Ubuntu 12.04 LTS : linux-lts-raring vulnerabilities (USN-2286-1)

Ubuntu Security Notice (C) 2014-2016 Canonical, Inc. / NASL script (C) 2014-2016 Tenable Network Security, Inc.


Synopsis :

The remote Ubuntu host is missing a security-related patch.

Description :

Sasha Levin reported a flaw in the Linux kernel's point-to-point
protocol (PPP) when used with the Layer Two Tunneling Protocol (L2TP).
A local user could exploit this flaw to gain administrative
privileges. (CVE-2014-4943)

Michael S. Tsirkin discovered an information leak in the Linux
kernel's segmentation of skbs when using the zerocopy feature of
vhost-net. A local attacker could exploit this flaw to gain
potentially sensitive information from kernel memory. (CVE-2014-0131)

Salva Peiro discovered an information leak in the Linux kernel's
media- device driver. A local attacker could exploit this flaw to
obtain sensitive information from kernel memory. (CVE-2014-1739)

A bounds check error was discovered in the socket filter subsystem of
the Linux kernel. A local user could exploit this flaw to cause a
denial of service (system crash) via crafted BPF instructions.
(CVE-2014-3144)

A remainder calculation error was discovered in the socket filter
subsystem of the Linux kernel. A local user could exploit this flaw to
cause a denial of service (system crash) via crafted BPF instructions.
(CVE-2014-3145)

An flaw was discovered in the Linux kernel's audit subsystem when
auditing certain syscalls. A local attacker could exploit this flaw to
obtain potentially sensitive single-bit values from kernel memory or
cause a denial of service (OOPS). (CVE-2014-3917)

A flaw was discovered in the Linux kernel's implementation of user
namespaces with respect to inode permissions. A local user could
exploit this flaw by creating a user namespace to gain administrative
privileges. (CVE-2014-4014)

Don Bailey discovered a flaw in the LZO decompress algorithm used by
the Linux kernel. An attacker could exploit this flaw to cause a
denial of service (memory corruption or OOPS). (CVE-2014-4608).

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.

Solution :

Update the affected linux-image-3.8.0-44-generic package.

Risk factor :

Medium / CVSS Base Score : 6.9
(CVSS2#AV:L/AC:M/Au:N/C:C/I:C/A:C)
CVSS Temporal Score : 5.7
(CVSS2#E:F/RL:OF/RC:ND)
Public Exploit Available : true

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