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

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


Synopsis :

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

Description :

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 Bärwolf 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).

Solution :

Update the affected linux-image-2.6.32-345-ec2 package.

Risk factor :

High / CVSS Base Score : 7.2
(CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C)
CVSS Temporal Score : 6.0
(CVSS2#E:F/RL:OF/RC:C)
Public Exploit Available : true

Family: Ubuntu Local Security Checks

Nessus Plugin ID: 58871 ()

Bugtraq ID: 50811
51389
52197
52274

CVE ID: CVE-2011-4347
CVE-2012-0045
CVE-2012-1090
CVE-2012-1097
CVE-2012-4398