Vulnerabilities > CVE-2017-17864 - Information Exposure vulnerability in Linux Kernel

047910
CVSS 2.1 - LOW
Attack vector
LOCAL
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
PARTIAL
Integrity impact
NONE
Availability impact
NONE
local
low complexity
linux
debian
CWE-200
nessus
NVD
Published: 2017-12-27
Updated: 2018-01-13

Summary

kernel/bpf/verifier.c in the Linux kernel through 4.14.8 mishandles states_equal comparisons between the pointer data type and the UNKNOWN_VALUE data type, which allows local users to obtain potentially sensitive address information, aka a "pointer leak."

Vulnerable Configurations

Part Description Count
OS
Linux
2708
OS
Debian
1

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Subverting Environment Variable Values
    The attacker directly or indirectly modifies environment variables used by or controlling the target software. The attacker's goal is to cause the target software to deviate from its expected operation in a manner that benefits the attacker.
  • Footprinting
    An attacker engages in probing and exploration activity to identify constituents and properties of the target. Footprinting is a general term to describe a variety of information gathering techniques, often used by attackers in preparation for some attack. It consists of using tools to learn as much as possible about the composition, configuration, and security mechanisms of the targeted application, system or network. Information that might be collected during a footprinting effort could include open ports, applications and their versions, network topology, and similar information. While footprinting is not intended to be damaging (although certain activities, such as network scans, can sometimes cause disruptions to vulnerable applications inadvertently) it may often pave the way for more damaging attacks.
  • Exploiting Trust in Client (aka Make the Client Invisible)
    An attack of this type exploits a programs' vulnerabilities in client/server communication channel authentication and data integrity. It leverages the implicit trust a server places in the client, or more importantly, that which the server believes is the client. An attacker executes this type of attack by placing themselves in the communication channel between client and server such that communication directly to the server is possible where the server believes it is communicating only with a valid client. There are numerous variations of this type of attack.
  • Browser Fingerprinting
    An attacker carefully crafts small snippets of Java Script to efficiently detect the type of browser the potential victim is using. Many web-based attacks need prior knowledge of the web browser including the version of browser to ensure successful exploitation of a vulnerability. Having this knowledge allows an attacker to target the victim with attacks that specifically exploit known or zero day weaknesses in the type and version of the browser used by the victim. Automating this process via Java Script as a part of the same delivery system used to exploit the browser is considered more efficient as the attacker can supply a browser fingerprinting method and integrate it with exploit code, all contained in Java Script and in response to the same web page request by the browser.
  • Session Credential Falsification through Prediction
    This attack targets predictable session ID in order to gain privileges. The attacker can predict the session ID used during a transaction to perform spoofing and session hijacking.

Nessus

  • NASL familyUbuntu Local Security Checks
    NASL idUBUNTU_USN-3523-2.NASL
    descriptionUSN-3523-1 fixed vulnerabilities in the Linux kernel for Ubuntu 17.10. This update provides the corresponding updates for the Linux Hardware Enablement (HWE) kernel from Ubuntu 17.10 for Ubuntu 16.04 LTS. Jann Horn discovered that microprocessors utilizing speculative execution and indirect branch prediction may allow unauthorized memory reads via sidechannel attacks. This flaw is known as Meltdown. A local attacker could use this to expose sensitive information, including kernel memory. (CVE-2017-5754) Jann Horn discovered that the Berkeley Packet Filter (BPF) implementation in the Linux kernel did not properly check the relationship between pointer values and the BPF stack. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-17863) Jann Horn discovered that the Berkeley Packet Filter (BPF) implementation in the Linux kernel improperly performed sign extension in some situations. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-16995) Alexei Starovoitov discovered that the Berkeley Packet Filter (BPF) implementation in the Linux kernel contained a branch-pruning logic issue around unreachable code. A local attacker could use this to cause a denial of service. (CVE-2017-17862) Jann Horn discovered that the Berkeley Packet Filter (BPF) implementation in the Linux kernel mishandled pointer data values in some situations. A local attacker could use this to to expose sensitive information (kernel memory). (CVE-2017-17864). Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen2020-06-01
    modified2020-06-02
    plugin id105747
    published2018-01-11
    reporterUbuntu Security Notice (C) 2018-2019 Canonical, Inc. / NASL script (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/105747
    titleUbuntu 16.04 LTS : linux-hwe, linux-azure, linux-gcp, linux-oem vulnerabilities (USN-3523-2) (Meltdown)
    code
    #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-3523-2. The text 
# itself is copyright (C) Canonical, Inc. See 
# <http://www.ubuntu.com/usn/>. Ubuntu(R) is a registered 
# trademark of Canonical, Inc.
#

include("compat.inc");

if (description)
{
  script_id(105747);
  script_version("3.16");
  script_cvs_date("Date: 2019/09/18 12:31:47");

  script_cve_id("CVE-2017-16995", "CVE-2017-17862", "CVE-2017-17863", "CVE-2017-17864", "CVE-2017-5754");
  script_xref(name:"USN", value:"3523-2");
  script_xref(name:"IAVA", value:"2018-A-0019");

  script_name(english:"Ubuntu 16.04 LTS : linux-hwe, linux-azure, linux-gcp, linux-oem vulnerabilities (USN-3523-2) (Meltdown)");
  script_summary(english:"Checks dpkg output for updated packages.");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote Ubuntu host is missing one or more security-related
patches."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"USN-3523-1 fixed vulnerabilities in the Linux kernel for Ubuntu 17.10.
This update provides the corresponding updates for the Linux Hardware
Enablement (HWE) kernel from Ubuntu 17.10 for Ubuntu 16.04 LTS.

Jann Horn discovered that microprocessors utilizing speculative
execution and indirect branch prediction may allow unauthorized memory
reads via sidechannel attacks. This flaw is known as Meltdown. A local
attacker could use this to expose sensitive information, including
kernel memory. (CVE-2017-5754)

Jann Horn discovered that the Berkeley Packet Filter (BPF)
implementation in the Linux kernel did not properly check the
relationship between pointer values and the BPF stack. A local
attacker could use this to cause a denial of service (system crash) or
possibly execute arbitrary code. (CVE-2017-17863)

Jann Horn discovered that the Berkeley Packet Filter (BPF)
implementation in the Linux kernel improperly performed sign extension
in some situations. A local attacker could use this to cause a denial
of service (system crash) or possibly execute arbitrary code.
(CVE-2017-16995)

Alexei Starovoitov discovered that the Berkeley Packet Filter (BPF)
implementation in the Linux kernel contained a branch-pruning logic
issue around unreachable code. A local attacker could use this to
cause a denial of service. (CVE-2017-17862)

Jann Horn discovered that the Berkeley Packet Filter (BPF)
implementation in the Linux kernel mishandled pointer data values in
some situations. A local attacker could use this to to expose
sensitive information (kernel memory). (CVE-2017-17864).

Note that Tenable Network Security has extracted the preceding
description block directly from the Ubuntu security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://usn.ubuntu.com/3523-2/"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:H/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:H/RL:O/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploit_framework_core", value:"true");
  script_set_attribute(attribute:"exploited_by_malware", value:"true");
  script_set_attribute(attribute:"metasploit_name", value:'Linux BPF Sign Extension Local Privilege Escalation');
  script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.13-azure");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.13-gcp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.13-generic");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.13-generic-lpae");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.13-lowlatency");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.13-oem");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-azure");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-gcp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-generic-hwe-16.04");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-generic-lpae-hwe-16.04");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-gke");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-lowlatency-hwe-16.04");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-oem");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:16.04");

  script_set_attribute(attribute:"vuln_publication_date", value:"2017/12/27");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/01/10");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/01/11");
  script_set_attribute(attribute:"in_the_news", value:"true");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"Ubuntu Security Notice (C) 2018-2019 Canonical, Inc. / NASL script (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Ubuntu Local Security Checks");

  script_dependencies("ssh_get_info.nasl", "linux_alt_patch_detect.nasl");
  script_require_keys("Host/cpu", "Host/Ubuntu", "Host/Ubuntu/release", "Host/Debian/dpkg-l");

  exit(0);
}


include("audit.inc");
include("ubuntu.inc");
include("ksplice.inc");

if ( ! get_kb_item("Host/local_checks_enabled") ) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/Ubuntu/release");
if ( isnull(release) ) audit(AUDIT_OS_NOT, "Ubuntu");
release = chomp(release);
if (! preg(pattern:"^(16\.04)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 16.04", "Ubuntu " + release);
if ( ! get_kb_item("Host/Debian/dpkg-l") ) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Ubuntu", cpu);

if (get_one_kb_item("Host/ksplice/kernel-cves"))
{
  rm_kb_item(name:"Host/uptrack-uname-r");
  cve_list = make_list("CVE-2017-16995", "CVE-2017-17862", "CVE-2017-17863", "CVE-2017-17864", "CVE-2017-5754");
  if (ksplice_cves_check(cve_list))
  {
    audit(AUDIT_PATCH_INSTALLED, "KSplice hotfix for USN-3523-2");
  }
  else
  {
    _ubuntu_report = ksplice_reporting_text();
  }
}

flag = 0;

if (ubuntu_check(osver:"16.04", pkgname:"linux-image-4.13.0-1005-azure", pkgver:"4.13.0-1005.7")) flag++;
if (ubuntu_check(osver:"16.04", pkgname:"linux-image-4.13.0-1006-gcp", pkgver:"4.13.0-1006.9")) flag++;
if (ubuntu_check(osver:"16.04", pkgname:"linux-image-4.13.0-1015-oem", pkgver:"4.13.0-1015.16")) flag++;
if (ubuntu_check(osver:"16.04", pkgname:"linux-image-4.13.0-26-generic", pkgver:"4.13.0-26.29~16.04.2")) flag++;
if (ubuntu_check(osver:"16.04", pkgname:"linux-image-4.13.0-26-generic-lpae", pkgver:"4.13.0-26.29~16.04.2")) flag++;
if (ubuntu_check(osver:"16.04", pkgname:"linux-image-4.13.0-26-lowlatency", pkgver:"4.13.0-26.29~16.04.2")) flag++;
if (ubuntu_check(osver:"16.04", pkgname:"linux-image-azure", pkgver:"4.13.0.1005.6")) flag++;
if (ubuntu_check(osver:"16.04", pkgname:"linux-image-gcp", pkgver:"4.13.0.1006.8")) flag++;
if (ubuntu_check(osver:"16.04", pkgname:"linux-image-generic-hwe-16.04", pkgver:"4.13.0.26.46")) flag++;
if (ubuntu_check(osver:"16.04", pkgname:"linux-image-generic-lpae-hwe-16.04", pkgver:"4.13.0.26.46")) flag++;
if (ubuntu_check(osver:"16.04", pkgname:"linux-image-gke", pkgver:"4.13.0.1006.8")) flag++;
if (ubuntu_check(osver:"16.04", pkgname:"linux-image-lowlatency-hwe-16.04", pkgver:"4.13.0.26.46")) flag++;
if (ubuntu_check(osver:"16.04", pkgname:"linux-image-oem", pkgver:"4.13.0.1015.18")) flag++;

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_HOLE,
    extra      : ubuntu_report_get()
  );
  exit(0);
}
else
{
  tested = ubuntu_pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "linux-image-4.13-azure / linux-image-4.13-gcp / etc");
}
  • NASL familyFedora Local Security Checks
    NASL idFEDORA_2018-22D5FA8A90.NASL
    descriptionThe 4.14.11 stable kernel update contains a number of important fixes across the tree. This also includes the KPTI patches to mitigate the Meltdown vulnerability for x86 architectures. Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen2020-06-05
    modified2018-01-15
    plugin id106024
    published2018-01-15
    reporterThis script is Copyright (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/106024
    titleFedora 27 : kernel (2018-22d5fa8a90)
    code
    #%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Fedora Security Advisory FEDORA-2018-22d5fa8a90.
#

include("compat.inc");

if (description)
{
  script_id(106024);
  script_version("1.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/04");

  script_cve_id("CVE-2017-17852", "CVE-2017-17853", "CVE-2017-17854", "CVE-2017-17855", "CVE-2017-17856", "CVE-2017-17857", "CVE-2017-17862", "CVE-2017-17863", "CVE-2017-17864");
  script_xref(name:"FEDORA", value:"2018-22d5fa8a90");

  script_name(english:"Fedora 27 : kernel (2018-22d5fa8a90)");
  script_summary(english:"Checks rpm output for the updated package.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Fedora host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"The 4.14.11 stable kernel update contains a number of important fixes
across the tree. This also includes the KPTI patches to mitigate the
Meltdown vulnerability for x86 architectures.

Note that Tenable Network Security has extracted the preceding
description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as
possible without introducing additional issues."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bodhi.fedoraproject.org/updates/FEDORA-2018-22d5fa8a90"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected kernel package."
  );
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:kernel");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:27");

  script_set_attribute(attribute:"vuln_publication_date", value:"2017/12/27");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/01/04");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/01/15");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Fedora Local Security Checks");

  script_dependencies("ssh_get_info.nasl", "linux_alt_patch_detect.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("rpm.inc");
include("ksplice.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || "Fedora" >!< release) audit(AUDIT_OS_NOT, "Fedora");
os_ver = pregmatch(pattern: "Fedora.*release ([0-9]+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Fedora");
os_ver = os_ver[1];
if (! preg(pattern:"^27([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 27", "Fedora " + os_ver);

if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);


cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Fedora", cpu);

if (get_one_kb_item("Host/ksplice/kernel-cves"))
{
  rm_kb_item(name:"Host/uptrack-uname-r");
  cve_list = make_list("CVE-2017-17852", "CVE-2017-17853", "CVE-2017-17854", "CVE-2017-17855", "CVE-2017-17856", "CVE-2017-17857", "CVE-2017-17862", "CVE-2017-17863", "CVE-2017-17864");
  if (ksplice_cves_check(cve_list))
  {
    audit(AUDIT_PATCH_INSTALLED, "KSplice hotfix for FEDORA-2018-22d5fa8a90");
  }
  else
  {
    __rpm_report = ksplice_reporting_text();
  }
}

flag = 0;
if (rpm_check(release:"FC27", reference:"kernel-4.14.11-300.fc27")) flag++;


if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_HOLE,
    extra      : rpm_report_get()
  );
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "kernel");
}
  • NASL familyUbuntu Local Security Checks
    NASL idUBUNTU_USN-3523-3.NASL
    descriptionJann Horn discovered that the Berkeley Packet Filter (BPF) implementation in the Linux kernel did not properly check the relationship between pointer values and the BPF stack. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-17863) Jann Horn discovered that the Berkeley Packet Filter (BPF) implementation in the Linux kernel improperly performed sign extension in some situations. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-16995) Alexei Starovoitov discovered that the Berkeley Packet Filter (BPF) implementation in the Linux kernel contained a branch-pruning logic issue around unreachable code. A local attacker could use this to cause a denial of service. (CVE-2017-17862) Jann Horn discovered that the Berkeley Packet Filter (BPF) implementation in the Linux kernel mishandled pointer data values in some situations. A local attacker could use this to to expose sensitive information (kernel memory). (CVE-2017-17864). Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen2020-06-01
    modified2020-06-02
    plugin id105748
    published2018-01-11
    reporterUbuntu Security Notice (C) 2018-2019 Canonical, Inc. / NASL script (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/105748
    titleUbuntu 17.10 : linux-raspi2 vulnerabilities (USN-3523-3)
    code
    #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-3523-3. The text 
# itself is copyright (C) Canonical, Inc. See 
# <http://www.ubuntu.com/usn/>. Ubuntu(R) is a registered 
# trademark of Canonical, Inc.
#

include("compat.inc");

if (description)
{
  script_id(105748);
  script_version("3.14");
  script_cvs_date("Date: 2019/09/18 12:31:47");

  script_cve_id("CVE-2017-16995", "CVE-2017-17862", "CVE-2017-17863", "CVE-2017-17864");
  script_xref(name:"USN", value:"3523-3");

  script_name(english:"Ubuntu 17.10 : linux-raspi2 vulnerabilities (USN-3523-3)");
  script_summary(english:"Checks dpkg output for updated packages.");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote Ubuntu host is missing one or more security-related
patches."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Jann Horn discovered that the Berkeley Packet Filter (BPF)
implementation in the Linux kernel did not properly check the
relationship between pointer values and the BPF stack. A local
attacker could use this to cause a denial of service (system crash) or
possibly execute arbitrary code. (CVE-2017-17863)

Jann Horn discovered that the Berkeley Packet Filter (BPF)
implementation in the Linux kernel improperly performed sign extension
in some situations. A local attacker could use this to cause a denial
of service (system crash) or possibly execute arbitrary code.
(CVE-2017-16995)

Alexei Starovoitov discovered that the Berkeley Packet Filter (BPF)
implementation in the Linux kernel contained a branch-pruning logic
issue around unreachable code. A local attacker could use this to
cause a denial of service. (CVE-2017-17862)

Jann Horn discovered that the Berkeley Packet Filter (BPF)
implementation in the Linux kernel mishandled pointer data values in
some situations. A local attacker could use this to to expose
sensitive information (kernel memory). (CVE-2017-17864).

Note that Tenable Network Security has extracted the preceding
description block directly from the Ubuntu security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://usn.ubuntu.com/3523-3/"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Update the affected linux-image-4.13-raspi2 and / or
linux-image-raspi2 packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:H/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:H/RL:O/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploit_framework_core", value:"true");
  script_set_attribute(attribute:"exploited_by_malware", value:"true");
  script_set_attribute(attribute:"metasploit_name", value:'Linux BPF Sign Extension Local Privilege Escalation');
  script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-4.13-raspi2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-raspi2");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:17.10");

  script_set_attribute(attribute:"vuln_publication_date", value:"2017/12/27");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/01/10");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/01/11");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"Ubuntu Security Notice (C) 2018-2019 Canonical, Inc. / NASL script (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Ubuntu Local Security Checks");

  script_dependencies("ssh_get_info.nasl", "linux_alt_patch_detect.nasl");
  script_require_keys("Host/cpu", "Host/Ubuntu", "Host/Ubuntu/release", "Host/Debian/dpkg-l");

  exit(0);
}


include("audit.inc");
include("ubuntu.inc");
include("ksplice.inc");

if ( ! get_kb_item("Host/local_checks_enabled") ) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/Ubuntu/release");
if ( isnull(release) ) audit(AUDIT_OS_NOT, "Ubuntu");
release = chomp(release);
if (! preg(pattern:"^(17\.10)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 17.10", "Ubuntu " + release);
if ( ! get_kb_item("Host/Debian/dpkg-l") ) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Ubuntu", cpu);

if (get_one_kb_item("Host/ksplice/kernel-cves"))
{
  rm_kb_item(name:"Host/uptrack-uname-r");
  cve_list = make_list("CVE-2017-16995", "CVE-2017-17862", "CVE-2017-17863", "CVE-2017-17864");
  if (ksplice_cves_check(cve_list))
  {
    audit(AUDIT_PATCH_INSTALLED, "KSplice hotfix for USN-3523-3");
  }
  else
  {
    _ubuntu_report = ksplice_reporting_text();
  }
}

flag = 0;

if (ubuntu_check(osver:"17.10", pkgname:"linux-image-4.13.0-1011-raspi2", pkgver:"4.13.0-1011.11")) flag++;
if (ubuntu_check(osver:"17.10", pkgname:"linux-image-raspi2", pkgver:"4.13.0.1011.9")) flag++;

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_HOLE,
    extra      : ubuntu_report_get()
  );
  exit(0);
}
else
{
  tested = ubuntu_pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "linux-image-4.13-raspi2 / linux-image-raspi2");
}
  • NASL familyDebian Local Security Checks
    NASL idDEBIAN_DSA-4073.NASL
    descriptionSeveral vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks. - CVE-2017-8824 Mohamed Ghannam discovered that the DCCP implementation did not correctly manage resources when a socket is disconnected and reconnected, potentially leading to a use-after-free. A local user could use this for denial of service (crash or data corruption) or possibly for privilege escalation. On systems that do not already have the dccp module loaded, this can be mitigated by disabling it:echo >> /etc/modprobe.d/disable-dccp.conf install dccp false - CVE-2017-16538 Andrey Konovalov reported that the dvb-usb-lmedm04 media driver did not correctly handle some error conditions during initialisation. A physically present user with a specially designed USB device can use this to cause a denial of service (crash). - CVE-2017-16644 Andrey Konovalov reported that the hdpvr media driver did not correctly handle some error conditions during initialisation. A physically present user with a specially designed USB device can use this to cause a denial of service (crash). - CVE-2017-16995 Jann Horn discovered that the Extended BPF verifier did not correctly model the behaviour of 32-bit load instructions. A local user can use this for privilege escalation. - CVE-2017-17448 Kevin Cernekee discovered that the netfilter subsystem allowed users with the CAP_NET_ADMIN capability in any user namespace, not just the root namespace, to enable and disable connection tracking helpers. This could lead to denial of service, violation of network security policy, or have other impact. - CVE-2017-17449 Kevin Cernekee discovered that the netlink subsystem allowed users with the CAP_NET_ADMIN capability in any user namespace to monitor netlink traffic in all net namespaces, not just those owned by that user namespace. This could lead to exposure of sensitive information. - CVE-2017-17450 Kevin Cernekee discovered that the xt_osf module allowed users with the CAP_NET_ADMIN capability in any user namespace to modify the global OS fingerprint list. - CVE-2017-17558 Andrey Konovalov reported that that USB core did not correctly handle some error conditions during initialisation. A physically present user with a specially designed USB device can use this to cause a denial of service (crash or memory corruption), or possibly for privilege escalation. - CVE-2017-17712 Mohamed Ghannam discovered a race condition in the IPv4 raw socket implementation. A local user could use this to obtain sensitive information from the kernel. - CVE-2017-17741 Dmitry Vyukov reported that the KVM implementation for x86 would over-read data from memory when emulating an MMIO write if the kvm_mmio tracepoint was enabled. A guest virtual machine might be able to use this to cause a denial of service (crash). - CVE-2017-17805 It was discovered that some implementations of the Salsa20 block cipher did not correctly handle zero-length input. A local user could use this to cause a denial of service (crash) or possibly have other security impact. - CVE-2017-17806 It was discovered that the HMAC implementation could be used with an underlying hash algorithm that requires a key, which was not intended. A local user could use this to cause a denial of service (crash or memory corruption), or possibly for privilege escalation. - CVE-2017-17807 Eric Biggers discovered that the KEYS subsystem lacked a check for write permission when adding keys to a process
    last seen2020-06-01
    modified2020-06-02
    plugin id105433
    published2017-12-26
    reporterThis script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/105433
    titleDebian DSA-4073-1 : linux - security update
    code
    #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Debian Security Advisory DSA-4073. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(105433);
  script_version("3.15");
  script_cvs_date("Date: 2019/08/23 10:01:45");

  script_cve_id("CVE-2017-1000407", "CVE-2017-1000410", "CVE-2017-16538", "CVE-2017-16644", "CVE-2017-16995", "CVE-2017-17448", "CVE-2017-17449", "CVE-2017-17450", "CVE-2017-17558", "CVE-2017-17712", "CVE-2017-17741", "CVE-2017-17805", "CVE-2017-17806", "CVE-2017-17807", "CVE-2017-17862", "CVE-2017-17863", "CVE-2017-17864", "CVE-2017-8824");
  script_xref(name:"DSA", value:"4073");

  script_name(english:"Debian DSA-4073-1 : linux - security update");
  script_summary(english:"Checks dpkg output for the updated package");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Debian host is missing a security-related update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Several vulnerabilities have been discovered in the Linux kernel that
may lead to a privilege escalation, denial of service or information
leaks.

  - CVE-2017-8824
    Mohamed Ghannam discovered that the DCCP implementation
    did not correctly manage resources when a socket is
    disconnected and reconnected, potentially leading to a
    use-after-free. A local user could use this for denial
    of service (crash or data corruption) or possibly for
    privilege escalation. On systems that do not already
    have the dccp module loaded, this can be mitigated by
    disabling it:echo >> /etc/modprobe.d/disable-dccp.conf
    install dccp false

  - CVE-2017-16538
    Andrey Konovalov reported that the dvb-usb-lmedm04 media
    driver did not correctly handle some error conditions
    during initialisation. A physically present user with a
    specially designed USB device can use this to cause a
    denial of service (crash).

  - CVE-2017-16644
    Andrey Konovalov reported that the hdpvr media driver
    did not correctly handle some error conditions during
    initialisation. A physically present user with a
    specially designed USB device can use this to cause a
    denial of service (crash).

  - CVE-2017-16995
    Jann Horn discovered that the Extended BPF verifier did
    not correctly model the behaviour of 32-bit load
    instructions. A local user can use this for privilege
    escalation.

  - CVE-2017-17448
    Kevin Cernekee discovered that the netfilter subsystem
    allowed users with the CAP_NET_ADMIN capability in any
    user namespace, not just the root namespace, to enable
    and disable connection tracking helpers. This could lead
    to denial of service, violation of network security
    policy, or have other impact.

  - CVE-2017-17449
    Kevin Cernekee discovered that the netlink subsystem
    allowed users with the CAP_NET_ADMIN capability in any
    user namespace to monitor netlink traffic in all net
    namespaces, not just those owned by that user namespace.
    This could lead to exposure of sensitive information.

  - CVE-2017-17450
    Kevin Cernekee discovered that the xt_osf module allowed
    users with the CAP_NET_ADMIN capability in any user
    namespace to modify the global OS fingerprint list.

  - CVE-2017-17558
    Andrey Konovalov reported that that USB core did not
    correctly handle some error conditions during
    initialisation. A physically present user with a
    specially designed USB device can use this to cause a
    denial of service (crash or memory corruption), or
    possibly for privilege escalation.

  - CVE-2017-17712
    Mohamed Ghannam discovered a race condition in the IPv4
    raw socket implementation. A local user could use this
    to obtain sensitive information from the kernel.

  - CVE-2017-17741
    Dmitry Vyukov reported that the KVM implementation for
    x86 would over-read data from memory when emulating an
    MMIO write if the kvm_mmio tracepoint was enabled. A
    guest virtual machine might be able to use this to cause
    a denial of service (crash).

  - CVE-2017-17805
    It was discovered that some implementations of the
    Salsa20 block cipher did not correctly handle
    zero-length input. A local user could use this to cause
    a denial of service (crash) or possibly have other
    security impact.

  - CVE-2017-17806
    It was discovered that the HMAC implementation could be
    used with an underlying hash algorithm that requires a
    key, which was not intended. A local user could use this
    to cause a denial of service (crash or memory
    corruption), or possibly for privilege escalation.

  - CVE-2017-17807
    Eric Biggers discovered that the KEYS subsystem lacked a
    check for write permission when adding keys to a
    process's default keyring. A local user could use this
    to cause a denial of service or to obtain sensitive
    information.

  - CVE-2017-17862
    Alexei Starovoitov discovered that the Extended BPF
    verifier ignored unreachable code, even though it would
    still be processed by JIT compilers. This could possibly
    be used by local users for denial of service. It also
    increases the severity of bugs in determining
    unreachable code.

  - CVE-2017-17863
    Jann Horn discovered that the Extended BPF verifier did
    not correctly model pointer arithmetic on the stack
    frame pointer. A local user can use this for privilege
    escalation.

  - CVE-2017-17864
    Jann Horn discovered that the Extended BPF verifier
    could fail to detect pointer leaks from conditional
    code. A local user could use this to obtain sensitive
    information in order to exploit other vulnerabilities.

  - CVE-2017-1000407
    Andrew Honig reported that the KVM implementation for
    Intel processors allowed direct access to host I/O port
    0x80, which is not generally safe. On some systems this
    allows a guest VM to cause a denial of service (crash)
    of the host.

  - CVE-2017-1000410
    Ben Seri reported that the Bluetooth subsystem did not
    correctly handle short EFS information elements in L2CAP
    messages. An attacker able to communicate over Bluetooth
    could use this to obtain sensitive information from the
    kernel.

The various problems in the Extended BPF verifier can be mitigated by
disabling use of Extended BPF by unprivileged users:sysctl
kernel.unprivileged_bpf_disabled=1

Debian disables unprivileged user namespaces by default, but if they
are enabled (via the kernel.unprivileged_userns_clone sysctl) then
CVE-2017-17448 can be exploited by any local user."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2017-8824"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2017-16538"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2017-16644"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2017-16995"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2017-17448"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2017-17449"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2017-17450"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2017-17558"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2017-17712"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2017-17741"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2017-17805"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2017-17806"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2017-17807"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2017-17862"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2017-17863"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2017-17864"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2017-1000407"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2017-1000410"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2017-17448"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/source-package/linux"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/stretch/linux"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.debian.org/security/2017/dsa-4073"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the linux packages.

For the stable distribution (stretch), these problems have been fixed
in version 4.9.65-3+deb9u1."
  );
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:F/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:F/RL:O/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploit_framework_core", value:"true");
  script_set_attribute(attribute:"exploited_by_malware", value:"true");
  script_set_attribute(attribute:"metasploit_name", value:'Linux BPF Sign Extension Local Privilege Escalation');
  script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:linux");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:9.0");

  script_set_attribute(attribute:"vuln_publication_date", value:"2017/11/04");
  script_set_attribute(attribute:"patch_publication_date", value:"2017/12/23");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/12/26");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Debian Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/Debian/release", "Host/Debian/dpkg-l");

  exit(0);
}


include("audit.inc");
include("debian_package.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Debian/release")) audit(AUDIT_OS_NOT, "Debian");
if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;
if (deb_check(release:"9.0", prefix:"hyperv-daemons", reference:"4.9.65-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"libcpupower-dev", reference:"4.9.65-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"libcpupower1", reference:"4.9.65-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"libusbip-dev", reference:"4.9.65-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"linux-compiler-gcc-6-arm", reference:"4.9.65-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"linux-compiler-gcc-6-s390", reference:"4.9.65-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"linux-compiler-gcc-6-x86", reference:"4.9.65-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"linux-cpupower", reference:"4.9.65-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"linux-doc-4.9", reference:"4.9.65-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-4kc-malta", reference:"4.9.65-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-5kc-malta", reference:"4.9.65-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-686", reference:"4.9.65-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-686-pae", reference:"4.9.65-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-all", reference:"4.9.65-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-all-amd64", reference:"4.9.65-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-all-arm64", reference:"4.9.65-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-all-armel", reference:"4.9.65-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-all-armhf", reference:"4.9.65-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-all-i386", reference:"4.9.65-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-all-mips", reference:"4.9.65-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-all-mips64el", reference:"4.9.65-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-all-mipsel", reference:"4.9.65-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-all-ppc64el", reference:"4.9.65-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-all-s390x", reference:"4.9.65-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-amd64", reference:"4.9.65-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-arm64", reference:"4.9.65-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-armmp", reference:"4.9.65-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-armmp-lpae", reference:"4.9.65-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-common", reference:"4.9.65-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-common-rt", reference:"4.9.65-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-loongson-3", reference:"4.9.65-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-marvell", reference:"4.9.65-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-octeon", reference:"4.9.65-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-powerpc64le", reference:"4.9.65-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-rt-686-pae", reference:"4.9.65-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-rt-amd64", reference:"4.9.65-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"linux-headers-4.9.0-9-s390x", reference:"4.9.65-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-4kc-malta", reference:"4.9.65-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-4kc-malta-dbg", reference:"4.9.65-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-5kc-malta", reference:"4.9.65-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-5kc-malta-dbg", reference:"4.9.65-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-686", reference:"4.9.65-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-686-dbg", reference:"4.9.65-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-686-pae", reference:"4.9.65-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-686-pae-dbg", reference:"4.9.65-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-amd64", reference:"4.9.65-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-amd64-dbg", reference:"4.9.65-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-arm64", reference:"4.9.65-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-arm64-dbg", reference:"4.9.65-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-armmp", reference:"4.9.65-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-armmp-dbg", reference:"4.9.65-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-armmp-lpae", reference:"4.9.65-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-armmp-lpae-dbg", reference:"4.9.65-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-loongson-3", reference:"4.9.65-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-loongson-3-dbg", reference:"4.9.65-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-marvell", reference:"4.9.65-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-marvell-dbg", reference:"4.9.65-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-octeon", reference:"4.9.65-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-octeon-dbg", reference:"4.9.65-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-powerpc64le", reference:"4.9.65-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-powerpc64le-dbg", reference:"4.9.65-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-rt-686-pae", reference:"4.9.65-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-rt-686-pae-dbg", reference:"4.9.65-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-rt-amd64", reference:"4.9.65-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-rt-amd64-dbg", reference:"4.9.65-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-s390x", reference:"4.9.65-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"linux-image-4.9.0-9-s390x-dbg", reference:"4.9.65-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"linux-kbuild-4.9", reference:"4.9.65-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"linux-libc-dev", reference:"4.9.65-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"linux-manual-4.9", reference:"4.9.65-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"linux-perf-4.9", reference:"4.9.65-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"linux-source-4.9", reference:"4.9.65-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"linux-support-4.9.0-9", reference:"4.9.65-3+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"usbip", reference:"4.9.65-3+deb9u1")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:deb_report_get());
  else security_hole(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");
  • NASL familyFedora Local Security Checks
    NASL idFEDORA_2018-8ED5EFF2C0.NASL
    descriptionThe 4.14.11 stable kernel update contains a number of important fixes across the tree. This also includes the KPTI patches to mitigate the Meltdown vulnerability for x86 architectures Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen2020-06-05
    modified2018-01-05
    plugin id105596
    published2018-01-05
    reporterThis script is Copyright (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/105596
    titleFedora 26 : kernel (2018-8ed5eff2c0)
    code
    #%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Fedora Security Advisory FEDORA-2018-8ed5eff2c0.
#

include("compat.inc");

if (description)
{
  script_id(105596);
  script_version("3.6");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/04");

  script_cve_id("CVE-2017-17852", "CVE-2017-17853", "CVE-2017-17854", "CVE-2017-17855", "CVE-2017-17856", "CVE-2017-17857", "CVE-2017-17862", "CVE-2017-17863", "CVE-2017-17864");
  script_xref(name:"FEDORA", value:"2018-8ed5eff2c0");

  script_name(english:"Fedora 26 : kernel (2018-8ed5eff2c0)");
  script_summary(english:"Checks rpm output for the updated package.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Fedora host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"The 4.14.11 stable kernel update contains a number of important fixes
across the tree. This also includes the KPTI patches to mitigate the
Meltdown vulnerability for x86 architectures

Note that Tenable Network Security has extracted the preceding
description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as
possible without introducing additional issues."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bodhi.fedoraproject.org/updates/FEDORA-2018-8ed5eff2c0"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected kernel package."
  );
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:kernel");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:26");

  script_set_attribute(attribute:"vuln_publication_date", value:"2017/12/27");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/01/04");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/01/05");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Fedora Local Security Checks");

  script_dependencies("ssh_get_info.nasl", "linux_alt_patch_detect.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("rpm.inc");
include("ksplice.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || "Fedora" >!< release) audit(AUDIT_OS_NOT, "Fedora");
os_ver = pregmatch(pattern: "Fedora.*release ([0-9]+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Fedora");
os_ver = os_ver[1];
if (! preg(pattern:"^26([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 26", "Fedora " + os_ver);

if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);


cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Fedora", cpu);

if (get_one_kb_item("Host/ksplice/kernel-cves"))
{
  rm_kb_item(name:"Host/uptrack-uname-r");
  cve_list = make_list("CVE-2017-17852", "CVE-2017-17853", "CVE-2017-17854", "CVE-2017-17855", "CVE-2017-17856", "CVE-2017-17857", "CVE-2017-17862", "CVE-2017-17863", "CVE-2017-17864");
  if (ksplice_cves_check(cve_list))
  {
    audit(AUDIT_PATCH_INSTALLED, "KSplice hotfix for FEDORA-2018-8ed5eff2c0");
  }
  else
  {
    __rpm_report = ksplice_reporting_text();
  }
}

flag = 0;
if (rpm_check(release:"FC26", reference:"kernel-4.14.11-200.fc26")) flag++;


if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_HOLE,
    extra      : rpm_report_get()
  );
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "kernel");
}
  • NASL familySuSE Local Security Checks
    NASL idSUSE_SU-2018-0383-1.NASL
    descriptionThe SUSE Linux Enterprise 12 SP3 kernel was updated to 4.4.114 to receive various security and bugfixes. The following security bugs were fixed : - CVE-2017-5715: Systems with microprocessors utilizing speculative execution and indirect branch prediction may allow unauthorized disclosure of information to an attacker with local user access via a side-channel analysis (bnc#1068032). The previous fix using CPU Microcode has been complemented by building the Linux Kernel with return trampolines aka
    last seen2020-06-01
    modified2020-06-02
    plugin id106672
    published2018-02-08
    reporterThis script is Copyright (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/106672
    titleSUSE SLED12 / SLES12 Security Update : kernel (SUSE-SU-2018:0383-1) (Spectre)
    code
    #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from SUSE update advisory SUSE-SU-2018:0383-1.
# The text itself is copyright (C) SUSE.
#

include("compat.inc");

if (description)
{
  script_id(106672);
  script_version("3.8");
  script_cvs_date("Date: 2020/01/23");

  script_cve_id("CVE-2017-15129", "CVE-2017-17712", "CVE-2017-17862", "CVE-2017-17864", "CVE-2017-18017", "CVE-2017-5715", "CVE-2018-1000004", "CVE-2018-5332", "CVE-2018-5333");
  script_xref(name:"IAVA", value:"2018-A-0020");

  script_name(english:"SUSE SLED12 / SLES12 Security Update : kernel (SUSE-SU-2018:0383-1) (Spectre)");
  script_summary(english:"Checks rpm output for the updated packages.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote SUSE host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"The SUSE Linux Enterprise 12 SP3 kernel was updated to 4.4.114 to
receive various security and bugfixes. The following security bugs
were fixed :

  - CVE-2017-5715: Systems with microprocessors utilizing
    speculative execution and indirect branch prediction may
    allow unauthorized disclosure of information to an
    attacker with local user access via a side-channel
    analysis (bnc#1068032). The previous fix using CPU
    Microcode has been complemented by building the Linux
    Kernel with return trampolines aka 'retpolines'.

  - CVE-2017-15129: A use-after-free vulnerability was found
    in network namespaces code affecting the Linux kernel in
    the function get_net_ns_by_id() in
    net/core/net_namespace.c did not check for the
    net::count value after it has found a peer network in
    netns_ids idr, which could lead to double free and
    memory corruption. This vulnerability could allow an
    unprivileged local user to induce kernel memory
    corruption on the system, leading to a crash. Due to the
    nature of the flaw, privilege escalation cannot be fully
    ruled out, although it is thought to be unlikely
    (bnc#1074839).

  - CVE-2017-17712: The raw_sendmsg() function in
    net/ipv4/raw.c in the Linux kernel has a race condition
    in inet->hdrincl that leads to uninitialized stack
    pointer usage; this allowed a local user to execute code
    and gain privileges (bnc#1073229).

  - CVE-2017-17862: kernel/bpf/verifier.c in the Linux
    kernel ignored unreachable code, even though it would
    still be processed by JIT compilers. This behavior, also
    considered an improper branch-pruning logic issue, could
    possibly be used by local users for denial of service
    (bnc#1073928).

  - CVE-2017-17864: kernel/bpf/verifier.c in the Linux
    kernel mishandled states_equal comparisons between the
    pointer data type and the UNKNOWN_VALUE data type, which
    allowed local users to obtain potentially sensitive
    address information, aka a 'pointer leak (bnc#1073928).

  - CVE-2017-18017: The tcpmss_mangle_packet function in
    net/netfilter/xt_TCPMSS.c in the Linux kernel allowed
    remote attackers to cause a denial of service
    (use-after-free and memory corruption) or possibly have
    unspecified other impact by leveraging the presence of
    xt_TCPMSS in an iptables action (bnc#1074488).

  - CVE-2018-5332: In the Linux kernel the
    rds_message_alloc_sgs() function did not validate a
    value that is used during DMA page allocation, leading
    to a heap-based out-of-bounds write (related to the
    rds_rdma_extra_size function in net/rds/rdma.c)
    (bnc#1075621).

  - CVE-2018-5333: In the Linux kernel the rds_cmsg_atomic
    function in net/rds/rdma.c mishandled cases where page
    pinning fails or an invalid address is supplied, leading
    to an rds_atomic_free_op NULL pointer dereference
    (bnc#1075617).

  - CVE-2018-1000004: In the Linux kernel a race condition
    vulnerability existed in the sound system, this can lead
    to a deadlock and denial of service condition
    (bnc#1076017).

The update package also includes non-security fixes. See advisory for
details.

Note that Tenable Network Security has extracted the preceding
description block directly from the SUSE security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1005778"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1005780"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1005781"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1012382"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1012917"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1015342"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1015343"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1019784"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1022476"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1022595"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1022912"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1024296"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1024376"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1031395"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1031492"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1031717"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1037838"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1038078"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1038085"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1040182"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1043652"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1048325"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1048585"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1053472"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1060279"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1062129"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1066163"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1066223"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1068032"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1068038"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1068569"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1068984"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1069138"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1069160"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1070052"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1070799"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1072163"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1072484"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1073229"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1073928"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1074134"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1074488"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1074621"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1074709"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1074839"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1074847"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1075066"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1075078"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1075087"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1075091"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1075397"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1075428"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1075617"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1075621"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1075627"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1075811"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1075994"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1076017"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1076110"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1076187"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1076232"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1076805"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1076847"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1076872"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1076899"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1077068"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1077560"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1077592"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1077704"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1077871"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1078002"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1078681"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=963844"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=966170"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=966172"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=973818"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=985025"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2017-15129/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2017-17712/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2017-17862/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2017-17864/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2017-18017/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2017-5715/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2018-1000004/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2018-5332/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2018-5333/"
  );
  # https://www.suse.com/support/update/announcement/2018/suse-su-20180383-1/
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?6ee4398f"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"To install this SUSE Security Update use YaST online_update.
Alternatively you can run the command listed for your product :

SUSE Linux Enterprise Workstation Extension 12-SP3:zypper in -t patch
SUSE-SLE-WE-12-SP3-2018-271=1

SUSE Linux Enterprise Software Development Kit 12-SP3:zypper in -t
patch SUSE-SLE-SDK-12-SP3-2018-271=1

SUSE Linux Enterprise Server 12-SP3:zypper in -t patch
SUSE-SLE-SERVER-12-SP3-2018-271=1

SUSE Linux Enterprise Live Patching 12-SP3:zypper in -t patch
SUSE-SLE-Live-Patching-12-SP3-2018-271=1

SUSE Linux Enterprise High Availability 12-SP3:zypper in -t patch
SUSE-SLE-HA-12-SP3-2018-271=1

SUSE Linux Enterprise Desktop 12-SP3:zypper in -t patch
SUSE-SLE-DESKTOP-12-SP3-2018-271=1

SUSE CaaS Platform ALL:zypper in -t patch SUSE-CAASP-ALL-2018-271=1

To bring your system up-to-date, use 'zypper patch'."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:H/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:H/RL:O/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploited_by_malware", value:"true");
  script_set_attribute(attribute:"metasploit_name", value:'Reliable Datagram Sockets (RDS) rds_atomic_free_op NULL pointer dereference Privilege Escalation');
  script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-default");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-default-base");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-default-base-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-default-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-default-debugsource");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-default-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-default-extra");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-default-extra-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-default-man");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-syms");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:12");

  script_set_attribute(attribute:"vuln_publication_date", value:"2017/12/16");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/02/07");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/02/08");
  script_set_attribute(attribute:"in_the_news", value:"true");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"SuSE Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/SuSE/release", "Host/SuSE/rpm-list");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("rpm.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/SuSE/release");
if (isnull(release) || release !~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "SUSE");
os_ver = pregmatch(pattern: "^(SLE(S|D)\d+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "SUSE");
os_ver = os_ver[1];
if (! preg(pattern:"^(SLED12|SLES12)$", string:os_ver)) audit(AUDIT_OS_NOT, "SUSE SLED12 / SLES12", "SUSE " + os_ver);

if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if (cpu !~ "^i[3-6]86$" && "x86_64" >!< cpu && "s390x" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "SUSE " + os_ver, cpu);

sp = get_kb_item("Host/SuSE/patchlevel");
if (isnull(sp)) sp = "0";
if (os_ver == "SLES12" && (! preg(pattern:"^(3)$", string:sp))) audit(AUDIT_OS_NOT, "SLES12 SP3", os_ver + " SP" + sp);
if (os_ver == "SLED12" && (! preg(pattern:"^(3)$", string:sp))) audit(AUDIT_OS_NOT, "SLED12 SP3", os_ver + " SP" + sp);


flag = 0;
if (rpm_check(release:"SLES12", sp:"3", cpu:"s390x", reference:"kernel-default-man-4.4.114-94.11.3")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"kernel-default-4.4.114-94.11.3")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"kernel-default-base-4.4.114-94.11.3")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"kernel-default-base-debuginfo-4.4.114-94.11.3")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"kernel-default-debuginfo-4.4.114-94.11.3")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"kernel-default-debugsource-4.4.114-94.11.3")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"kernel-default-devel-4.4.114-94.11.3")) flag++;
if (rpm_check(release:"SLES12", sp:"3", reference:"kernel-syms-4.4.114-94.11.2")) flag++;
if (rpm_check(release:"SLED12", sp:"3", cpu:"x86_64", reference:"kernel-default-4.4.114-94.11.3")) flag++;
if (rpm_check(release:"SLED12", sp:"3", cpu:"x86_64", reference:"kernel-default-debuginfo-4.4.114-94.11.3")) flag++;
if (rpm_check(release:"SLED12", sp:"3", cpu:"x86_64", reference:"kernel-default-debugsource-4.4.114-94.11.3")) flag++;
if (rpm_check(release:"SLED12", sp:"3", cpu:"x86_64", reference:"kernel-default-devel-4.4.114-94.11.3")) flag++;
if (rpm_check(release:"SLED12", sp:"3", cpu:"x86_64", reference:"kernel-default-extra-4.4.114-94.11.3")) flag++;
if (rpm_check(release:"SLED12", sp:"3", cpu:"x86_64", reference:"kernel-default-extra-debuginfo-4.4.114-94.11.3")) flag++;
if (rpm_check(release:"SLED12", sp:"3", cpu:"x86_64", reference:"kernel-syms-4.4.114-94.11.2")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
  else security_hole(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "kernel");
}
  • NASL familySuSE Local Security Checks
    NASL idSUSE_SU-2018-0416-1.NASL
    descriptionThe SUSE Linux Enterprise 12 SP2 kernel was updated to 4.4.114 to receive various security and bugfixes. The following security bugs were fixed : - CVE-2017-5715: Systems with microprocessors utilizing speculative execution and indirect branch prediction may allow unauthorized disclosure of information to an attacker with local user access via a side-channel analysis (bnc#1068032). The previous fix using CPU Microcode has been complemented by building the Linux Kernel with return trampolines aka
    last seen2020-06-01
    modified2020-06-02
    plugin id106748
    published2018-02-12
    reporterThis script is Copyright (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/106748
    titleSUSE SLED12 / SLES12 Security Update : kernel (SUSE-SU-2018:0416-1) (Spectre)
  • NASL familySuSE Local Security Checks
    NASL idOPENSUSE-2018-153.NASL
    descriptionThe openSUSE Leap 42.3 kernel was updated to 4.4.114 to receive various security and bugfixes. The following security bugs were fixed : - CVE-2017-5715: Systems with microprocessors utilizing speculative execution and indirect branch prediction may allow unauthorized disclosure of information to an attacker with local user access via a side-channel analysis (bnc#1068032). The previous fix using CPU Microcode has been complemented by building the Linux Kernel with return trampolines aka
    last seen2020-06-05
    modified2018-02-12
    plugin id106740
    published2018-02-12
    reporterThis script is Copyright (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/106740
    titleopenSUSE Security Update : the Linux Kernel (openSUSE-2018-153) (Spectre)
  • NASL familyUbuntu Local Security Checks
    NASL idUBUNTU_USN-3523-1.NASL
    descriptionJann Horn discovered that microprocessors utilizing speculative execution and indirect branch prediction may allow unauthorized memory reads via sidechannel attacks. This flaw is known as Meltdown. A local attacker could use this to expose sensitive information, including kernel memory. (CVE-2017-5754) Jann Horn discovered that the Berkeley Packet Filter (BPF) implementation in the Linux kernel did not properly check the relationship between pointer values and the BPF stack. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-17863) Jann Horn discovered that the Berkeley Packet Filter (BPF) implementation in the Linux kernel improperly performed sign extension in some situations. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-16995) Alexei Starovoitov discovered that the Berkeley Packet Filter (BPF) implementation in the Linux kernel contained a branch-pruning logic issue around unreachable code. A local attacker could use this to cause a denial of service. (CVE-2017-17862) Jann Horn discovered that the Berkeley Packet Filter (BPF) implementation in the Linux kernel mishandled pointer data values in some situations. A local attacker could use this to to expose sensitive information (kernel memory). (CVE-2017-17864). Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen2020-06-01
    modified2020-06-02
    plugin id105726
    published2018-01-10
    reporterUbuntu Security Notice (C) 2018-2019 Canonical, Inc. / NASL script (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/105726
    titleUbuntu 17.10 : linux vulnerabilities (USN-3523-1) (Meltdown)
  • NASL familyHuawei Local Security Checks
    NASL idEULEROS_SA-2019-1532.NASL
    descriptionAccording to the versions of the kernel packages installed, the EulerOS Virtualization for ARM 64 installation on the remote host is affected by the following vulnerabilities : - A flaw was found in the way the Linux kernel
    last seen2020-03-19
    modified2019-05-14
    plugin id124985
    published2019-05-14
    reporterThis script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/124985
    titleEulerOS Virtualization for ARM 64 3.0.1.0 : kernel (EulerOS-SA-2019-1532)

References