Ubuntu 11.10 : linux vulnerabilities (USN-1607-1)

Ubuntu Security Notice (C) 2012-2013 Canonical, Inc. / NASL script (C) 2012-2013 Tenable Network Security, Inc.


Synopsis :

The remote Ubuntu host is missing one or more security-related patches.

Description :

Vadim Ponomarev discovered a flaw in the Linux kernel causing a
reference leak when PID namespaces are used. A remote attacker could
exploit this flaw causing a denial of service. (CVE-2012-2127)

A flaw was found in how the Linux kernel's KVM (Kernel-based Virtual
Machine) subsystem handled MSI (Message Signaled Interrupts). A local
unprivileged user could exploit this flaw to cause a denial of service
or potentially elevate privileges. (CVE-2012-2137).

Solution :

Update the affected packages.

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:C)
Public Exploit Available : true

Family: Ubuntu Local Security Checks

Nessus Plugin ID: 62514 ()

Bugtraq ID: 54063
55774

CVE ID: CVE-2012-2127
CVE-2012-2137