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Ubuntu 14.10 USN-2432-1 Critical: Glibc Denial Of Service Issues

The GNU C Library could be made to crash or run programs.. =========================================================================Ubuntu Security Notice USN-2432-1 December 03, 2014 eglibc, glibc vulnerabilities ========================================================================= A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 14.10 - Ubuntu 14.04 LTS - Ubuntu 12.04 LTS - Ubuntu 10.04 LTS Summary: The GNU C Library could be made to crash or run programs. Software Description: - glibc: GNU C Library - eglibc: GNU C Library Details: Siddhesh Poyarekar discovered that the GNU C Library incorrectly handled certain multibyte characters when using the iconv function. An attacker could possibly use this issue to cause applications to crash, resulting in a denial of service. This issue only affected Ubuntu 10.04 LTS and Ubuntu 12.04 LTS. (CVE-2012-6656) Adhemerval Zanella Netto discovered that the GNU C Library incorrectly handled certain multibyte characters when using the iconv function. An attacker could possibly use this issue to cause applications to crash, resulting in a denial of service. (CVE-2014-6040) Tim Waugh discovered that the GNU C Library incorrectly enforced the WRDE_NOCMD flag when handling the wordexp function. An attacker could possibly use this issue to execute arbitrary commands. (CVE-2014-7817) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 14.10: libc6 2.19-10ubuntu2.1 Ubuntu 14.04 LTS: libc6 2.19-0ubuntu6.4 Ubuntu 12.04 LTS: libc6 2.15-0ubuntu10.9 Ubuntu 10.04 LTS: libc6 2.11.1-0ubuntu7.19 After a standard system update you need to reboot your computer to make all the necessary changes. References: https://ubuntu.com/security/notices/USN-2432-1 CVE-2012-6656, CVE-2014-6040, CVE-2014-7817 PackageInformation: https://launchpad.net/ubuntu/+source/glibc/2.19-10ubuntu2.1 https://launchpad.net/ubuntu/+source/eglibc/2.19-0ubuntu6.4 https://launchpad.net/ubuntu/+source/eglibc/2.15-0ubuntu10.9 https://launchpad.net/ubuntu/+source/eglibc/2.11.1-0ubuntu7.19 . An urgent security alert has been issued for Ubuntu, highlighting critical flaws in glibc and EGLIBC across multiple distributions, urging immediate action.. glibc Vulnerabilities, EGLIBC Issues, Ubuntu Security Advisory, Denial Of Service Risks. . Severity: Critical. LinuxSecurity.com Team

Dec 03, 2014 •Critical Ubuntu