[gentoo-announce] [ GLSA 201502-07 ] libevent: User-assisted execution of arbitrary code

Fabricante: Gentoo
Fecha: 07/02/2015
Identificador: GLSA 201502-07
[gentoo-announce] [ GLSA 201502-07 ] libevent: User-assisted execution of arbitrary code
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 201502-07 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: libevent: User-assisted execution of arbitrary code Date: February 07, 2015 Bugs: #535774 ID: 201502-07 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== Multiple integer overflow errors in libevent could result in execution of arbitrary code or Denial of Service. Background ========== libevent is a library to execute a function when a specific event occurs on a file descriptor. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 dev-libs/libevent < 2.0.22 >= 2.0.22 Description =========== Multiple integer overflow errors in libevent could cause a heap-based buffer overflow. Impact ====== A context-dependent attacker could cause an application linked against libevent to pass an excessively long input through evbuffer, possibly resulting in execution of arbitrary code with the privileges of the process or a Denial of Service condition. Workaround ========== There is no known workaround at this time. Resolution ========== All libevent users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=dev-libs/libevent-2.0.22" References ========== [ 1 ] CVE-2014-6272 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2014-6272 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-201502-07.xml Concerns? ========= Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users' machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org. License ======= Copyright 2015 Gentoo Foundation, Inc; referenced text belongs to its owner(s). The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license. http://creativecommons.org/licenses/by-sa/2.5