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Ubuntu 12.04 ESM: USN-3423-1 Critical: Bluetooth Denial of Service

The system could be made to crash if it received specially craftedbluetooth traffic.. =========================================================================Ubuntu Security Notice USN-3423-1 September 18, 2017 linux vulnerability ========================================================================= A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 12.04 ESM Summary: The system could be made to crash if it received specially crafted bluetooth traffic. Software Description: - linux: Linux kernel Details: It was discovered that a buffer overflow existed in the Bluetooth stack of the Linux kernel when handling L2CAP configuration responses. A physically proximate attacker could use this to cause a denial of service (system crash). Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 12.04 ESM: linux-image-3.2.0-131-generic 3.2.0-131.177 linux-image-3.2.0-131-generic-pae 3.2.0-131.177 linux-image-3.2.0-131-highbank 3.2.0-131.177 linux-image-3.2.0-131-omap 3.2.0-131.177 linux-image-3.2.0-131-powerpc-smp 3.2.0-131.177 linux-image-3.2.0-131-powerpc64-smp 3.2.0-131.177 linux-image-3.2.0-131-virtual 3.2.0-131.177 linux-image-generic 3.2.0.131.145 linux-image-generic-pae 3.2.0.131.145 linux-image-highbank 3.2.0.131.145 linux-image-omap 3.2.0.131.145 linux-image-powerpc-smp 3.2.0.131.145 linux-image-powerpc64-smp 3.2.0.131.145 linux-image-virtual 3.2.0.131.145 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. Unless you manually uninstalled the standard kernel metapackages (e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual, linux-powerpc), astandard system upgrade will automatically perform this as well. References: https://ubuntu.com/security/notices/USN-3423-1 CVE-2017-1000251 . Ubuntu 12.04 ESM administrators must swiftly mitigate a kernel failure vulnerability caused by malicious Bluetooth packets.. Linux Kernel Update, Ubuntu Security Notice, Bluetooth Crash Risk. . Severity: Critical. LinuxSecurity.com Team

Sep 18, 2017 •Critical Ubuntu