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Gentoo: GLSA-200507-28 High: Emulation Libraries Buffer Overflow Risk

The x86 emulation base libraries for AMD64 contain a vulnerable version of zlib which could potentially lead to execution of arbitrary code.. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200507-28 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - https://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: High Title: AMD64 x86 emulation base libraries: Buffer overflow Date: July 30, 2005 Bugs: #100686 ID: 200507-28 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======= The x86 emulation base libraries for AMD64 contain a vulnerable version of zlib which could potentially lead to execution of arbitrary code. Background ========= The x86 emulation base libraries for AMD64 emulate the x86 (32-bit) architecture on the AMD64 (64-bit) architecture. Affected packages ================ ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 emul-linux-x86-baselibs < 2.2 > = 2.2 ------------------------------------------------------------------- # Package 1 only applies to AMD64 users. Description ========== Earlier versions of emul-linux-x86-baselibs contain a vulnerable version of zlib, which may lead to a buffer overflow. Impact ===== By creating a specially crafted compressed data stream, attackers can overwrite data structures for applications that use the x86 emulation base libraries for AMD64, resulting in a Denial of Service and potentially arbitrary code execution. Workaround ========= There is no known workaround at this time. Resolution ========= All AMD64 x86 emulation base libraries users should upgrade to the latest version: #emerge --sync # emerge --ask --oneshot --verbose "> =app-emulation/emul-linux-x86-baselibs-2.2" References ========= [ 1 ] GLSA 200507-05 https://security.gentoo.org/glsa/200507-05 [ 2 ] GLSA 200507-19 https://security.gentoo.org/glsa/200507-19 [ 3 ] CAN-2005-1849 [ 4 ] CAN-2005-2096 Availability =========== This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/200507-28 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 This email address is being protected from spambots. You need JavaScript enabled to view it. or alternatively, you may file a bug at https://bugs.gentoo.org/. License ====== Copyright 2005 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. https://creativecommons.org/licenses/by-sa/2.0/ . Critical warning issued for Gentoo concerning AMD64 x86 compatibility libraries, highlighting potential vulnerabilities related to buffer overflow threats.. AMD64 Security, Emulation Libraries, Gentoo Advisory. . LinuxSecurity.com Team

Aug 20, 2005 Gentoo