Debian DSA-2094-1 : 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-2094. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

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

if (description)
{
  script_id(48387);
  script_version("1.16");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/04");

  script_cve_id("CVE-2009-4895", "CVE-2010-2226", "CVE-2010-2240", "CVE-2010-2248", "CVE-2010-2521", "CVE-2010-2798", "CVE-2010-2803", "CVE-2010-2959", "CVE-2010-3015");
  script_xref(name:"DSA", value:"2094");

  script_name(english:"Debian DSA-2094-1 : 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 or privilege escalation. The Common
Vulnerabilities and Exposures project identifies the following
problems :

  - CVE-2009-4895
    Kyle Bader reported an issue in the tty subsystem that
    allows local users to create a denial of service (NULL
    pointer dereference).

  - CVE-2010-2226
    Dan Rosenberg reported an issue in the xfs filesystem
    that allows local users to copy and read a file owned by
    another user, for which they only have write
    permissions, due to a lack of permission checking in the
    XFS_SWAPEXT ioctl.

  - CVE-2010-2240
    Rafal Wojtczuk reported an issue that allows users to
    obtain escalated privileges. Users must already have
    sufficient privileges to execute or connect clients to
    an Xorg server.

  - CVE-2010-2248
    Suresh Jayaraman discovered an issue in the CIFS
    filesystem. A malicious file server can set an incorrect
    'CountHigh' value, resulting in a denial of service
    (BUG_ON() assertion).

  - CVE-2010-2521
    Neil Brown reported an issue in the NFSv4 server code. A
    malicious client could trigger a denial of service
    (Oops) on a server due to a bug in the read_buf()
    routine.

  - CVE-2010-2798
    Bob Peterson reported an issue in the GFS2 file system.
    A file system user could cause a denial of service
    (Oops) via certain rename operations.

  - CVE-2010-2803
    Kees Cook reported an issue in the DRM (Direct Rendering
    Manager) subsystem. Local users with sufficient
    privileges (local X users or members of the 'video'
    group on a default Debian install) could acquire access
    to sensitive kernel memory.

  - CVE-2010-2959
    Ben Hawkes discovered an issue in the AF_CAN socket
    family. An integer overflow condition may allow local
    users to obtain elevated privileges.

  - CVE-2010-3015
    Toshiyuki Okajima reported an issue in the ext4
    filesystem. Local users could trigger a denial of
    service (BUG assertion) by generating a specific set of
    filesystem operations.

This update also includes fixes a regression introduced by a previous
update. See the referenced Debian bug page for details."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=589179"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2009-4895"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2010-2226"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2010-2240"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2010-2248"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2010-2521"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2010-2798"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2010-2803"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2010-2959"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2010-3015"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.debian.org/security/2010/dsa-2094"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the linux-2.6 and user-mode-linux packages.

For the stable distribution (lenny), this problem has been fixed in
version 2.6.26-24lenny1.

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

                        Debian 5.0 (lenny)     
  user-mode-linux        2.6.26-1um-2+24lenny1  
Updates for arm and mips will be released as they become available."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/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_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:5.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2010/08/19");
  script_set_attribute(attribute:"plugin_publication_date", value:"2010/08/23");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2010-2021 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:"5.0", prefix:"linux-doc-2.6.26", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-486", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-4kc-malta", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-5kc-malta", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-686", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-686-bigmem", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-all", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-all-alpha", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-all-amd64", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-all-armel", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-all-hppa", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-all-i386", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-all-ia64", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-all-mipsel", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-all-powerpc", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-all-s390", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-all-sparc", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-alpha-generic", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-alpha-legacy", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-alpha-smp", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-amd64", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-common", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-common-openvz", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-common-vserver", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-common-xen", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-iop32x", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-itanium", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-ixp4xx", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-mckinley", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-openvz-686", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-openvz-amd64", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-orion5x", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-parisc", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-parisc-smp", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-parisc64", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-parisc64-smp", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-powerpc", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-powerpc-smp", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-powerpc64", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-r5k-cobalt", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-s390", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-s390x", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-sb1-bcm91250a", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-sb1a-bcm91480b", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-sparc64", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-sparc64-smp", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-versatile", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-vserver-686", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-vserver-686-bigmem", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-vserver-amd64", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-vserver-itanium", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-vserver-mckinley", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-vserver-powerpc", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-vserver-powerpc64", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-vserver-s390x", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-vserver-sparc64", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-xen-686", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-headers-2.6.26-2-xen-amd64", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-486", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-4kc-malta", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-5kc-malta", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-686", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-686-bigmem", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-alpha-generic", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-alpha-legacy", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-alpha-smp", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-amd64", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-iop32x", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-itanium", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-ixp4xx", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-mckinley", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-openvz-686", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-openvz-amd64", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-orion5x", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-parisc", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-parisc-smp", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-parisc64", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-parisc64-smp", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-powerpc", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-powerpc-smp", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-powerpc64", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-r5k-cobalt", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-s390", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-s390-tape", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-s390x", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-sb1-bcm91250a", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-sb1a-bcm91480b", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-sparc64", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-sparc64-smp", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-versatile", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-vserver-686", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-vserver-686-bigmem", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-vserver-amd64", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-vserver-itanium", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-vserver-mckinley", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-vserver-powerpc", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-vserver-powerpc64", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-vserver-s390x", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-vserver-sparc64", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-xen-686", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-image-2.6.26-2-xen-amd64", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-libc-dev", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-manual-2.6.26", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-modules-2.6.26-2-xen-686", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-modules-2.6.26-2-xen-amd64", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-patch-debian-2.6.26", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-source-2.6.26", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-support-2.6.26-2", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"linux-tree-2.6.26", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"xen-linux-system-2.6.26-2-xen-686", reference:"2.6.26-24lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"xen-linux-system-2.6.26-2-xen-amd64", reference:"2.6.26-24lenny1")) 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");