CVE-2011-2501 Information

Description

The png_format_buffer function in pngerror.c in libpng 1.0.x before 1.0.55 1.2.x before 1.2.45 1.4.x before 1.4.8 and 1.5.x before 1.5.4 allows remote attackers to cause a denial of service (application crash) via a crafted PNG image that triggers an out-of-bounds read during the copying of error-message data. NOTE: this vulnerability exists because of a CVE-2004-0421 regression. NOTE: this is called an off-by-one error by some sources.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Reference

http://libpng.git.sourceforge.net/git/gitweb.cgi?p=libpng/libpng;a=commit;h=65e6d5a34f49acdb362a0625a706c6b914e670af http://lists.fedoraproject.org/pipermail/package-announce/2011-July/062720.html http://lists.fedoraproject.org/pipermail/package-announce/2011-July/063118.html http://secunia.com/advisories/45046 http://secunia.com/advisories/45289 http://secunia.com/advisories/45405 http://secunia.com/advisories/45415 http://secunia.com/advisories/45460 http://secunia.com/advisories/45486 http://secunia.com/advisories/45492 http://secunia.com/advisories/49660 http://security.gentoo.org/glsa/glsa-201206-15.xml http://slackware.com/security/viewer.php?l=slackware-security&y=2011&m=slackware-security.617466 http://sourceforge.net/mailarchive/forum.php?thread_name=BANLkTikrnU6FJNQYFvwmt78hwpgKPVRd1Q40mail.gmail.com&forum_name=png-mng-implement http://www.debian.org/security/2011/dsa-2287 http://www.mandriva.com/security/advisories?name=MDVSA-2011:151 http://www.openwall.com/lists/oss-security/2011/06/27/13 http://www.openwall.com/lists/oss-security/2011/06/28/16 http://www.redhat.com/support/errata/RHSA-2011-1105.html http://www.securityfocus.com/bid/48474 http://www.ubuntu.com/usn/USN-1175-1 https://bugzilla.redhat.com/show_bug.cgi?id=717084 https://exchange.xforce.ibmcloud.com/vulnerabilities/68517

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

6.5