--===============0482941333822464796== Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="6zdv2QT/q3FMhpsV" Content-Disposition: inline
--6zdv2QT/q3FMhpsV Content-Type: text/plain; charset=utf-8 Content-Disposition: inlin Content-Transfer-Encoding: quoted-printable
========================================================================== Ubuntu Security Notice USN-1141-1 May 31, 2011
linux, linux-ec2 vulnerabilities ==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 10.04 LTS
Summary:
Multiple kernel vulnerabilities have been fixed.
Software Description: - linux: Linux kernel - linux-ec2: Linux kernel for EC2
Details:
Brad Spengler discovered that the kernel did not correctly account for userspace memory allocations during exec() calls. A local attacker could exploit this to consume all system memory, leading to a denial of service. (CVE-2010-4243)
Alexander Duyck discovered that the Intel Gigabit Ethernet driver did not correctly handle certain configurations. If such a device was configured without VLANs, a remote attacker could crash the system, leading to a denial of service. (CVE-2010-4263)
Nelson Elhage discovered that Econet did not correctly handle AUN packets over UDP. A local attacker could send specially crafted traffic to crash the system, leading to a denial of service. (CVE-2010-4342)
Dan Rosenberg discovered that IRDA did not correctly check the size of buffers. On non-x86 systems, a local attacker could exploit this to read kernel heap memory, leading to a loss of privacy. (CVE-2010-4529)
Dan Rosenburg discovered that the CAN subsystem leaked kernel addresses into the /proc filesystem. A local attacker could use this to increase the chances of a successful memory corruption exploit. (CVE-2010-4565)
Kees Cook discovered that the IOWarrior USB device driver did not correctly check certain size fields. A local attacker with physical access could plug in a specially crafted USB device to crash the system or potentially gain root privileges. (CVE-2010-4656)
Goldwyn Rodrigues discovered that the OCFS2 filesystem did not correctly clear memory when writing certain file holes. A local attacker could exploit this to read uninitialized data from the disk, leading to a loss of privacy. (CVE-2011-0463)
Dan Carpenter discovered that the TTPCI DVB driver did not check certain values during an ioctl. If the dvb-ttpci module was loaded, a local attacker could exploit this to crash the system, leading to a denial of service, or possibly gain root privileges. (CVE-2011-0521)
Jens Kuehnel discovered that the InfiniBand driver contained a race condition. On systems using InfiniBand, a local attacker could send specially crafted requests to crash the system, leading to a denial of service. (CVE-2011-0695)
Rafael Dominguez Vega discovered that the caiaq Native Instruments USB driver did not correctly validate string lengths. A local attacker with physical access could plug in a specially crafted USB device to crash the system or potentially gain root privileges. (CVE-2011-0712)
Kees Cook reported that /proc/pid/stat did not correctly filter certain memory locations. A local attacker could determine the memory layout of processes in an attempt to increase the chances of a successful memory corruption exploit. (CVE-2011-0726)
Timo Warns discovered that MAC partition parsing routines did not correctly calculate block counts. A local attacker with physical access could plug in a specially crafted block device to crash the system or potentially gain root privileges. (CVE-2011-1010)
Timo Warns discovered that LDM partition parsing routines did not correctly calculate block counts. A local attacker with physical access could plug in a specially crafted block device to crash the system, leading to a denial of service. (CVE-2011-1012)
Matthiew Herrb discovered that the drm modeset interface did not correctly handle a signed comparison. A local attacker could exploit this to crash the system or possibly gain root privileges. (CVE-2011-1013)
Marek Olšák discovered that the Radeon GPU drivers did not correctly validate certain registers. On systems with specific hardware, a local attacker could exploit this to write to arbitrary video memory. (CVE-2011-1016)
Vasiliy Kulikov discovered that the CAP_SYS_MODULE capability was not needed to load kernel modules. A local attacker with the CAP_NET_ADMIN capability could load existing kernel modules, possibly increasing the attack surface available on the system. (CVE-2011-1019)
Nelson Elhage discovered that the epoll subsystem did not correctly handle certain structures. A local attacker could create malicious requests that would hang the system, leading to a denial of service. (CVE-2011-1082)
Nelson Elhage discovered that the epoll subsystem did not correctly handle certain structures. A local attacker could create malicious requests that would consume large amounts of CPU, leading to a denial of service. (CVE-2011-1083)
Julien Tinnes discovered that the kernel did not correctly validate the signal structure from tkill(). A local attacker could exploit this to send signals to arbitrary threads, possibly bypassing expected restrictions. (CVE-2011-1182)
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 10.04 LTS: linux-image-2.6.32-316-ec2 2.6.32-316.31 linux-image-2.6.32-32-386 2.6.32-32.62 linux-image-2.6.32-32-generic 2.6.32-32.62 linux-image-2.6.32-32-generic-pae 2.6.32-32.62 linux-image-2.6.32-32-ia64 2.6.32-32.62 linux-image-2.6.32-32-lpia 2.6.32-32.62 linux-image-2.6.32-32-powerpc 2.6.32-32.62 linux-image-2.6.32-32-powerpc-smp 2.6.32-32.62 linux-image-2.6.32-32-powerpc64-smp 2.6.32-32.62 linux-image-2.6.32-32-preempt 2.6.32-32.62 linux-image-2.6.32-32-server 2.6.32-32.62 linux-image-2.6.32-32-sparc64 2.6.32-32.62 linux-image-2.6.32-32-sparc64-smp 2.6.32-32.62 linux-image-2.6.32-32-versatile 2.6.32-32.62 linux-image-2.6.32-32-virtual 2.6.32-32.62
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: CVE-2010-4243, CVE-2010-4263, CVE-2010-4342, CVE-2010-4529, CVE-2010-4565, CVE-2010-4656, CVE-2011-0463, CVE-2011-0521, CVE-2011-0695, CVE-2011-0712, CVE-2011-0726, CVE-2011-1010, CVE-2011-1012, CVE-2011-1013, CVE-2011-1016, CVE-2011-1019, CVE-2011-1082, CVE-2011-1083, CVE-2011-1182
Package Information: https://launchpad.net/ubuntu/+source/linux/2.6.32-32.62 https://launchpad.net/ubuntu/+source/linux-ec2/2.6.32-316.31
--6zdv2QT/q3FMhpsV Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature
-----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) Comment: Kees Cook <kees@outflux.net>
iQIcBAEBCgAGBQJN5YEHAAoJEIly9N/cbcAmCUAP/il4QSWbr6vJ1+qzKyt2yLjS /p2HGfIGjpdLNwFYpXwsjPkK3D6IRRp7TKrkONaTyKCKYB6touqxOlT+7EVxO+Eq d457Tq/XCEbi9/Xk88cf43RMl+cKtgRMCGTgJj9OsxP6+bF8um4YOhd87q2Taew4 XakZeaWSwo0WZNQy+BYG0o/y1kb1WahqNOz0TR8JysV350uo9qkNRQpXs1PHiife s8lpd/EycxeVDMDJbhXcAPsYR+HAG6aAlTMrxCc5WFgqMI9yk0Xf/vySbzBGUX6B lWLrM4wM2HmWOySQW/5pHf1wLizkXCcDTd/mYEmdbYw84BxZq0QZc6dEnZ55rk9k RGFKPp4/h+TCWmx1e74z/VgX8Wkf1yYCg7WJI5lAuyV7mDpTGJVDINGexj+h4uoU ViuvoB4tOd0SMwoIQ8cn1xSVo216PRQiGjijrE7tzp18sCrHNrz7KRK+8yGgumT5 iSx19txUjlgZ8BzXYu6MNsCUIK9b/+pwJAudejiw5hEK97r4v+IpilbaKLXWCgWP uP2AweDLbUj8Pkn1+lLLfuFIyR/fwkAD5jqaSjLpPgU95CQUmx7XIJmHgLqVk+Lt Jb/mFc5mTx5/v7FVFdaMdqOTBO9bH//g1of8wlNJselymHHJOQkQpUzBPTRky5R4 mlSBPNNGSSD6/50NNccl =ect/ -----END PGP SIGNATURE-----
--6zdv2QT/q3FMhpsV--
--===============0482941333822464796== 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
--===============0482941333822464796==--
|