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Gentoo: GLSA 200407-11 Normal: wv Buffer Overflow Risk For Code Execution

A buffer overflow vulnerability exists in the wv library that can allow an attacker to execute arbitrary code with the privileges of the user running the vulnerable application. [More...]. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200407-11 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - https://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: wv: Buffer overflow vulnerability Date: July 14, 2004 Bugs: #56595 ID: 200407-11 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======= A buffer overflow vulnerability exists in the wv library that can allow an attacker to execute arbitrary code with the privileges of the user running the vulnerable application. Background ========= The wv library allows access to MS Word files. It can parse Word files and allow other applications, such as abiword, to import those files into their native formats. Affected packages ================ ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 app-text/wv < 1.0.0-r1 > = 1.0.0-r1 Description ========== A use of strcat without proper bounds checking leads to an exploitable buffer overflow. The vulnerable code is executed when wv encounters an unrecognized token, so a specially crafted file, loaded in wv, can trigger the vulnerable code and execute it's own arbitrary code. This exploit is only possible when the user loads the document into HTML view mode. Impact ===== By inducing a user into running wv on a special file, an attacker can execute arbitrary code with the permissions of the userrunning the vulnerable program. Workaround ========= Users should not view untrusted documents with wvHtml or applications using wv. When loading an untrusted document in an application using the wv library, make sure HTML view is disabled. Resolution ========= All users should upgrade to the latest available version. # emerge sync # emerge -pv "> =app-text/wv-1.0.0-r1" # emerge "> =app-text/wv-1.0.0-r1" References ========= [ 1 ] iDEFENSE Security Advisory ;type=vulnerabilities&flashstatus=true Availability =========== This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/200407-11 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 2004 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/1.0/ -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (GNU/Linux) Comment: Using GnuPG with Thunderbird - iD8DBQFA9RT1vcL1obalX08RAiUHAKCmkDewZavqjyfirY/GgPi9UM6mXgCgjmE6 qJEPha1AIIv9RGOWHYeH6Sw=abPc -----END PGP SIGNATURE----- . SQL injection in XYZ application could give attackers access to sensitive user data. Apply patches to enhance security and safeguard information.. wv Library, Buffer Overflow, Gentoo Security, Application Exploit. . LinuxSecurity.com Team

Jul 14, 2004 Gentoo