This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --===============4896996488366482796== Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="------------enig6431C2EC65C5B20ECDDDB195"
This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enig6431C2EC65C5B20ECDDDB195 Content-Type: text/plain; charset=ISO-8859- Content-Transfer-Encoding: quoted-printable
========================================================================== Ubuntu Security Notice USN-1279-1 November 24, 2011
linux-lts-backport-natty 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-natty: Linux kernel backport from Natty
Details:
Andrea Righi discovered a race condition in the KSM memory merging support. If KSM was being used, a local attacker could exploit this to crash the system, leading to a denial of service. (CVE-2011-2183)
Vasily Averin discovered that the NFS Lock Manager (NLM) incorrectly handled unlock requests. A local attacker could exploit this to cause a denial of service. (CVE-2011-2491)
Vasiliy Kulikov discovered that taskstats did not enforce access restrictions. A local attacker could exploit this to read certain information, leading to a loss of privacy. (CVE-2011-2494)
Vasiliy Kulikov discovered that /proc/PID/io did not enforce access restrictions. A local attacker could exploit this to read certain information, leading to a loss of privacy. (CVE-2011-2495)
It was discovered that the wireless stack incorrectly verified SSID lengths. A local attacker could exploit this to cause a denial of service or gain root privileges. (CVE-2011-2517)
Christian Ohm discovered that the perf command looks for configuration files in the current directory. If a privileged user were tricked into running perf in a directory containing a malicious configuration file, an attacker could run arbitrary commands and possibly gain privileges. (CVE-2011-2905)
Vasiliy Kulikov discovered that the Comedi driver did not correctly clear memory. A local attacker could exploit this to read kernel stack memory, leading to a loss of privacy. (CVE-2011-2909)
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 10.04 LTS: linux-image-2.6.38-13-generic 2.6.38-13.52~lucid1 linux-image-2.6.38-13-generic-pae 2.6.38-13.52~lucid1 linux-image-2.6.38-13-server 2.6.38-13.52~lucid1 linux-image-2.6.38-13-virtual 2.6.38-13.52~lucid1
After a standard system update you need to reboot your computer to make all the necessary changes.
ATTENTION: Due to an unavoidable ABI change the kernel updates have been given a new version number, which requires you to recompile and reinstall all third party kernel modules you might have installed. If you use linux-restricted-modules, you have to update that package as well to get modules which work with the new kernel version. Unless you manually uninstalled the standard kernel metapackages (e.g. linux-generic, linux-server, linux-powerpc), a standard system upgrade will automatically perform this as well.
References: http://www.ubuntu.com/usn/usn-1279-1 CVE-2011-2183, CVE-2011-2491, CVE-2011-2494, CVE-2011-2495, CVE-2011-2517, CVE-2011-2905, CVE-2011-2909
Package Information: https://launchpad.net/ubuntu/+source/linux-lts-backport-natty/2.6.38-13.52~lucid1
--------------enig6431C2EC65C5B20ECDDDB195 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc"
-----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/
iQIcBAEBCgAGBQJOzlaXAAoJEAUvNnAY1cPYlAIQAIXX2cYMkoLoCubDiNToxKGy 7IPwCbIRLzS7DykiwQCq512NWv7Zh6oFrTU3/tYjG7k/xwUY0sJ2OR3OJfOk4sZd irwSvFPc3YAL1w5iyIkLT+EX9UBadxr+QngJ8FxbIcJ5Flcj7lBkmGJeJUEtOepw Hqv/vdiu0PmXYcHBkWczpGfLRjWs8VQ+KuUvTTDrWL3z056Ze/+rRBERsYlkL8/Y v0XzzPNjKPpUnQFTE3iBauMNUPX9FcNm6Jbz7iEBRcKSUjEvsBLJrvDR6gdOmO26 k++pqj4kf13joU6IRed+nZUsy/dOAa12twQ+nQGPK+ORkYVHU3yJDhHmY1ape8xj nXnxtVv9R0M6LjQJZRyFyouZNaiZdmvNzFMkjkT0U9oSaTDq2FaWipF7qLq7NaKp DHfAs/b8ES+sqr1qIJgjs3ukYW+wkJN5XB0SCImqwzJkX+Fm6mNAhZXWNmOhmjDl 6EW5Oe/d3cMfDAsgMml3TwmRPY3NV5nk5HdEM942losNH/Osm2GAauf1C9Zr0jeq bdtptGEIC4BYUfZlCLrxF2IoA7amp96n179P7pSQha1Z5q5f7AjCAdkACim/AKZh VTnzJ651TlafRG5QKdodpG+WHQcQbd36nGbDB024eS82uvYbprDXXL9jBjenRsXS +lH7pvAWDUElUlXa1lRL =h12y -----END PGP SIGNATURE-----
--------------enig6431C2EC65C5B20ECDDDB195--
--===============4896996488366482796== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline
-- ubuntu-security-announce mailing list ubuntu-security-announce@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-security-announce
--===============4896996488366482796==--
|