Debian DSA-2766-1 : linux-2.6 - privilege escalation/denial of service/information leak

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Debian Security Advisory DSA-2766. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(70200);
  script_version("1.14");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/11");

  script_cve_id("CVE-2013-2141", "CVE-2013-2164", "CVE-2013-2206", "CVE-2013-2232", "CVE-2013-2234", "CVE-2013-2237", "CVE-2013-2239", "CVE-2013-2851", "CVE-2013-2852", "CVE-2013-2888", "CVE-2013-2892");
  script_bugtraq_id(60254, 60375, 60409, 60410, 60715, 60874, 60893, 60953, 60977, 62043, 62049);
  script_xref(name:"DSA", value:"2766");

  script_name(english:"Debian DSA-2766-1 : linux-2.6 - privilege escalation/denial of service/information leak");
  script_summary(english:"Checks dpkg output for the updated package");

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

  - CVE-2013-2141
    Emese Revfy provided a fix for an information leak in
    the tkill and tgkill system calls. A local user on a
    64-bit system may be able to gain access to sensitive
    memory contents.

  - CVE-2013-2164
    Jonathan Salwan reported an information leak in the
    CD-ROM driver. A local user on a system with a
    malfunctioning CD-ROM drive could gain access to
    sensitive memory.

  - CVE-2013-2206
    Karl Heiss reported an issue in the Linux SCTP
    implementation. A remote user could cause a denial of
    service (system crash).

  - CVE-2013-2232
    Dave Jones and Hannes Frederic Sowa resolved an issue in
    the IPv6 subsystem. Local users could cause a denial of
    service by using an AF_INET6 socket to connect to an
    IPv4 destination.

  - CVE-2013-2234
    Mathias Krause reported a memory leak in the
    implementation of PF_KEYv2 sockets. Local users could
    gain access to sensitive kernel memory.

  - CVE-2013-2237
    Nicolas Dichtel reported a memory leak in the
    implementation of PF_KEYv2 sockets. Local users could
    gain access to sensitive kernel memory.

  - CVE-2013-2239
    Jonathan Salwan discovered multiple memory leaks in the
    openvz kernel flavor. Local users could gain access to
    sensitive kernel memory.

  - CVE-2013-2851
    Kees Cook reported an issue in the block subsystem.
    Local users with uid 0 could gain elevated ring 0
    privileges. This is only a security issue for certain
    specially configured systems.

  - CVE-2013-2852
    Kees Cook reported an issue in the b43 network driver
    for certain Broadcom wireless devices. Local users with
    uid 0 could gain elevated ring 0 privileges. This is
    only a security issue for certain specially configured
    systems.

  - CVE-2013-2888
    Kees Cook reported an issue in the HID driver subsystem.
    A local user, with the ability to attach a device, could
    cause a denial of service (system crash).

  - CVE-2013-2892
    Kees Cook reported an issue in the pantherlord HID
    device driver. Local users with the ability to attach a
    device could cause a denial of service or possibly gain
    elevated privileges."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2013-2141"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2013-2164"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2013-2206"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2013-2232"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2013-2234"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2013-2237"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2013-2239"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2013-2851"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2013-2852"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2013-2888"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2013-2892"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/squeeze/linux-2.6"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.debian.org/security/2013/dsa-2766"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the linux-2.6 and user-mode-linux packages.

For the oldstable distribution (squeeze), this problem has been fixed
in version 2.6.32-48squeeze4.

The following matrix lists additional source packages that were
rebuilt for compatibility with or to take advantage of this update :

                          Debian 6.0 (squeeze)     
  user-mode-linux          2.6.32-1um-4+48squeeze4  
Note: Debian carefully tracks all known security issues across every
linux kernel package in all releases under active security support.
However, given the high frequency at which low-severity security
issues are discovered in the kernel and the resource requirements of
doing an update, updates for lower priority issues will normally not
be released for all kernels at the same time. Rather, they will be
released in a staggered or 'leap-frog' fashion."
  );
  script_set_cvss_base_vector("CVSS2#AV:L/AC:M/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  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:debian:debian_linux:linux-2.6");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:6.0");

  script_set_attribute(attribute:"vuln_publication_date", value:"2013/06/07");
  script_set_attribute(attribute:"patch_publication_date", value:"2013/09/27");
  script_set_attribute(attribute:"plugin_publication_date", value:"2013/09/30");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2013-2021 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:"6.0", prefix:"firmware-linux-free", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-base", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-doc-2.6.32", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-headers-2.6.32-5-486", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-headers-2.6.32-5-4kc-malta", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-headers-2.6.32-5-5kc-malta", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-headers-2.6.32-5-686", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-headers-2.6.32-5-686-bigmem", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-headers-2.6.32-5-all", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-headers-2.6.32-5-all-amd64", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-headers-2.6.32-5-all-armel", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-headers-2.6.32-5-all-i386", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-headers-2.6.32-5-all-ia64", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-headers-2.6.32-5-all-mips", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-headers-2.6.32-5-all-mipsel", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-headers-2.6.32-5-all-powerpc", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-headers-2.6.32-5-all-s390", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-headers-2.6.32-5-all-sparc", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-headers-2.6.32-5-amd64", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-headers-2.6.32-5-common", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-headers-2.6.32-5-common-openvz", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-headers-2.6.32-5-common-vserver", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-headers-2.6.32-5-common-xen", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-headers-2.6.32-5-iop32x", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-headers-2.6.32-5-itanium", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-headers-2.6.32-5-ixp4xx", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-headers-2.6.32-5-kirkwood", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-headers-2.6.32-5-mckinley", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-headers-2.6.32-5-openvz-686", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-headers-2.6.32-5-openvz-amd64", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-headers-2.6.32-5-orion5x", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-headers-2.6.32-5-powerpc", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-headers-2.6.32-5-powerpc-smp", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-headers-2.6.32-5-powerpc64", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-headers-2.6.32-5-r4k-ip22", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-headers-2.6.32-5-r5k-cobalt", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-headers-2.6.32-5-r5k-ip32", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-headers-2.6.32-5-s390x", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-headers-2.6.32-5-sb1-bcm91250a", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-headers-2.6.32-5-sb1a-bcm91480b", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-headers-2.6.32-5-sparc64", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-headers-2.6.32-5-sparc64-smp", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-headers-2.6.32-5-versatile", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-headers-2.6.32-5-vserver-686", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-headers-2.6.32-5-vserver-686-bigmem", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-headers-2.6.32-5-vserver-amd64", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-headers-2.6.32-5-vserver-itanium", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-headers-2.6.32-5-vserver-mckinley", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-headers-2.6.32-5-vserver-powerpc", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-headers-2.6.32-5-vserver-powerpc64", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-headers-2.6.32-5-vserver-s390x", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-headers-2.6.32-5-vserver-sparc64", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-headers-2.6.32-5-xen-686", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-headers-2.6.32-5-xen-amd64", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-image-2.6.32-5-486", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-image-2.6.32-5-4kc-malta", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-image-2.6.32-5-5kc-malta", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-image-2.6.32-5-686", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-image-2.6.32-5-686-bigmem", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-image-2.6.32-5-686-bigmem-dbg", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-image-2.6.32-5-amd64", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-image-2.6.32-5-amd64-dbg", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-image-2.6.32-5-iop32x", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-image-2.6.32-5-itanium", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-image-2.6.32-5-ixp4xx", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-image-2.6.32-5-kirkwood", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-image-2.6.32-5-mckinley", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-image-2.6.32-5-openvz-686", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-image-2.6.32-5-openvz-686-dbg", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-image-2.6.32-5-openvz-amd64", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-image-2.6.32-5-openvz-amd64-dbg", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-image-2.6.32-5-orion5x", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-image-2.6.32-5-powerpc", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-image-2.6.32-5-powerpc-smp", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-image-2.6.32-5-powerpc64", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-image-2.6.32-5-r4k-ip22", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-image-2.6.32-5-r5k-cobalt", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-image-2.6.32-5-r5k-ip32", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-image-2.6.32-5-s390x", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-image-2.6.32-5-s390x-tape", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-image-2.6.32-5-sb1-bcm91250a", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-image-2.6.32-5-sb1a-bcm91480b", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-image-2.6.32-5-sparc64", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-image-2.6.32-5-sparc64-smp", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-image-2.6.32-5-versatile", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-image-2.6.32-5-vserver-686", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-image-2.6.32-5-vserver-686-bigmem", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-image-2.6.32-5-vserver-686-bigmem-dbg", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-image-2.6.32-5-vserver-amd64", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-image-2.6.32-5-vserver-amd64-dbg", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-image-2.6.32-5-vserver-itanium", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-image-2.6.32-5-vserver-mckinley", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-image-2.6.32-5-vserver-powerpc", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-image-2.6.32-5-vserver-powerpc64", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-image-2.6.32-5-vserver-s390x", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-image-2.6.32-5-vserver-sparc64", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-image-2.6.32-5-xen-686", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-image-2.6.32-5-xen-686-dbg", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-image-2.6.32-5-xen-amd64", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-image-2.6.32-5-xen-amd64-dbg", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-libc-dev", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-manual-2.6.32", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-patch-debian-2.6.32", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-source-2.6.32", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-support-2.6.32-5", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"linux-tools-2.6.32", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"xen-linux-system-2.6.32-5-xen-686", reference:"2.6.32-48squeeze4")) flag++;
if (deb_check(release:"6.0", prefix:"xen-linux-system-2.6.32-5-xen-amd64", reference:"2.6.32-48squeeze4")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:deb_report_get());
  else security_warning(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");