-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200712-17 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: exiftags: Multiple vulnerabilities Date: December 29, 2007 Bugs: #202354 ID: 200712-17 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== Multiple vulnerabilities in exiftags possibly allow for the execution of arbitrary code or a Denial of Service. Background ========== exiftags is a library and set of tools for parsing, editing and saving Exif metadata from images. Exif, the Exchangeable image file format, specifies the addition of metadata tags to JPEG, TIFF and RIFF files. Affected packages ================= ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 media-gfx/exiftags < 1.01 >= 1.01 Description =========== Meder Kydyraliev (Google Security) discovered that Exif metadata is not properly sanitized before being processed, resulting in illegal memory access in the postprop() and other functions (CVE-2007-6354). He also discovered integer overflow vulnerabilities in the parsetag() and other functions (CVE-2007-6355) and an infinite recursion in the readifds() function caused by recursive IFD references (CVE-2007-6356). Impact ====== An attacker could entice the user of an application making use of exiftags or an application included in exiftags to load an image file with specially crafted Exif tags, possibly resulting in the execution of arbitrary code with the privileges of the user running the application or a Denial of Service. Workaround ========== There is no known workaround at this time. Resolution ========== All exiftags users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=media-gfx/exiftags-1.01" References ========== [ 1 ] CVE-2007-6354 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6354 [ 2 ] CVE-2007-6355 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6355 [ 3 ] CVE-2007-6356 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6356 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200712-17.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 http://bugs.gentoo.org. License ======= Copyright 2007 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 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFHdlLBuhJ+ozIKI5gRAtz/AJwJMT4Gl3RaLl9RhM3nldvZg1G5GwCfb162 ES9/nzyGoX/7sZHZM/e2VS0= =UvnK -----END PGP SIGNATURE-----