Vulnerabilities > CVE-2009-4031 - Improper Input Validation vulnerability in Linux Kernel

#%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Red Hat Security Advisory RHSA-2009:1659. The text 
# itself is copyright (C) Red Hat, Inc.
#

include("compat.inc");

if (description)
{
  script_id(63909);
  script_version("1.12");
  script_cvs_date("Date: 2019/10/25 13:36:14");

  script_cve_id("CVE-2009-4031");
  script_xref(name:"RHSA", value:"2009:1659");

  script_name(english:"RHEL 5 : kvm (RHSA-2009:1659)");
  script_summary(english:"Checks the rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Red Hat host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Updated kvm packages that fix one security issue and several bugs are
now available for Red Hat Enterprise Linux 5.

This update has been rated as having moderate security impact by the
Red Hat Security Response Team.

KVM (Kernel-based Virtual Machine) is a full virtualization solution
for Linux on AMD64 and Intel 64 systems. KVM is a Linux kernel module
built for the standard Red Hat Enterprise Linux kernel.

On x86 platforms, the do_insn_fetch() function did not limit the
amount of instruction bytes fetched per instruction. Users in guest
operating systems could leverage this flaw to cause large latencies on
SMP hosts that could lead to a local denial of service on the host
operating system. This update fixes this issue by imposing the
architecturally-defined 15 byte length limit for instructions.
(CVE-2009-4031)

This update also fixes the following bugs :

* performance problems occurred when using the qcow2 image format with
the qemu-kvm -drive 'cache=none' option (the default setting when not
specified otherwise). This could cause guest operating system
installations to take hours. With this update, performance patches
have been backported so that using the qcow2 image format with the
'cache=none' option no longer causes performance issues. (BZ#520693)

* when using the virtual vm8086 mode, bugs in the emulated hardware
task switching implementation may have, in some situations, caused
older guest operating systems to malfunction. (BZ#532031)

* Windows Server 2003 guests (32-bit) with more than 4GB of memory may
have crashed during reboot when using the default qemu-kvm CPU
settings. (BZ#532043)

* with Red Hat Enterprise Virtualization, guests continued to run
after encountering disk read errors. This could have led to their file
systems becoming corrupted (but not the host's), notably in
environments that use networked storage. With this update, the
qemu-kvm -drive 'werror=stop' option now applies not only to write
errors but also to read errors: When using this option, guests will
pause on disk read and write errors.

By default, guests managed by Red Hat Enterprise Virtualization use
the 'werror=stop' option. This option is not used by default for
guests managed by libvirt. (BZ#537334, BZ#540406)

* the para-virtualized block driver (virtio-blk) silently ignored read
errors when accessing disk images. With this update, the driver
correctly signals the read error to the guest. (BZ#537334)

All KVM users should upgrade to these updated packages, which contain
backported patches to resolve these issues. Note: The procedure in the
Solution section must be performed before this update will take
effect."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/security/cve/cve-2009-4031"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://access.redhat.com/errata/RHSA-2009:1659"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C");
  script_cwe_id(20);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kmod-kvm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kvm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kvm-qemu-img");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:kvm-tools");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:5");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:5.4");

  script_set_attribute(attribute:"vuln_publication_date", value:"2009/11/29");
  script_set_attribute(attribute:"patch_publication_date", value:"2009/12/09");
  script_set_attribute(attribute:"plugin_publication_date", value:"2013/01/24");
  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:"Red Hat Local Security Checks");

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

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("misc_func.inc");
include("rpm.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) || "Red Hat" >!< release) audit(AUDIT_OS_NOT, "Red Hat");
os_ver = pregmatch(pattern: "Red Hat Enterprise Linux.*release ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Red Hat");
os_ver = os_ver[1];
if (! preg(pattern:"^5([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Red Hat 5.x", "Red Hat " + 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$" && "s390" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Red Hat", cpu);
if ("x86_64" >!< cpu) audit(AUDIT_ARCH_NOT, "x86_64", cpu);

yum_updateinfo = get_kb_item("Host/RedHat/yum-updateinfo");
if (!empty_or_null(yum_updateinfo)) 
{
  rhsa = "RHSA-2009:1659";
  yum_report = redhat_generate_yum_updateinfo_report(rhsa:rhsa);
  if (!empty_or_null(yum_report))
  {
    security_report_v4(
      port       : 0,
      severity   : SECURITY_HOLE,
      extra      : yum_report 
    );
    exit(0);
  }
  else
  {
    audit_message = "affected by Red Hat security advisory " + rhsa;
    audit(AUDIT_OS_NOT, audit_message);
  }
}
else
{
  flag = 0;
  if (rpm_check(release:"RHEL5", cpu:"x86_64", reference:"kmod-kvm-83-105.el5_4.13")) flag++;

  if (rpm_check(release:"RHEL5", cpu:"x86_64", reference:"kvm-83-105.el5_4.13")) flag++;

  if (rpm_check(release:"RHEL5", cpu:"x86_64", reference:"kvm-qemu-img-83-105.el5_4.13")) flag++;

  if (rpm_check(release:"RHEL5", cpu:"x86_64", reference:"kvm-tools-83-105.el5_4.13")) flag++;


  if (flag)
  {
    security_report_v4(
      port       : 0,
      severity   : SECURITY_HOLE,
      extra      : rpm_report_get() + redhat_report_package_caveat()
    );
    exit(0);
  }
  else
  {
    tested = pkg_tests_get();
    if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
    else audit(AUDIT_PACKAGE_NOT_INSTALLED, "kmod-kvm / kvm / kvm-qemu-img / kvm-tools");
  }
}

#%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from openSUSE Security Update kernel-2146.
#
# The text description of this plugin is (C) SUSE LLC.
#

include("compat.inc");

if (description)
{
  script_id(45128);
  script_version("1.9");
  script_cvs_date("Date: 2019/10/25 13:36:38");

  script_cve_id("CVE-2009-4031", "CVE-2010-0410", "CVE-2010-0415", "CVE-2010-0622", "CVE-2010-0623");

  script_name(english:"openSUSE Security Update : kernel (kernel-2146)");
  script_summary(english:"Check for the kernel-2146 patch");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote openSUSE host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"This update of the openSUSE 11.2 kernel contains a lot of bug and
security fixes.

Following security issues were fixed: CVE-2010-0622: The wake_futex_pi
function in kernel/futex.c in the Linux kernel does not properly
handle certain unlock operations for a Priority Inheritance (PI)
futex, which allows local users to cause a denial of service (OOPS)
and possibly have unspecified other impact via vectors involving
modification of the futex value from user space.

CVE-2010-0623: The futex_lock_pi function in kernel/futex.c in the
Linux kernel does not properly manage a certain reference count, which
allows local users to cause a denial of service (OOPS) via vectors
involving an unmount of an ext3 filesystem.

CVE-2010-0415: The do_pages_move function in mm/migrate.c in the Linux
kernel does not validate node values, which allows local users to read
arbitrary kernel memory locations, cause a denial of service (OOPS),
and possibly have unspecified other impact by specifying a node that
is not part of the kernel's node set.

CVE-2010-0410: drivers/connector/connector.c in the Linux kernel
allows local users to cause a denial of service (memory consumption
and system crash) by sending the kernel many NETLINK_CONNECTOR
messages.

CVE-2009-4031: The do_insn_fetch function in arch/x86/kvm/emulate.c in
the x86 emulator in the KVM subsystem in the Linux kernel tries to
interpret instructions that contain too many bytes to be valid, which
allows guest OS users to cause a denial of service (increased
scheduling latency) on the host OS via unspecified manipulations
related to SMP support.

This update also contains a large rollup of fixes for the rt2860 and
rt3090 wireless drivers from the mainline kernel."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=474773"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=492961"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=510449"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=544760"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=555747"
  );
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    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=558269"
  );
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    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=561078"
  );
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    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=565962"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=566634"
  );
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    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=568319"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=570314"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=574654"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=576927"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=577747"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=577753"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=578064"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=578222"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=578550"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=578708"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=579076"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=579219"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=579439"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=579989"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=580799"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=581271"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=581718"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=582552"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=582907"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=584320"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected kernel packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A: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_cwe_id(20, 399);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:kernel-debug");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:kernel-debug-base");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:kernel-debug-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:kernel-default");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:kernel-default-base");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:kernel-default-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:kernel-desktop");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:kernel-desktop-base");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:kernel-desktop-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:kernel-pae");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:kernel-pae-base");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:kernel-pae-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:kernel-source");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:kernel-source-vanilla");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:kernel-syms");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:kernel-trace");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:kernel-trace-base");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:kernel-trace-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:kernel-vanilla");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:kernel-vanilla-base");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:kernel-vanilla-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:kernel-xen");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:kernel-xen-base");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:kernel-xen-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:preload-kmp-default");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:preload-kmp-desktop");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:11.2");

  script_set_attribute(attribute:"patch_publication_date", value:"2010/03/17");
  script_set_attribute(attribute:"plugin_publication_date", value:"2010/03/23");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2010-2019 Tenable Network Security, Inc.");
  script_family(english:"SuSE Local Security Checks");

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

  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, "openSUSE");
if (release !~ "^(SUSE11\.2)$") audit(AUDIT_OS_RELEASE_NOT, "openSUSE", "11.2", release);
if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

ourarch = get_kb_item("Host/cpu");
if (!ourarch) audit(AUDIT_UNKNOWN_ARCH);
if (ourarch !~ "^(i586|i686|x86_64)$") audit(AUDIT_ARCH_NOT, "i586 / i686 / x86_64", ourarch);

flag = 0;

if ( rpm_check(release:"SUSE11.2", reference:"kernel-debug-2.6.31.12-0.2.1") ) flag++;
if ( rpm_check(release:"SUSE11.2", reference:"kernel-debug-base-2.6.31.12-0.2.1") ) flag++;
if ( rpm_check(release:"SUSE11.2", reference:"kernel-debug-devel-2.6.31.12-0.2.1") ) flag++;
if ( rpm_check(release:"SUSE11.2", reference:"kernel-default-2.6.31.12-0.2.1") ) flag++;
if ( rpm_check(release:"SUSE11.2", reference:"kernel-default-base-2.6.31.12-0.2.1") ) flag++;
if ( rpm_check(release:"SUSE11.2", reference:"kernel-default-devel-2.6.31.12-0.2.1") ) flag++;
if ( rpm_check(release:"SUSE11.2", reference:"kernel-desktop-2.6.31.12-0.2.1") ) flag++;
if ( rpm_check(release:"SUSE11.2", reference:"kernel-desktop-base-2.6.31.12-0.2.1") ) flag++;
if ( rpm_check(release:"SUSE11.2", reference:"kernel-desktop-devel-2.6.31.12-0.2.1") ) flag++;
if ( rpm_check(release:"SUSE11.2", reference:"kernel-pae-2.6.31.12-0.2.1") ) flag++;
if ( rpm_check(release:"SUSE11.2", reference:"kernel-pae-base-2.6.31.12-0.2.1") ) flag++;
if ( rpm_check(release:"SUSE11.2", reference:"kernel-pae-devel-2.6.31.12-0.2.1") ) flag++;
if ( rpm_check(release:"SUSE11.2", reference:"kernel-source-2.6.31.12-0.2.1") ) flag++;
if ( rpm_check(release:"SUSE11.2", reference:"kernel-source-vanilla-2.6.31.12-0.2.1") ) flag++;
if ( rpm_check(release:"SUSE11.2", reference:"kernel-syms-2.6.31.12-0.2.1") ) flag++;
if ( rpm_check(release:"SUSE11.2", reference:"kernel-trace-2.6.31.12-0.2.1") ) flag++;
if ( rpm_check(release:"SUSE11.2", reference:"kernel-trace-base-2.6.31.12-0.2.1") ) flag++;
if ( rpm_check(release:"SUSE11.2", reference:"kernel-trace-devel-2.6.31.12-0.2.1") ) flag++;
if ( rpm_check(release:"SUSE11.2", reference:"kernel-vanilla-2.6.31.12-0.2.1") ) flag++;
if ( rpm_check(release:"SUSE11.2", reference:"kernel-vanilla-base-2.6.31.12-0.2.1") ) flag++;
if ( rpm_check(release:"SUSE11.2", reference:"kernel-vanilla-devel-2.6.31.12-0.2.1") ) flag++;
if ( rpm_check(release:"SUSE11.2", reference:"kernel-xen-2.6.31.12-0.2.1") ) flag++;
if ( rpm_check(release:"SUSE11.2", reference:"kernel-xen-base-2.6.31.12-0.2.1") ) flag++;
if ( rpm_check(release:"SUSE11.2", reference:"kernel-xen-devel-2.6.31.12-0.2.1") ) flag++;
if ( rpm_check(release:"SUSE11.2", reference:"preload-kmp-default-1.1_2.6.31.12_0.2-6.9.15") ) flag++;
if ( rpm_check(release:"SUSE11.2", reference:"preload-kmp-desktop-1.1_2.6.31.12_0.2-6.9.15") ) 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-debug / kernel-debug-base / kernel-debug-devel / etc");
}