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Message-ID: <42EBD30E.5000204@gentoo.org> Date: Sat Jul 30 20:21:05 2005 From: koon at gentoo.org (Thierry Carrez) Subject: [ GLSA 200507-28 ] AMD64 x86 emulation base libraries: Buffer overflow - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200507-28 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://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 http://www.gentoo.org/security/en/glsa/glsa-200507-05.xml [ 2 ] GLSA 200507-19 http://www.gentoo.org/security/en/glsa/glsa-200507-19.xml [ 3 ] CAN-2005-1849 http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-1849 [ 4 ] CAN-2005-2096 http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-2096 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200507-28.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@...too.org or alternatively, you may file a bug at http://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. http://creativecommons.org/licenses/by-sa/2.0 -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 256 bytes Desc: OpenPGP digital signature Url : http://lists.grok.org.uk/pipermail/full-disclosure/attachments/20050730/f7a088d2/signature.bin
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