Ubuntu 11.04 : linux vulnerabilities (USN-1432-1)

Ubuntu Security Notice (C) 2012-2014 Canonical, Inc. / NASL script (C) 2012-2014 Tenable Network Security, Inc.


Synopsis :

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

Description :

A flaw was found in the Linux's kernels ext4 file system when mounted
with a journal. A local, unprivileged user could exploit this flaw to
cause a denial of service. (CVE-2011-4086)

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)

A flaw was found in the Linux kernel's ext4 file system when mounting
a corrupt filesystem. A user-assisted remote attacker could exploit
this flaw to cause a denial of service. (CVE-2012-2100)

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 packages.

Risk factor :

High / CVSS Base Score : 7.1
(CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:C)
CVSS Temporal Score : 6.2
(CVSS2#E:ND/RL:OF/RC:C)
Public Exploit Available : true

Family: Ubuntu Local Security Checks

Nessus Plugin ID: 59032 ()

Bugtraq ID: 51945
52197

CVE ID: CVE-2011-4086
CVE-2012-1090
CVE-2012-2100
CVE-2012-4398