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Gentoo: GLSA-200512-06 High: Ethereal OSPF Buffer Overflow Risk

Ethereal is missing bounds checking in the OSPF protocol dissector that could lead to abnormal program termination or the execution of arbitrary code. [More...]. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200512-06 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - https://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: High Title: Ethereal: Buffer overflow in OSPF protocol dissector Date: December 14, 2005 Bugs: #115030 ID: 200512-06 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======= Ethereal is missing bounds checking in the OSPF protocol dissector that could lead to abnormal program termination or the execution of arbitrary code. Background ========= Ethereal is a feature-rich network protocol analyzer. It provides protocol analyzers for various network flows, including one for Open Shortest Path First (OSPF) Interior Gateway Protocol. Affected packages ================ ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 net-analyzer/ethereal < 0.10.13-r2 > = 0.10.13-r2 Description ========== iDEFENSE reported a possible overflow due to the lack of bounds checking in the dissect_ospf_v3_address_prefix() function, part of the OSPF protocol dissector. Impact ===== An attacker might be able to craft a malicious network flow that would crash Ethereal. It may be possible, though unlikely, to exploit this flaw to execute arbitrary code with the permissions of the user running Ethereal, which could be the root user. Workaround ========= There is no known workaround at this time. Resolution ========= All Ethereal users should upgrade to the latestversion: # emerge --sync # emerge --ask --oneshot --verbose "> =net-analyzer/ethereal-0.10.13-r2" References ========= [ 1 ] CVE-2005-3651 https://www.cve.org/CVERecord?id=CVE-2005-3651 [ 2 ] iDEFENSE Advisory ;type=vulnerabilities Availability =========== This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/200512-06 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/ . Transcendental exhibits a critical vulnerability related to buffer overflow in the OSPF parser. It is recommended to execute an upgrade for enhanced security.. Ethereal Buffer Overflow,Gentoo Security Advisory,Network Security,Protocol Analyzer. . LinuxSecurity.com Team

Dec 14, 2005 Gentoo