Vulnerabilities > CVE-2019-17346 - Improper Input Validation vulnerability in multiple products

047910
CVSS 8.8 - HIGH
Attack vector
LOCAL
Attack complexity
LOW
Privileges required
LOW
Confidentiality impact
HIGH
Integrity impact
HIGH
Availability impact
HIGH
local
low complexity
xen
debian
CWE-20
nessus
NVD
Published: 2019-10-08
Updated: 2023-02-03

Summary

An issue was discovered in Xen through 4.11.x allowing x86 PV guest OS users to cause a denial of service or gain privileges because of an incompatibility between Process Context Identifiers (PCID) and TLB flushes.

Vulnerable Configurations

Part Description Count
OS
Xen
282
OS
Debian
2

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Buffer Overflow via Environment Variables
    This attack pattern involves causing a buffer overflow through manipulation of environment variables. Once the attacker finds that they can modify an environment variable, they may try to overflow associated buffers. This attack leverages implicit trust often placed in environment variables.
  • Server Side Include (SSI) Injection
    An attacker can use Server Side Include (SSI) Injection to send code to a web application that then gets executed by the web server. Doing so enables the attacker to achieve similar results to Cross Site Scripting, viz., arbitrary code execution and information disclosure, albeit on a more limited scale, since the SSI directives are nowhere near as powerful as a full-fledged scripting language. Nonetheless, the attacker can conveniently gain access to sensitive files, such as password files, and execute shell commands.
  • Cross Zone Scripting
    An attacker is able to cause a victim to load content into their web-browser that bypasses security zone controls and gain access to increased privileges to execute scripting code or other web objects such as unsigned ActiveX controls or applets. This is a privilege elevation attack targeted at zone-based web-browser security. In a zone-based model, pages belong to one of a set of zones corresponding to the level of privilege assigned to that page. Pages in an untrusted zone would have a lesser level of access to the system and/or be restricted in the types of executable content it was allowed to invoke. In a cross-zone scripting attack, a page that should be assigned to a less privileged zone is granted the privileges of a more trusted zone. This can be accomplished by exploiting bugs in the browser, exploiting incorrect configuration in the zone controls, through a cross-site scripting attack that causes the attackers' content to be treated as coming from a more trusted page, or by leveraging some piece of system functionality that is accessible from both the trusted and less trusted zone. This attack differs from "Restful Privilege Escalation" in that the latter correlates to the inadequate securing of RESTful access methods (such as HTTP DELETE) on the server, while cross-zone scripting attacks the concept of security zones as implemented by a browser.
  • Cross Site Scripting through Log Files
    An attacker may leverage a system weakness where logs are susceptible to log injection to insert scripts into the system's logs. If these logs are later viewed by an administrator through a thin administrative interface and the log data is not properly HTML encoded before being written to the page, the attackers' scripts stored in the log will be executed in the administrative interface with potentially serious consequences. This attack pattern is really a combination of two other attack patterns: log injection and stored cross site scripting.
  • Command Line Execution through SQL Injection
    An attacker uses standard SQL injection methods to inject data into the command line for execution. This could be done directly through misuse of directives such as MSSQL_xp_cmdshell or indirectly through injection of data into the database that would be interpreted as shell commands. Sometime later, an unscrupulous backend application (or could be part of the functionality of the same application) fetches the injected data stored in the database and uses this data as command line arguments without performing proper validation. The malicious data escapes that data plane by spawning new commands to be executed on the host.

Nessus

  • NASL familyMisc.
    NASL idXEN_SERVER_XSA-292.NASL
    descriptionAccording to its self-reported version number, the Xen hypervisor installed on the remote host is affected by multiple vulnerabilities including denial of service, information disclosure, and privilege escalation. Only x86 systems are affected. Note that Nessus has checked the changeset versions based on the xen.git change log. Nessus did not check guest hardware configurations or if patches were applied manually to the source code before a recompile and reinstall.
    last seen2020-06-01
    modified2020-06-02
    plugin id122875
    published2019-03-15
    reporterThis script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/122875
    titleXen Project Process Context Identifiers TLB Flushing Multiple Vulnerabilities (XSA-292)
    code
    #
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(122875);
  script_version("1.5");
  script_cvs_date("Date: 2019/11/08");

  script_cve_id("CVE-2019-17346");

  script_name(english:"Xen Project Process Context Identifiers TLB Flushing Multiple Vulnerabilities (XSA-292)");
  script_summary(english:"Checks 'xl info' output for the Xen hypervisor version.");

  script_set_attribute(attribute:"synopsis", value:
"The remote Xen hypervisor installation is missing a security update.");
  script_set_attribute(attribute:"description", value:
"According to its self-reported version number, the Xen hypervisor
installed on the remote host is affected by multiple vulnerabilities
including denial of service, information disclosure, and privilege
escalation. Only x86 systems are affected.

Note that Nessus has checked the changeset versions based on the
xen.git change log. Nessus did not check guest hardware configurations
or if patches were applied manually to the source code before a
recompile and reinstall.");
  script_set_attribute(attribute:"see_also", value:"https://xenbits.xen.org/xsa/advisory-292.html");
  script_set_attribute(attribute:"see_also", value:"https://xenbits.xen.org/gitweb/?p=xen.git;a=summary");
  script_set_attribute(attribute:"solution", value:
"Apply the appropriate patch according to the vendor advisory.");
  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:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-17346");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/03/05");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/03/05");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/03/15");

  script_set_attribute(attribute:"potential_vulnerability", value:"true");
  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:xen:xen");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Misc.");

  script_copyright(english:"This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("xen_server_detect.nbin");
  script_require_keys("installed_sw/Xen Hypervisor", "Settings/ParanoidReport");

  exit(0);
}

include("audit.inc");
include("global_settings.inc");
include("install_func.inc");
include("misc_func.inc");

app_name = "Xen Hypervisor";
install  = get_single_install(app_name:app_name);
if (report_paranoia < 2) audit(AUDIT_PARANOID);

version         = install['version'];
display_version = install['display_version'];
path            = install['path'];
managed_status  = install['Managed status'];
changeset       = install['Changeset'];

if (!empty_or_null(changeset))
  display_version += " (changeset " + changeset + ")";

# Installations that are vendor-managed are handled by OS-specific local package checks
if (managed_status == "managed")
  audit(AUDIT_INST_PATH_NOT_VULN, app_name, display_version, path);

fixes['4.7']['fixed_ver']           = '4.7.6';
fixes['4.7']['fixed_ver_display']   = '4.7.6 (changeset 0bdd0db)';
fixes['4.7']['affected_ver_regex']  = '^4\\.7\\.';
fixes['4.7']['affected_changesets'] = make_list("c1f397d", "516671a",
  "384a6dd", "a1500d4", "362cca8", "eeea811", "710cc09", "ab6d56c",
  "4f3858f", "045d4f7", "2b3463f", "efe21ad", "9c82759", "3d3e474",
  "4e69e43", "3d33cc6", "3f7b4ec", "7ba1c7d", "87d5aa4", "9b8375a",
  "da93914", "0aa4696", "f05a33e", "f440b31", "1a90803", "0abc1ae",
  "1fdb25a", "c9641d4", "61c4360", "df66c1c", "59732fd", "3f7fd2b",
  "bcbd8b9", "dfee811", "95ff4e1", "ded2a37", "87dba80", "fe028e6",
  "a51e6a3", "0e66281", "51d9780", "91ca84c", "bce2dd6", "fa807e2",
  "97aff08", "e90e243", "c0e854b", "9858a1f", "a404136", "dc111e9",
  "0873699", "280a556");

fixes['4.10']['fixed_ver']           = '4.10.4';
fixes['4.10']['fixed_ver_display']   = '4.10.4-pre (changeset a595111)';
fixes['4.10']['affected_ver_regex']  = '^4\\.10\\.';
fixes['4.10']['affected_changesets'] = make_list("aae0d18", "631b902",
  "f6f1e94", "b450b20", "dfc7e3c", "382e4a6", "edbc9b0", "edb80d2");

fixes['4.11']['fixed_ver']           = '4.11.2';
fixes['4.11']['fixed_ver_display']   = '4.11.2-pre (changeset 6c197f9)';
fixes['4.11']['affected_ver_regex']  = '^4\\.11\\.';
fixes['4.11']['affected_changesets'] = make_list("7bbd3a5", "92227e2",
  "4835974", "be58f86", "4298abd", "4f785ea", "1028304", "87f51bf",
  "dd492b8", "e2e3a1d", "850ca94", "514dccd", "e202feb", "1986728",
  "2cd833d", "de09411", "dd914e4", "63d7113", "af25f52", "91f2ad7",
  "0b2be0b", "7d1bd98", "d8b2418", "bf608fd");

fix = NULL;
foreach ver_branch (keys(fixes))
{
  if (version =~ fixes[ver_branch]['affected_ver_regex'])
  {
    ret = ver_compare(ver:version, fix:fixes[ver_branch]['fixed_ver']);
    if (ret < 0)
      fix = fixes[ver_branch]['fixed_ver_display'];
    else if (ret == 0)
    {
      if (empty_or_null(changeset))
        fix = fixes[ver_branch]['fixed_ver_display'];
      else
        foreach affected_changeset (fixes[ver_branch]['affected_changesets'])
          if (changeset == affected_changeset)
            fix = fixes[ver_branch]['fixed_ver_display'];
    }
  }
}

if (empty_or_null(fix))
  audit(AUDIT_INST_PATH_NOT_VULN, app_name, display_version, path);

items  = make_array(
  "Installed version", display_version,
  "Fixed version", fix,
  "Path", path
);

order  = make_list("Path", "Installed version", "Fixed version");
report = report_items_str(report_items:items, ordered_fields:order) + '\n';

security_report_v4(port:0, extra:report, severity:SECURITY_HOLE);
  • NASL familySuSE Local Security Checks
    NASL idSUSE_SU-2019-2753-1.NASL
    descriptionThis update for xen to version 4.11.2 fixes the following issues : Security issues fixed : CVE-2019-15890: Fixed a use-after-free in SLiRP networking implementation of QEMU emulator which could have led to Denial of Service (bsc#1149813). CVE-2019-12068: Fixed an issue in lsi which could lead to an infinite loop and denial of service (bsc#1146874). CVE-2019-14378: Fixed a heap buffer overflow in SLiRp networking implementation of QEMU emulator which could have led to execution of arbitrary code with privileges of the QEMU process (bsc#1143797). Other issues fixed: Fixed an HPS bug which did not allow to install Windows Server 2016 with 2 CPUs setting or above (bsc#1137717). Fixed a segmentation fault in Libvrtd during live migration to a VM (bsc#1145774). Fixed an issue where libxenlight could not create new domain (bsc#1131811). Fixed an issue where attached pci devices were lost after reboot (bsc#1129642). Fixed an issue where Xen could not pre-allocate 1 shadow page (bsc#1145240). 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.
    last seen2020-06-01
    modified2020-06-02
    plugin id130197
    published2019-10-24
    reporterThis script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/130197
    titleSUSE SLED12 / SLES12 Security Update : xen (SUSE-SU-2019:2753-1) (MDSUM/RIDL) (MFBDS/RIDL/ZombieLoad) (MLPDS/RIDL) (MSBDS/Fallout)
    code
    #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from SUSE update advisory SUSE-SU-2019:2753-1.
# The text itself is copyright (C) SUSE.
#

include("compat.inc");

if (description)
{
  script_id(130197);
  script_version("1.2");
  script_cvs_date("Date: 2019/12/18");

  script_cve_id("CVE-2018-12126", "CVE-2018-12127", "CVE-2018-12130", "CVE-2019-11091", "CVE-2019-12068", "CVE-2019-14378", "CVE-2019-15890", "CVE-2019-17340", "CVE-2019-17341", "CVE-2019-17342", "CVE-2019-17343", "CVE-2019-17344", "CVE-2019-17345", "CVE-2019-17346", "CVE-2019-17347", "CVE-2019-17348");

  script_name(english:"SUSE SLED12 / SLES12 Security Update : xen (SUSE-SU-2019:2753-1) (MDSUM/RIDL) (MFBDS/RIDL/ZombieLoad) (MLPDS/RIDL) (MSBDS/Fallout)");
  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:
"This update for xen to version 4.11.2 fixes the following issues :

Security issues fixed :

CVE-2019-15890: Fixed a use-after-free in SLiRP networking
implementation of QEMU emulator which could have led to Denial of
Service (bsc#1149813).

CVE-2019-12068: Fixed an issue in lsi which could lead to an infinite
loop and denial of service (bsc#1146874).

CVE-2019-14378: Fixed a heap buffer overflow in SLiRp networking
implementation of QEMU emulator which could have led to execution of
arbitrary code with privileges of the QEMU process (bsc#1143797).

Other issues fixed: Fixed an HPS bug which did not allow to install
Windows Server 2016 with 2 CPUs setting or above (bsc#1137717).

Fixed a segmentation fault in Libvrtd during live migration to a VM
(bsc#1145774).

Fixed an issue where libxenlight could not create new domain
(bsc#1131811).

Fixed an issue where attached pci devices were lost after reboot
(bsc#1129642).

Fixed an issue where Xen could not pre-allocate 1 shadow page
(bsc#1145240).

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=1027519"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1111331"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1126140"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1126141"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1126192"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1126195"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1126196"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1126197"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1126198"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1126201"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1127400"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1129642"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1131811"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1137717"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1138294"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1143797"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1145240"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1145774"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1146874"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1149813"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2018-12126/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2018-12127/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2018-12130/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2019-11091/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2019-12068/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2019-14378/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2019-15890/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2019-17340/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2019-17341/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2019-17342/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2019-17343/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2019-17344/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2019-17345/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2019-17346/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2019-17347/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2019-17348/"
  );
  # https://www.suse.com/support/update/announcement/2019/suse-su-20192753-1/
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?91ab9f99"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"To install this SUSE Security Update use the SUSE recommended
installation methods like YaST online_update or 'zypper patch'.

Alternatively you can run the command listed for your product :

SUSE Linux Enterprise Software Development Kit 12-SP4:zypper in -t
patch SUSE-SLE-SDK-12-SP4-2019-2753=1

SUSE Linux Enterprise Server 12-SP4:zypper in -t patch
SUSE-SLE-SERVER-12-SP4-2019-2753=1

SUSE Linux Enterprise Desktop 12-SP4:zypper in -t patch
SUSE-SLE-DESKTOP-12-SP4-2019-2753=1"
  );
  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:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-17346");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-debugsource");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-doc-html");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-libs-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-tools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-tools-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-tools-domU");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-tools-domU-debuginfo");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:12");

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/05/30");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/10/23");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/10/24");
  script_set_attribute(attribute:"in_the_news", value:"true");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2019 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);
if (cpu >!< "x86_64") audit(AUDIT_ARCH_NOT, "x86_64", cpu);


sp = get_kb_item("Host/SuSE/patchlevel");
if (isnull(sp)) sp = "0";
if (os_ver == "SLES12" && (! preg(pattern:"^(4)$", string:sp))) audit(AUDIT_OS_NOT, "SLES12 SP4", os_ver + " SP" + sp);
if (os_ver == "SLED12" && (! preg(pattern:"^(4)$", string:sp))) audit(AUDIT_OS_NOT, "SLED12 SP4", os_ver + " SP" + sp);


flag = 0;
if (rpm_check(release:"SLES12", sp:"4", cpu:"x86_64", reference:"xen-4.11.2_02-2.14.2")) flag++;
if (rpm_check(release:"SLES12", sp:"4", cpu:"x86_64", reference:"xen-debugsource-4.11.2_02-2.14.2")) flag++;
if (rpm_check(release:"SLES12", sp:"4", cpu:"x86_64", reference:"xen-doc-html-4.11.2_02-2.14.2")) flag++;
if (rpm_check(release:"SLES12", sp:"4", cpu:"x86_64", reference:"xen-libs-32bit-4.11.2_02-2.14.2")) flag++;
if (rpm_check(release:"SLES12", sp:"4", cpu:"x86_64", reference:"xen-libs-4.11.2_02-2.14.2")) flag++;
if (rpm_check(release:"SLES12", sp:"4", cpu:"x86_64", reference:"xen-libs-debuginfo-32bit-4.11.2_02-2.14.2")) flag++;
if (rpm_check(release:"SLES12", sp:"4", cpu:"x86_64", reference:"xen-libs-debuginfo-4.11.2_02-2.14.2")) flag++;
if (rpm_check(release:"SLES12", sp:"4", cpu:"x86_64", reference:"xen-tools-4.11.2_02-2.14.2")) flag++;
if (rpm_check(release:"SLES12", sp:"4", cpu:"x86_64", reference:"xen-tools-debuginfo-4.11.2_02-2.14.2")) flag++;
if (rpm_check(release:"SLES12", sp:"4", cpu:"x86_64", reference:"xen-tools-domU-4.11.2_02-2.14.2")) flag++;
if (rpm_check(release:"SLES12", sp:"4", cpu:"x86_64", reference:"xen-tools-domU-debuginfo-4.11.2_02-2.14.2")) flag++;
if (rpm_check(release:"SLED12", sp:"4", cpu:"x86_64", reference:"xen-4.11.2_02-2.14.2")) flag++;
if (rpm_check(release:"SLED12", sp:"4", cpu:"x86_64", reference:"xen-debugsource-4.11.2_02-2.14.2")) flag++;
if (rpm_check(release:"SLED12", sp:"4", cpu:"x86_64", reference:"xen-libs-32bit-4.11.2_02-2.14.2")) flag++;
if (rpm_check(release:"SLED12", sp:"4", cpu:"x86_64", reference:"xen-libs-4.11.2_02-2.14.2")) flag++;
if (rpm_check(release:"SLED12", sp:"4", cpu:"x86_64", reference:"xen-libs-debuginfo-32bit-4.11.2_02-2.14.2")) flag++;
if (rpm_check(release:"SLED12", sp:"4", cpu:"x86_64", reference:"xen-libs-debuginfo-4.11.2_02-2.14.2")) 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, "xen");
}
  • NASL familySuSE Local Security Checks
    NASL idSUSE_SU-2019-2769-1.NASL
    descriptionThis update for xen fixes the following issues : Security issues fixed : CVE-2019-15890: Fixed a use-after-free in SLiRP networking implementation of QEMU emulator which could have led to Denial of Service (bsc#1149813). CVE-2019-12068: Fixed an issue in lsi which could lead to an infinite loop and denial of service (bsc#1146874). CVE-2019-14378: Fixed a heap buffer overflow in SLiRp networking implementation of QEMU emulator which could have led to execution of arbitrary code with privileges of the QEMU process (bsc#1143797). Other issue fixed: Fixed an issue where libxenlight could not restore domain vsa6535522 on live migration (bsc#1133818). 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.
    last seen2020-06-01
    modified2020-06-02
    plugin id130253
    published2019-10-25
    reporterThis script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/130253
    titleSUSE SLES12 Security Update : xen (SUSE-SU-2019:2769-1) (MDSUM/RIDL) (MFBDS/RIDL/ZombieLoad) (MLPDS/RIDL) (MSBDS/Fallout)
    code
    #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from SUSE update advisory SUSE-SU-2019:2769-1.
# The text itself is copyright (C) SUSE.
#

include("compat.inc");

if (description)
{
  script_id(130253);
  script_version("1.2");
  script_cvs_date("Date: 2019/12/18");

  script_cve_id("CVE-2018-12126", "CVE-2018-12127", "CVE-2018-12130", "CVE-2019-11091", "CVE-2019-12068", "CVE-2019-14378", "CVE-2019-15890", "CVE-2019-17340", "CVE-2019-17341", "CVE-2019-17342", "CVE-2019-17343", "CVE-2019-17344", "CVE-2019-17345", "CVE-2019-17346", "CVE-2019-17347", "CVE-2019-17348");

  script_name(english:"SUSE SLES12 Security Update : xen (SUSE-SU-2019:2769-1) (MDSUM/RIDL) (MFBDS/RIDL/ZombieLoad) (MLPDS/RIDL) (MSBDS/Fallout)");
  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:
"This update for xen fixes the following issues :

Security issues fixed :

CVE-2019-15890: Fixed a use-after-free in SLiRP networking
implementation of QEMU emulator which could have led to Denial of
Service (bsc#1149813).

CVE-2019-12068: Fixed an issue in lsi which could lead to an infinite
loop and denial of service (bsc#1146874).

CVE-2019-14378: Fixed a heap buffer overflow in SLiRp networking
implementation of QEMU emulator which could have led to execution of
arbitrary code with privileges of the QEMU process (bsc#1143797).

Other issue fixed: Fixed an issue where libxenlight could not restore
domain vsa6535522 on live migration (bsc#1133818).

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=1126140"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1126141"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1126192"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1126195"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1126196"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1126197"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1126198"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1126201"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1127400"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1133818"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1143797"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1146874"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1149813"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2018-12126/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2018-12127/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2018-12130/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2019-11091/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2019-12068/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2019-14378/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2019-15890/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2019-17340/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2019-17341/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2019-17342/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2019-17343/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2019-17344/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2019-17345/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2019-17346/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2019-17347/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2019-17348/"
  );
  # https://www.suse.com/support/update/announcement/2019/suse-su-20192769-1/
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?c50006b3"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"To install this SUSE Security Update use the SUSE recommended
installation methods like YaST online_update or 'zypper patch'.

Alternatively you can run the command listed for your product :

SUSE OpenStack Cloud Crowbar 8:zypper in -t patch
SUSE-OpenStack-Cloud-Crowbar-8-2019-2769=1

SUSE OpenStack Cloud 8:zypper in -t patch
SUSE-OpenStack-Cloud-8-2019-2769=1

SUSE Linux Enterprise Server for SAP 12-SP3:zypper in -t patch
SUSE-SLE-SAP-12-SP3-2019-2769=1

SUSE Linux Enterprise Server 12-SP3-LTSS:zypper in -t patch
SUSE-SLE-SERVER-12-SP3-2019-2769=1

SUSE Linux Enterprise Server 12-SP3-BCL:zypper in -t patch
SUSE-SLE-SERVER-12-SP3-BCL-2019-2769=1

SUSE Enterprise Storage 5:zypper in -t patch
SUSE-Storage-5-2019-2769=1

SUSE CaaS Platform 3.0 :

To install this update, use the SUSE CaaS Platform Velum dashboard. It
will inform you if it detects new updates and let you then trigger
updating of the complete cluster in a controlled way.

HPE Helion Openstack 8:zypper in -t patch
HPE-Helion-OpenStack-8-2019-2769=1"
  );
  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:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-17346");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-debugsource");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-doc-html");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-libs-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-tools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-tools-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-tools-domU");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-tools-domU-debuginfo");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:12");

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/05/30");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/10/24");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/10/25");
  script_set_attribute(attribute:"in_the_news", value:"true");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2019 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:"^(SLES12)$", string:os_ver)) audit(AUDIT_OS_NOT, "SUSE 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);
if (cpu >!< "x86_64") audit(AUDIT_ARCH_NOT, "x86_64", 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);


flag = 0;
if (rpm_check(release:"SLES12", sp:"3", cpu:"x86_64", reference:"xen-4.9.4_04-3.56.2")) flag++;
if (rpm_check(release:"SLES12", sp:"3", cpu:"x86_64", reference:"xen-debugsource-4.9.4_04-3.56.2")) flag++;
if (rpm_check(release:"SLES12", sp:"3", cpu:"x86_64", reference:"xen-doc-html-4.9.4_04-3.56.2")) flag++;
if (rpm_check(release:"SLES12", sp:"3", cpu:"x86_64", reference:"xen-libs-32bit-4.9.4_04-3.56.2")) flag++;
if (rpm_check(release:"SLES12", sp:"3", cpu:"x86_64", reference:"xen-libs-4.9.4_04-3.56.2")) flag++;
if (rpm_check(release:"SLES12", sp:"3", cpu:"x86_64", reference:"xen-libs-debuginfo-32bit-4.9.4_04-3.56.2")) flag++;
if (rpm_check(release:"SLES12", sp:"3", cpu:"x86_64", reference:"xen-libs-debuginfo-4.9.4_04-3.56.2")) flag++;
if (rpm_check(release:"SLES12", sp:"3", cpu:"x86_64", reference:"xen-tools-4.9.4_04-3.56.2")) flag++;
if (rpm_check(release:"SLES12", sp:"3", cpu:"x86_64", reference:"xen-tools-debuginfo-4.9.4_04-3.56.2")) flag++;
if (rpm_check(release:"SLES12", sp:"3", cpu:"x86_64", reference:"xen-tools-domU-4.9.4_04-3.56.2")) flag++;
if (rpm_check(release:"SLES12", sp:"3", cpu:"x86_64", reference:"xen-tools-domU-debuginfo-4.9.4_04-3.56.2")) flag++;
if (rpm_check(release:"SLES12", sp:"3", cpu:"x86_64", reference:"xen-4.9.4_04-3.56.2")) flag++;
if (rpm_check(release:"SLES12", sp:"3", cpu:"x86_64", reference:"xen-debugsource-4.9.4_04-3.56.2")) flag++;
if (rpm_check(release:"SLES12", sp:"3", cpu:"x86_64", reference:"xen-doc-html-4.9.4_04-3.56.2")) flag++;
if (rpm_check(release:"SLES12", sp:"3", cpu:"x86_64", reference:"xen-libs-32bit-4.9.4_04-3.56.2")) flag++;
if (rpm_check(release:"SLES12", sp:"3", cpu:"x86_64", reference:"xen-libs-4.9.4_04-3.56.2")) flag++;
if (rpm_check(release:"SLES12", sp:"3", cpu:"x86_64", reference:"xen-libs-debuginfo-32bit-4.9.4_04-3.56.2")) flag++;
if (rpm_check(release:"SLES12", sp:"3", cpu:"x86_64", reference:"xen-libs-debuginfo-4.9.4_04-3.56.2")) flag++;
if (rpm_check(release:"SLES12", sp:"3", cpu:"x86_64", reference:"xen-tools-4.9.4_04-3.56.2")) flag++;
if (rpm_check(release:"SLES12", sp:"3", cpu:"x86_64", reference:"xen-tools-debuginfo-4.9.4_04-3.56.2")) flag++;
if (rpm_check(release:"SLES12", sp:"3", cpu:"x86_64", reference:"xen-tools-domU-4.9.4_04-3.56.2")) flag++;
if (rpm_check(release:"SLES12", sp:"3", cpu:"x86_64", reference:"xen-tools-domU-debuginfo-4.9.4_04-3.56.2")) 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, "xen");
}
  • NASL familyDebian Local Security Checks
    NASL idDEBIAN_DSA-4602.NASL
    descriptionMultiple vulnerabilities have been discovered in the Xen hypervisor, which could result in denial of service, guest-to-host privilege escalation or information leaks. In addition this update provides mitigations for the
    last seen2020-06-01
    modified2020-06-02
    plugin id132875
    published2020-01-15
    reporterThis script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/132875
    titleDebian DSA-4602-1 : xen - security update (MDSUM/RIDL) (MFBDS/RIDL/ZombieLoad) (MLPDS/RIDL) (MSBDS/Fallout)
    code
    #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Debian Security Advisory DSA-4602. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(132875);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/07/10");

  script_cve_id("CVE-2018-12126", "CVE-2018-12127", "CVE-2018-12130", "CVE-2018-12207", "CVE-2019-11091", "CVE-2019-11135", "CVE-2019-17340", "CVE-2019-17341", "CVE-2019-17342", "CVE-2019-17343", "CVE-2019-17344", "CVE-2019-17345", "CVE-2019-17346", "CVE-2019-17347", "CVE-2019-17348", "CVE-2019-17349", "CVE-2019-17350", "CVE-2019-18420", "CVE-2019-18421", "CVE-2019-18422", "CVE-2019-18423", "CVE-2019-18424", "CVE-2019-18425", "CVE-2019-19577", "CVE-2019-19578", "CVE-2019-19579", "CVE-2019-19580", "CVE-2019-19581", "CVE-2019-19582", "CVE-2019-19583");
  script_xref(name:"DSA", value:"4602");
  script_xref(name:"IAVB", value:"2019-B-0091-S");

  script_name(english:"Debian DSA-4602-1 : xen - security update (MDSUM/RIDL) (MFBDS/RIDL/ZombieLoad) (MLPDS/RIDL) (MSBDS/Fallout)");
  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:
"Multiple vulnerabilities have been discovered in the Xen hypervisor,
which could result in denial of service, guest-to-host privilege
escalation or information leaks.

In addition this update provides mitigations for the 'TSX Asynchronous
Abort'speculative side channel attack. For additional information
please refer to https://xenbits.xen.org/xsa/advisory-305.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://xenbits.xen.org/xsa/advisory-305.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/source-package/xen"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/stretch/xen"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/buster/xen"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.debian.org/security/2020/dsa-4602"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the xen packages.

For the oldstable distribution (stretch), these problems have been
fixed in version 4.8.5.final+shim4.10.4-1+deb9u12. Note that this will
be the last security update for Xen in the oldstable distribution;
upstream support for the 4.8.x branch ended by the end of December
2019. If you rely on security support for your Xen installation an
update to the stable distribution (buster) is recommended.

For the stable distribution (buster), these problems have been fixed
in version 4.11.3+24-g14b62ab3e5-1~deb10u1."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/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:U/RL:O/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:xen");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:10.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:9.0");

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/05/30");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/01/13");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/01/15");
  script_set_attribute(attribute:"in_the_news", value:"true");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2020 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:"10.0", prefix:"libxen-dev", reference:"4.11.3+24-g14b62ab3e5-1~deb10u1")) flag++;
if (deb_check(release:"10.0", prefix:"libxencall1", reference:"4.11.3+24-g14b62ab3e5-1~deb10u1")) flag++;
if (deb_check(release:"10.0", prefix:"libxendevicemodel1", reference:"4.11.3+24-g14b62ab3e5-1~deb10u1")) flag++;
if (deb_check(release:"10.0", prefix:"libxenevtchn1", reference:"4.11.3+24-g14b62ab3e5-1~deb10u1")) flag++;
if (deb_check(release:"10.0", prefix:"libxenforeignmemory1", reference:"4.11.3+24-g14b62ab3e5-1~deb10u1")) flag++;
if (deb_check(release:"10.0", prefix:"libxengnttab1", reference:"4.11.3+24-g14b62ab3e5-1~deb10u1")) flag++;
if (deb_check(release:"10.0", prefix:"libxenmisc4.11", reference:"4.11.3+24-g14b62ab3e5-1~deb10u1")) flag++;
if (deb_check(release:"10.0", prefix:"libxenstore3.0", reference:"4.11.3+24-g14b62ab3e5-1~deb10u1")) flag++;
if (deb_check(release:"10.0", prefix:"libxentoolcore1", reference:"4.11.3+24-g14b62ab3e5-1~deb10u1")) flag++;
if (deb_check(release:"10.0", prefix:"libxentoollog1", reference:"4.11.3+24-g14b62ab3e5-1~deb10u1")) flag++;
if (deb_check(release:"10.0", prefix:"xen-doc", reference:"4.11.3+24-g14b62ab3e5-1~deb10u1")) flag++;
if (deb_check(release:"10.0", prefix:"xen-hypervisor-4.11-amd64", reference:"4.11.3+24-g14b62ab3e5-1~deb10u1")) flag++;
if (deb_check(release:"10.0", prefix:"xen-hypervisor-4.11-arm64", reference:"4.11.3+24-g14b62ab3e5-1~deb10u1")) flag++;
if (deb_check(release:"10.0", prefix:"xen-hypervisor-4.11-armhf", reference:"4.11.3+24-g14b62ab3e5-1~deb10u1")) flag++;
if (deb_check(release:"10.0", prefix:"xen-hypervisor-common", reference:"4.11.3+24-g14b62ab3e5-1~deb10u1")) flag++;
if (deb_check(release:"10.0", prefix:"xen-system-amd64", reference:"4.11.3+24-g14b62ab3e5-1~deb10u1")) flag++;
if (deb_check(release:"10.0", prefix:"xen-system-arm64", reference:"4.11.3+24-g14b62ab3e5-1~deb10u1")) flag++;
if (deb_check(release:"10.0", prefix:"xen-system-armhf", reference:"4.11.3+24-g14b62ab3e5-1~deb10u1")) flag++;
if (deb_check(release:"10.0", prefix:"xen-utils-4.11", reference:"4.11.3+24-g14b62ab3e5-1~deb10u1")) flag++;
if (deb_check(release:"10.0", prefix:"xen-utils-common", reference:"4.11.3+24-g14b62ab3e5-1~deb10u1")) flag++;
if (deb_check(release:"10.0", prefix:"xenstore-utils", reference:"4.11.3+24-g14b62ab3e5-1~deb10u1")) flag++;
if (deb_check(release:"9.0", prefix:"libxen-4.8", reference:"4.8.5.final+shim4.10.4-1+deb9u12")) flag++;
if (deb_check(release:"9.0", prefix:"libxen-dev", reference:"4.8.5.final+shim4.10.4-1+deb9u12")) flag++;
if (deb_check(release:"9.0", prefix:"libxenstore3.0", reference:"4.8.5.final+shim4.10.4-1+deb9u12")) flag++;
if (deb_check(release:"9.0", prefix:"xen-hypervisor-4.8-amd64", reference:"4.8.5.final+shim4.10.4-1+deb9u12")) flag++;
if (deb_check(release:"9.0", prefix:"xen-hypervisor-4.8-arm64", reference:"4.8.5.final+shim4.10.4-1+deb9u12")) flag++;
if (deb_check(release:"9.0", prefix:"xen-hypervisor-4.8-armhf", reference:"4.8.5.final+shim4.10.4-1+deb9u12")) flag++;
if (deb_check(release:"9.0", prefix:"xen-system-amd64", reference:"4.8.5.final+shim4.10.4-1+deb9u12")) flag++;
if (deb_check(release:"9.0", prefix:"xen-system-arm64", reference:"4.8.5.final+shim4.10.4-1+deb9u12")) flag++;
if (deb_check(release:"9.0", prefix:"xen-system-armhf", reference:"4.8.5.final+shim4.10.4-1+deb9u12")) flag++;
if (deb_check(release:"9.0", prefix:"xen-utils-4.8", reference:"4.8.5.final+shim4.10.4-1+deb9u12")) flag++;
if (deb_check(release:"9.0", prefix:"xen-utils-common", reference:"4.8.5.final+shim4.10.4-1+deb9u12")) flag++;
if (deb_check(release:"9.0", prefix:"xenstore-utils", reference:"4.8.5.final+shim4.10.4-1+deb9u12")) 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 familySuSE Local Security Checks
    NASL idSUSE_SU-2019-2783-1.NASL
    descriptionThis update for xen fixes the following issues : CVE-2019-15890: Fixed a use-after-free in SLiRP networking implementation of QEMU emulator which could have led to Denial of Service (bsc#1149813). CVE-2019-12068: Fixed an issue in lsi which could lead to an infinite loop and denial of service (bsc#1146874). CVE-2019-14378: Fixed a heap buffer overflow in SLiRp networking implementation of QEMU emulator which could have led to execution of arbitrary code with privileges of the QEMU process (bsc#1143797). 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.
    last seen2020-06-01
    modified2020-06-02
    plugin id130343
    published2019-10-28
    reporterThis script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/130343
    titleSUSE SLES12 Security Update : xen (SUSE-SU-2019:2783-1)
    code
    #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from SUSE update advisory SUSE-SU-2019:2783-1.
# The text itself is copyright (C) SUSE.
#

include("compat.inc");

if (description)
{
  script_id(130343);
  script_version("1.2");
  script_cvs_date("Date: 2019/12/17");

  script_cve_id("CVE-2019-12068", "CVE-2019-14378", "CVE-2019-15890", "CVE-2019-17340", "CVE-2019-17341", "CVE-2019-17342", "CVE-2019-17343", "CVE-2019-17344", "CVE-2019-17346", "CVE-2019-17347", "CVE-2019-17348");

  script_name(english:"SUSE SLES12 Security Update : xen (SUSE-SU-2019:2783-1)");
  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:
"This update for xen fixes the following issues :

CVE-2019-15890: Fixed a use-after-free in SLiRP networking
implementation of QEMU emulator which could have led to Denial of
Service (bsc#1149813).

CVE-2019-12068: Fixed an issue in lsi which could lead to an infinite
loop and denial of service (bsc#1146874).

CVE-2019-14378: Fixed a heap buffer overflow in SLiRp networking
implementation of QEMU emulator which could have led to execution of
arbitrary code with privileges of the QEMU process (bsc#1143797).

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=1126140"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1126141"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1126192"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1126195"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1126196"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1126198"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1126201"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1127400"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1143797"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1146874"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=1149813"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2019-12068/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2019-14378/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2019-15890/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2019-17340/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2019-17341/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2019-17342/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2019-17343/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2019-17344/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2019-17346/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2019-17347/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2019-17348/"
  );
  # https://www.suse.com/support/update/announcement/2019/suse-su-20192783-1/
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?bb6ba1ab"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"To install this SUSE Security Update use the SUSE recommended
installation methods like YaST online_update or 'zypper patch'.

Alternatively you can run the command listed for your product :

SUSE OpenStack Cloud 7:zypper in -t patch
SUSE-OpenStack-Cloud-7-2019-2783=1

SUSE Linux Enterprise Server for SAP 12-SP2:zypper in -t patch
SUSE-SLE-SAP-12-SP2-2019-2783=1

SUSE Linux Enterprise Server 12-SP2-LTSS:zypper in -t patch
SUSE-SLE-SERVER-12-SP2-2019-2783=1

SUSE Linux Enterprise Server 12-SP2-BCL:zypper in -t patch
SUSE-SLE-SERVER-12-SP2-BCL-2019-2783=1

SUSE Enterprise Storage 4:zypper in -t patch
SUSE-Storage-4-2019-2783=1"
  );
  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:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-17346");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-debugsource");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-doc-html");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-libs-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-tools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-tools-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-tools-domU");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:xen-tools-domU-debuginfo");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:12");

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/07/29");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/10/25");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/10/28");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2019 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:"^(SLES12)$", string:os_ver)) audit(AUDIT_OS_NOT, "SUSE 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);
if (cpu >!< "x86_64") audit(AUDIT_ARCH_NOT, "x86_64", cpu);


sp = get_kb_item("Host/SuSE/patchlevel");
if (isnull(sp)) sp = "0";
if (os_ver == "SLES12" && (! preg(pattern:"^(2)$", string:sp))) audit(AUDIT_OS_NOT, "SLES12 SP2", os_ver + " SP" + sp);


flag = 0;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"xen-4.7.6_06-43.54.2")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"xen-debugsource-4.7.6_06-43.54.2")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"xen-doc-html-4.7.6_06-43.54.2")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"xen-libs-32bit-4.7.6_06-43.54.2")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"xen-libs-4.7.6_06-43.54.2")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"xen-libs-debuginfo-32bit-4.7.6_06-43.54.2")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"xen-libs-debuginfo-4.7.6_06-43.54.2")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"xen-tools-4.7.6_06-43.54.2")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"xen-tools-debuginfo-4.7.6_06-43.54.2")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"xen-tools-domU-4.7.6_06-43.54.2")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"xen-tools-domU-debuginfo-4.7.6_06-43.54.2")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"xen-4.7.6_06-43.54.2")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"xen-debugsource-4.7.6_06-43.54.2")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"xen-doc-html-4.7.6_06-43.54.2")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"xen-libs-32bit-4.7.6_06-43.54.2")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"xen-libs-4.7.6_06-43.54.2")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"xen-libs-debuginfo-32bit-4.7.6_06-43.54.2")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"xen-libs-debuginfo-4.7.6_06-43.54.2")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"xen-tools-4.7.6_06-43.54.2")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"xen-tools-debuginfo-4.7.6_06-43.54.2")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"xen-tools-domU-4.7.6_06-43.54.2")) flag++;
if (rpm_check(release:"SLES12", sp:"2", cpu:"x86_64", reference:"xen-tools-domU-debuginfo-4.7.6_06-43.54.2")) 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, "xen");
}

References