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Ubuntu Security Notice USN-1387-1

Ubuntu Security Notice USN-1387-1
Posted Mar 6, 2012
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1387-1 - Aristide Fattori and Roberto Paleari reported a flaw in the Linux kernel's handling of IPv4 icmp packets. A remote user could exploit this to cause a denial of service. A flaw was found in the Linux Ethernet bridge's handling of IGMP (Internet Group Management Protocol) packets. An unprivileged local user could exploit this flaw to crash the system. Han-Wen Nienhuys reported a flaw in the FUSE kernel module. A local user who can mount a FUSE file system could cause a denial of service. Various other issues were also addressed.

tags | advisory, remote, denial of service, kernel, local, protocol
systems | linux, ubuntu
advisories | CVE-2011-1927, CVE-2011-0716, CVE-2011-3353, CVE-2011-3619, CVE-2011-4622, CVE-2012-0038, CVE-2012-0044, CVE-2011-0716, CVE-2011-1927, CVE-2011-3353, CVE-2011-3619, CVE-2011-4622, CVE-2012-0038, CVE-2012-0044
SHA-256 | 40ff9f09cac0bb58416a79990e0931211e0f67f009ea3cfee34f33dde61736aa

Ubuntu Security Notice USN-1387-1

Change Mirror Download
============================================================================
Ubuntu Security Notice USN-1387-1
March 06, 2012

linux-lts-backport-maverick vulnerabilities
============================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 10.04 LTS

Summary:

Several security issues were fixed in the kernel.

Software Description:
- linux-lts-backport-maverick: Linux kernel backport from Maverick

Details:

Aristide Fattori and Roberto Paleari reported a flaw in the Linux kernel's
handling of IPv4 icmp packets. A remote user could exploit this to cause a
denial of service. (CVE-2011-1927)

A flaw was found in the Linux Ethernet bridge's handling of IGMP (Internet
Group Management Protocol) packets. An unprivileged local user could
exploit this flaw to crash the system. (CVE-2011-0716)

Han-Wen Nienhuys reported a flaw in the FUSE kernel module. A local user
who can mount a FUSE file system could cause a denial of service.
(CVE-2011-3353)

A flaw was discovered in the Linux kernel's AppArmor security interface
when invalid information was written to it. An unprivileged local user
could use this to cause a denial of service on the system. (CVE-2011-3619)

A flaw was found in KVM's Programmable Interval Timer (PIT). When a virtual
interrupt control is not available a local user could use this to cause a
denial of service by starting a timer. (CVE-2011-4622)

A flaw was discovered in the XFS filesystem. If a local user mounts a
specially crafted XFS image it could potential execute arbitrary code on
the system. (CVE-2012-0038)

Chen Haogang discovered an integer overflow that could result in memory
corruption. A local unprivileged user could use this to crash the system.
(CVE-2012-0044)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 10.04 LTS:
linux-image-2.6.35-32-generic 2.6.35-32.66~lucid1
linux-image-2.6.35-32-generic-pae 2.6.35-32.66~lucid1
linux-image-2.6.35-32-server 2.6.35-32.66~lucid1
linux-image-2.6.35-32-virtual 2.6.35-32.66~lucid1

After a standard system update you need to reboot your computer to make
all the necessary changes.

References:
http://www.ubuntu.com/usn/usn-1387-1
CVE-2011-0716, CVE-2011-1927, CVE-2011-3353, CVE-2011-3619,
CVE-2011-4622, CVE-2012-0038, CVE-2012-0044

Package Information:
https://launchpad.net/ubuntu/+source/linux-lts-backport-maverick/2.6.35-32.66~lucid1
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