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nessusUbuntu Security Notice (C) 2012-2019 Canonical, Inc. / NASL script (C) 2012-2019 and is owned by Tenable, Inc. or an Affiliate thereof.UBUNTU_USN-1426-1.NASL
HistoryApr 25, 2012 - 12:00 a.m.

Ubuntu 10.04 LTS : linux-ec2 vulnerabilities (USN-1426-1)

2012-04-2500:00:00
Ubuntu Security Notice (C) 2012-2019 Canonical, Inc. / NASL script (C) 2012-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
29

7.2 High

CVSS2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:L/Au:N/C:C/I:C/A:C

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

0.002 Low

EPSS

Percentile

56.4%

Sasha Levin discovered a flaw in the permission checking for device assignments requested via the kvm ioctl in the Linux kernel. A local user could use this flaw to crash the system causing a denial of service. (CVE-2011-4347)

Stephan Barwolf discovered a flaw in the KVM (kernel-based virtual machine) subsystem of the Linux kernel. A local unprivileged user can crash use this flaw to crash VMs causing a deny of service.
(CVE-2012-0045)

A flaw was discovered in the Linux kernel’s cifs file system. An unprivileged local user could exploit this flaw to crash the system leading to a denial of service. (CVE-2012-1090)

H. Peter Anvin reported a flaw in the Linux kernel that could crash the system. A local user could exploit this flaw to crash the system.
(CVE-2012-1097)

Tetsuo Handa reported a flaw in the OOM (out of memory) killer of the Linux kernel. A local unprivileged user can exploit this flaw to cause system unstability and denial of services. (CVE-2012-4398).

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.

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-1426-1. 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(58871);
  script_version("1.14");
  script_cvs_date("Date: 2019/09/19 12:54:27");

  script_cve_id("CVE-2011-4347", "CVE-2012-0045", "CVE-2012-1090", "CVE-2012-1097", "CVE-2012-4398");
  script_bugtraq_id(50811, 51389, 52197, 52274);
  script_xref(name:"USN", value:"1426-1");

  script_name(english:"Ubuntu 10.04 LTS : linux-ec2 vulnerabilities (USN-1426-1)");
  script_summary(english:"Checks dpkg output for updated package.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Ubuntu host is missing a security-related patch."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Sasha Levin discovered a flaw in the permission checking for device
assignments requested via the kvm ioctl in the Linux kernel. A local
user could use this flaw to crash the system causing a denial of
service. (CVE-2011-4347)

Stephan Barwolf discovered a flaw in the KVM (kernel-based virtual
machine) subsystem of the Linux kernel. A local unprivileged user can
crash use this flaw to crash VMs causing a deny of service.
(CVE-2012-0045)

A flaw was discovered in the Linux kernel's cifs file system. An
unprivileged local user could exploit this flaw to crash the system
leading to a denial of service. (CVE-2012-1090)

H. Peter Anvin reported a flaw in the Linux kernel that could crash
the system. A local user could exploit this flaw to crash the system.
(CVE-2012-1097)

Tetsuo Handa reported a flaw in the OOM (out of memory) killer of the
Linux kernel. A local unprivileged user can exploit this flaw to cause
system unstability and denial of services. (CVE-2012-4398).

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/1426-1/"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected linux-image-2.6-ec2 package."
  );
  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_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:canonical:ubuntu_linux:linux-image-2.6-ec2");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:10.04:-:lts");

  script_set_attribute(attribute:"vuln_publication_date", value:"2012/05/17");
  script_set_attribute(attribute:"patch_publication_date", value:"2012/04/24");
  script_set_attribute(attribute:"plugin_publication_date", value:"2012/04/25");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"Ubuntu Security Notice (C) 2012-2019 Canonical, Inc. / NASL script (C) 2012-2019 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:"^(10\.04)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 10.04", "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-2011-4347", "CVE-2012-0045", "CVE-2012-1090", "CVE-2012-1097", "CVE-2012-4398");
  if (ksplice_cves_check(cve_list))
  {
    audit(AUDIT_PATCH_INSTALLED, "KSplice hotfix for USN-1426-1");
  }
  else
  {
    _ubuntu_report = ksplice_reporting_text();
  }
}

flag = 0;

if (ubuntu_check(osver:"10.04", pkgname:"linux-image-2.6.32-345-ec2", pkgver:"2.6.32-345.47")) flag++;

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_HOLE,
    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-2.6-ec2");
}
VendorProductVersionCPE
canonicalubuntu_linuxlinux-image-2.6-ec2p-cpe:/a:canonical:ubuntu_linux:linux-image-2.6-ec2
canonicalubuntu_linux10.04cpe:/o:canonical:ubuntu_linux:10.04:-:lts

7.2 High

CVSS2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:L/Au:N/C:C/I:C/A:C

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

0.002 Low

EPSS

Percentile

56.4%