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Ubuntu alert USN-1205-1 (linux-lts-backport-maverick)
========================================================================== Ubuntu Security Notice USN-1205-1 September 13, 2011 linux-lts-backport-maverick vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 10.04 LTS Summary: Multiple kernel flaws have been fixed. Software Description: - linux-lts-backport-maverick: Linux kernel backport from Maverick Details: It was discovered that the /proc filesystem did not correctly handle permission changes when programs executed. A local attacker could hold open files to examine details about programs running with higher privileges, potentially increasing the chances of exploiting additional vulnerabilities. (CVE-2011-1020) Dan Rosenberg discovered that the X.25 Rose network stack did not correctly handle certain fields. If a system was running with Rose enabled, a remote attacker could send specially crafted traffic to gain root privileges. (CVE-2011-1493) Dan Rosenberg discovered that the DCCP stack did not correctly handle certain packet structures. A remote attacker could exploit this to crash the system, leading to a denial of service. (CVE-2011-1770) Vasiliy Kulikov discovered that taskstats listeners were not correctly handled. A local attacker could expoit this to exhaust memory and CPU resources, leading to a denial of service. (CVE-2011-2484) It was discovered that Bluetooth l2cap and rfcomm did not correctly initialize structures. A local attacker could exploit this to read portions of the kernel stack, leading to a loss of privacy. (CVE-2011-2492) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 10.04 LTS: linux-image-2.6.35-30-generic 2.6.35-30.59~lucid1 linux-image-2.6.35-30-generic-pae 2.6.35-30.59~lucid1 linux-image-2.6.35-30-server 2.6.35-30.59~lucid1 linux-image-2.6.35-30-virtual 2.6.35-30.59~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-1205-1 CVE-2011-1020, CVE-2011-1493, CVE-2011-1770, CVE-2011-2484, CVE-2011-2492 Package Information: https://launchpad.net/ubuntu/+source/linux-lts-backport-m... -- ubuntu-security-announce mailing list ubuntu-security-announce@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-security... (Log in to post comments)
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