Pufferüberlauf in X.Org
ID: | 201207-04 |
Distribution: | Gentoo |
Plattformen: | Keine Angabe |
Datum: | Di, 10. Juli 2012, 10:36 |
Referenzen: | http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-2118 |
Applikationen: | X11 |
Originalnachricht |
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This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enig03AD17F4EC0A7F103E593CB4 Content-Type: text/plain; charset=ISO-8859- Content-Transfer-Encoding: quoted-printable - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 201207-04 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: High Title: X.Org X Server: Privilege escalation Date: July 09, 2012 Bugs: #412609 ID: 201207-04 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== A format string vulnerability in X.Org X Server may allow local privilege escalation or Denial of Service. Background ========== The X Window System is a graphical windowing system based on a client/server model. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 x11-base/xorg-server < 1.11.4-r1 >= 1.11.4-r1 *>= 1.10.6-r1 *<= 1.9.5-r1 Description =========== The "LogVHdrMessageVerb()" function in log.c contains a format string vulnerability. NOTE: Exposure to this vulnerability is reduced in Gentoo due to X.Org X Server being built with "-D_FORTIFY_SOURCE=2" by default. Impact ====== A local attacker could gain escalated privileges or cause a Denial of Service condition. Workaround ========== There is no known workaround at this time. Resolution ========== All X.Org X Server 1.11.x users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=x11-base/xorg-server-1.11.4-r1" All X.Org X Server 1.10.x users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=x11-base/xorg-server-1.10.6-r1" X.Org X Server 1.9.x is not affected. References ========== [ 1 ] CVE-2012-2118 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-2118 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-201207-04.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 2012 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 --------------enig03AD17F4EC0A7F103E593CB4 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.17 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iF4EAREIAAYFAk/7XnUACgkQAnl3SfnYR/hSFwD9EJzuufunRf7RcNSXjvMPooCe q9JcPSJ26GpBHYPyzRIA+gJp+Z87CLWfuKkRId4ivwMF0b2wS+H7XiQodtP+dHkg =yzGC -----END PGP SIGNATURE----- --------------enig03AD17F4EC0A7F103E593CB4-- |