CVE-2011-2692: Buffer Overflow
First published: Tue Jul 12 2011(Updated: )
It was found that libpng read uninitialized memory when it encountered a sCAL chunk that is empty, and improperly handles a sCAL chunk that lacks the terminating zero between the two strings that it conveys. This was fixed in libpng-1.5.4, libpng-1.4.8, libpng-1.2.45, and libpng-1.0.55. Patch: <a href="http://libpng.git.sourceforge.net/git/gitweb.cgi?p=libpng/libpng;a=commitdiff;h=61a2d8a2a7b03023e63eae9a3e64607aaaa6d339">http://libpng.git.sourceforge.net/git/gitweb.cgi?p=libpng/libpng;a=commitdiff;h=61a2d8a2a7b03023e63eae9a3e64607aaaa6d339</a>
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| libpng | >=1.0.0<1.0.55 | |
| libpng | >=1.2.0<1.2.45 | |
| libpng | >=1.4.0<1.4.8 | |
| libpng | >=1.5.0<1.5.4 | |
| Fedora | =14 | |
| Debian | =5.0 | |
| Debian | =6.0 | |
| Ubuntu | =8.04 | |
| Ubuntu | =10.04 | |
| Ubuntu | =10.10 | |
| Ubuntu | =11.04 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
- http://www.kb.cert.org/vuls/id/819894
- http://www.libpng.org/pub/png/libpng.html
- http://secunia.com/advisories/45046
- http://sourceforge.net/mailarchive/forum.php?thread_name=003101cc2790%24fb5d6e80%24f2184b80%24%40acm.org&forum_name=png-mng-implement
- https://bugzilla.redhat.com/show_bug.cgi?id=720612
- http://www.openwall.com/lists/oss-security/2011/07/13/2
- http://secunia.com/advisories/45445
- http://secunia.com/advisories/45461
- http://www.securityfocus.com/bid/48618
- http://www.redhat.com/support/errata/RHSA-2011-1104.html
- http://www.redhat.com/support/errata/RHSA-2011-1103.html
- http://secunia.com/advisories/45415
- http://secunia.com/advisories/45460
- http://www.debian.org/security/2011/dsa-2287
- http://secunia.com/advisories/45405
- http://www.redhat.com/support/errata/RHSA-2011-1105.html
- http://lists.fedoraproject.org/pipermail/package-announce/2011-July/063118.html
- http://www.ubuntu.com/usn/USN-1175-1
- http://secunia.com/advisories/45492
- http://support.apple.com/kb/HT5002
- http://lists.apple.com/archives/Security-announce/2011//Oct/msg00003.html
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:151
- http://support.apple.com/kb/HT5281
- http://lists.apple.com/archives/security-announce/2012/May/msg00001.html
- http://security.gentoo.org/glsa/glsa-201206-15.xml
- http://secunia.com/advisories/49660
- https://exchange.xforce.ibmcloud.com/vulnerabilities/68536
- http://libpng.git.sourceforge.net/git/gitweb.cgi?p=libpng/libpng%3Ba=commit%3Bh=61a2d8a2a7b03023e63eae9a3e64607aaaa6d339
- http://libpng.git.sourceforge.net/git/gitweb.cgi?p=libpng/libpng;a=commitdiff;h=61a2d8a2a7b03023e63eae9a3e64607aaaa6d339
- https://access.redhat.com/security/cve/CVE-2011-2692
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=721307
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=721309
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=721310
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=721312
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=721311
- https://rhn.redhat.com/errata/RHSA-2011-1104.html
- https://rhn.redhat.com/errata/RHSA-2011-1103.html
- https://rhn.redhat.com/errata/RHSA-2011-1105.html
Frequently Asked Questions
What is the severity of CVE-2011-2692?
CVE-2011-2692 is considered to have a moderate severity due to potential information disclosure risks.
How do I fix CVE-2011-2692?
To fix CVE-2011-2692, upgrade to libpng versions 1.5.4, 1.4.8, 1.2.45, or 1.0.55.
Which software versions are affected by CVE-2011-2692?
CVE-2011-2692 affects libpng versions from 1.0.0 to 1.5.3 and various Linux distributions using these versions.
What types of vulnerabilities are associated with CVE-2011-2692?
CVE-2011-2692 is associated with uninitialized memory read vulnerabilities that may lead to information leakage.
Is CVE-2011-2692 exploitable in a typical environment?
Yes, CVE-2011-2692 is exploitable in environments where untrusted PNG files are processed by affected versions of libpng.
- agent/references
- agent/type
- agent/first-publish-date
- collector/mitre-cve
- source/MITRE
- collector/redhat-bugzilla
- source/Red Hat
- alias/CVE-2011-2692
- agent/last-modified-date
- agent/author
- agent/remedy
- agent/severity
- agent/weakness
- agent/description
- agent/event
- agent/trending
- agent/source
- agent/softwarecombine
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- collector/nvd-historical
- vendor/libpng
- canonical/libpng
- version/libpng/1.0.0
- version/libpng/1.2.0
- version/libpng/1.4.0
- version/libpng/1.5.0
- vendor/fedoraproject
- canonical/fedora
- version/fedora/14
- vendor/debian
- canonical/debian
- version/debian/5.0
- version/debian/6.0
- vendor/canonical
- canonical/ubuntu
- version/ubuntu/8.04
- version/ubuntu/10.04
- version/ubuntu/10.10
- version/ubuntu/11.04