Vulnerabilities > CVE-2012-4461 - Unspecified vulnerability in Linux Kernel

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Oracle Linux Security Advisory ELSA-2013-2503.
#

include("compat.inc");

if (description)
{
  script_id(68845);
  script_version("1.11");
  script_cvs_date("Date: 2019/09/30 10:58:18");

  script_cve_id("CVE-2012-4398", "CVE-2012-4461", "CVE-2012-4530", "CVE-2013-0190", "CVE-2013-0231");

  script_name(english:"Oracle Linux 5 / 6 : Unbreakable Enterprise kernel (ELSA-2013-2503)");
  script_summary(english:"Checks rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Oracle Linux host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Description of changes:

[2.6.39-300.28.1.el6uek]
- kmod: make __request_module() killable (Oleg Nesterov) [Orabug: 16286305]
   {CVE-2012-4398}
- kmod: introduce call_modprobe() helper (Oleg Nesterov) [Orabug: 16286305]
   {CVE-2012-4398}
- usermodehelper: implement UMH_KILLABLE (Oleg Nesterov) [Orabug: 16286305]
   {CVE-2012-4398}
- usermodehelper: introduce umh_complete(sub_info) (Oleg Nesterov) [Orabug:
   16286305] {CVE-2012-4398}
- KVM: x86: invalid opcode oops on SET_SREGS with OSXSAVE bit set
   (CVE-2012-4461) (Jerry Snitselaar) [Orabug: 16286290] {CVE-2012-4461}
- exec: do not leave bprm->interp on stack (Kees Cook) [Orabug: 16286267]
   {CVE-2012-4530}
- exec: use -ELOOP for max recursion depth (Kees Cook) [Orabug: 16286267]
   {CVE-2012-4530}

[2.6.39-300.27.1.el6uek]
- xen-pciback: rate limit error messages from xen_pcibk_enable_msi{,x}() 
(Jan
   Beulich) [Orabug: 16243736] {CVE-2013-0231}
- Xen: Fix stack corruption in xen_failsafe_callback for 32bit PVOPS guests.
   (Frediano Ziglio) [Orabug: 16274171] {CVE-2013-0190}
- netback: correct netbk_tx_err to handle wrap around. (Ian Campbell) 
[Orabug:
   16243309]
- xen/netback: free already allocated memory on failure in
   xen_netbk_get_requests (Ian Campbell) [Orabug: 16243309]
- xen/netback: don't leak pages on failure in xen_netbk_tx_check_gop. (Ian
   Campbell) [Orabug: 16243309]
- xen/netback: shutdown the ring if it contains garbage. (Ian Campbell)
   [Orabug: 16243309]
- ixgbevf fix typo in Makefile (Maxim Uvarov) [Orabug: 16179639 16168292]"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://oss.oracle.com/pipermail/el-errata/2013-February/003243.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://oss.oracle.com/pipermail/el-errata/2013-February/003244.html"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected unbreakable enterprise kernel packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:C");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-uek");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-uek-debug");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-uek-debug-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-uek-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-uek-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-uek-firmware");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:linux:5");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:linux:6");

  script_set_attribute(attribute:"vuln_publication_date", value:"2013/01/22");
  script_set_attribute(attribute:"patch_publication_date", value:"2013/02/07");
  script_set_attribute(attribute:"plugin_publication_date", value:"2013/07/12");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2013-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Oracle Linux Local Security Checks");

  script_dependencies("ssh_get_info.nasl", "linux_alt_patch_detect.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/OracleLinux", "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);
if (!get_kb_item("Host/OracleLinux")) audit(AUDIT_OS_NOT, "Oracle Linux");
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || !pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux)", string:release)) audit(AUDIT_OS_NOT, "Oracle Linux");
os_ver = pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux) .*release ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Oracle Linux");
os_ver = os_ver[1];
if (! preg(pattern:"^(5|6)([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Oracle Linux 5 / 6", "Oracle Linux " + 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 && "ia64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Oracle Linux", cpu);

if (get_one_kb_item("Host/ksplice/kernel-cves"))
{
  rm_kb_item(name:"Host/uptrack-uname-r");
  cve_list = make_list("CVE-2012-4398", "CVE-2012-4461", "CVE-2012-4530", "CVE-2013-0190", "CVE-2013-0231");  
  if (ksplice_cves_check(cve_list))
  {
    audit(AUDIT_PATCH_INSTALLED, "KSplice hotfix for ELSA-2013-2503");
  }
  else
  {
    __rpm_report = ksplice_reporting_text();
  }
}

kernel_major_minor = get_kb_item("Host/uname/major_minor");
if (empty_or_null(kernel_major_minor)) exit(1, "Unable to determine kernel major-minor level.");
expected_kernel_major_minor = "2.6";
if (kernel_major_minor != expected_kernel_major_minor)
  audit(AUDIT_OS_NOT, "running kernel level " + expected_kernel_major_minor + ", it is running kernel level " + kernel_major_minor);

flag = 0;
if (rpm_exists(release:"EL5", rpm:"kernel-uek-2.6.39") && rpm_check(release:"EL5", reference:"kernel-uek-2.6.39-300.28.1.el5uek")) flag++;
if (rpm_exists(release:"EL5", rpm:"kernel-uek-debug-2.6.39") && rpm_check(release:"EL5", reference:"kernel-uek-debug-2.6.39-300.28.1.el5uek")) flag++;
if (rpm_exists(release:"EL5", rpm:"kernel-uek-debug-devel-2.6.39") && rpm_check(release:"EL5", reference:"kernel-uek-debug-devel-2.6.39-300.28.1.el5uek")) flag++;
if (rpm_exists(release:"EL5", rpm:"kernel-uek-devel-2.6.39") && rpm_check(release:"EL5", reference:"kernel-uek-devel-2.6.39-300.28.1.el5uek")) flag++;
if (rpm_exists(release:"EL5", rpm:"kernel-uek-doc-2.6.39") && rpm_check(release:"EL5", reference:"kernel-uek-doc-2.6.39-300.28.1.el5uek")) flag++;
if (rpm_exists(release:"EL5", rpm:"kernel-uek-firmware-2.6.39") && rpm_check(release:"EL5", reference:"kernel-uek-firmware-2.6.39-300.28.1.el5uek")) flag++;

if (rpm_exists(release:"EL6", rpm:"kernel-uek-2.6.39") && rpm_check(release:"EL6", reference:"kernel-uek-2.6.39-300.28.1.el6uek")) flag++;
if (rpm_exists(release:"EL6", rpm:"kernel-uek-debug-2.6.39") && rpm_check(release:"EL6", reference:"kernel-uek-debug-2.6.39-300.28.1.el6uek")) flag++;
if (rpm_exists(release:"EL6", rpm:"kernel-uek-debug-devel-2.6.39") && rpm_check(release:"EL6", reference:"kernel-uek-debug-devel-2.6.39-300.28.1.el6uek")) flag++;
if (rpm_exists(release:"EL6", rpm:"kernel-uek-devel-2.6.39") && rpm_check(release:"EL6", reference:"kernel-uek-devel-2.6.39-300.28.1.el6uek")) flag++;
if (rpm_exists(release:"EL6", rpm:"kernel-uek-doc-2.6.39") && rpm_check(release:"EL6", reference:"kernel-uek-doc-2.6.39-300.28.1.el6uek")) flag++;
if (rpm_exists(release:"EL6", rpm:"kernel-uek-firmware-2.6.39") && rpm_check(release:"EL6", reference:"kernel-uek-firmware-2.6.39-300.28.1.el6uek")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get());
  else security_warning(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "affected kernel");
}

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-1696-2. 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(64432);
  script_version("1.8");
  script_cvs_date("Date: 2019/09/19 12:54:28");

  script_cve_id("CVE-2012-4461", "CVE-2012-4530", "CVE-2012-5532");
  script_xref(name:"USN", value:"1696-2");

  script_name(english:"Ubuntu 12.04 LTS : linux regression (USN-1696-2)");
  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-1696-1 fixed vulnerabilities in the Linux kernel. Due to an
unrelated regression inotify/fanotify stopped working after upgrading.
This update fixes the problem.

We apologize for the inconvenience.

Jon Howell reported a flaw in the Linux kernel's KVM (Kernel-based
virtual machine) subsystem's handling of the XSAVE feature. On hosts,
using qemu userspace, without the XSAVE feature an unprivileged local
attacker could exploit this flaw to crash the system. (CVE-2012-4461)

A flaw was discovered in the Linux kernel's handling of
script execution when module loading is enabled. A local
attacker could exploit this flaw to cause a leak of kernel
stack contents. (CVE-2012-4530)

Florian Weimer discovered that hypervkvpd, which is
distributed in the Linux kernel, was not correctly
validating source addresses of netlink packets. An untrusted
local user can cause a denial of service by causing
hypervkvpd to exit. (CVE-2012-5532).

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/1696-2/"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:C");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-3.2-generic");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-3.2-generic-pae");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-3.2-highbank");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-image-3.2-virtual");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:12.04:-:lts");

  script_set_attribute(attribute:"vuln_publication_date", value:"2012/12/27");
  script_set_attribute(attribute:"patch_publication_date", value:"2013/02/01");
  script_set_attribute(attribute:"plugin_publication_date", value:"2013/02/04");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"Ubuntu Security Notice (C) 2013-2019 Canonical, Inc. / NASL script (C) 2013-2019 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:"^(12\.04)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 12.04", "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-2012-4461", "CVE-2012-4530", "CVE-2012-5532");
  if (ksplice_cves_check(cve_list))
  {
    audit(AUDIT_PATCH_INSTALLED, "KSplice hotfix for USN-1696-2");
  }
  else
  {
    _ubuntu_report = ksplice_reporting_text();
  }
}

flag = 0;

if (ubuntu_check(osver:"12.04", pkgname:"linux-image-3.2.0-37-generic", pkgver:"3.2.0-37.58")) flag++;
if (ubuntu_check(osver:"12.04", pkgname:"linux-image-3.2.0-37-generic-pae", pkgver:"3.2.0-37.58")) flag++;
if (ubuntu_check(osver:"12.04", pkgname:"linux-image-3.2.0-37-highbank", pkgver:"3.2.0-37.58")) flag++;
if (ubuntu_check(osver:"12.04", pkgname:"linux-image-3.2.0-37-virtual", pkgver:"3.2.0-37.58")) flag++;

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_WARNING,
    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-3.2-generic / linux-image-3.2-generic-pae / etc");
}