RHEL 4 : kernel (RHSA-2011:0263)

This script is Copyright (C) 2011-2014 Tenable Network Security, Inc.


Synopsis :

The remote Red Hat host is missing one or more security updates.

Description :

Updated kernel packages that fix three security issues, hundreds of
bugs, and add numerous enhancements are now available as part of the
ongoing support and maintenance of Red Hat Enterprise Linux version 4.
This is the ninth regular update.

The Red Hat Security Response Team has rated this update as having
important security impact. Common Vulnerability Scoring System (CVSS)
base scores, which give detailed severity ratings, are available for
each vulnerability from the CVE links in the References section.

The kernel packages contain the Linux kernel, the core of any Linux
operating system.

This update fixes the following security issues :

* A buffer overflow flaw was found in the load_mixer_volumes()
function in the Linux kernel's Open Sound System (OSS) sound driver.
On 64-bit PowerPC systems, a local, unprivileged user could use this
flaw to cause a denial of service or escalate their privileges.
(CVE-2010-4527, Important)

* A missing boundary check was found in the dvb_ca_ioctl() function in
the Linux kernel's av7110 module. On systems that use old DVB cards
that require the av7110 module, a local, unprivileged user could use
this flaw to cause a denial of service or escalate their privileges.
(CVE-2011-0521, Important)

* A missing initialization flaw was found in the ethtool_get_regs()
function in the Linux kernel's ethtool IOCTL handler. A local user who
has the CAP_NET_ADMIN capability could use this flaw to cause an
information leak. (CVE-2010-4655, Low)

Red Hat would like to thank Dan Rosenberg for reporting CVE-2010-4527,
and Kees Cook for reporting CVE-2010-4655.

These updated kernel packages also fix hundreds of bugs and add
numerous enhancements. For details on individual bug fixes and
enhancements included in this update, refer to the Red Hat Enterprise
Linux 4.9 Release Notes, linked to in the References section.

Users should upgrade to these updated packages, which contain
backported patches to correct these issues and add these enhancements.
The system must be rebooted for this update to take effect.

See also :

https://www.redhat.com/security/data/cve/CVE-2010-4527.html
https://www.redhat.com/security/data/cve/CVE-2010-4655.html
https://www.redhat.com/security/data/cve/CVE-2011-0521.html
http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/4/html/
http://rhn.redhat.com/errata/RHSA-2011-0263.html

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 : 6.0
(CVSS2#E:ND/RL:OF/RC:ND)
Public Exploit Available : false

Family: Red Hat Local Security Checks

Nessus Plugin ID: 52009 ()

Bugtraq ID: 45629
45972
45986

CVE ID: CVE-2010-4527
CVE-2010-4655
CVE-2011-0521