CVE-2011-2691: Null Pointer Dereference
First published: Tue Jul 12 2011(Updated: )
It was found that in libpng, prior to 1.2.45, the error function received a NULL pointer, expressed erroneously as '\0', instead of the empty string "". This error was introduced in libpng-1.2.20, and png_default_error() will crash in this case. This was be 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=9dad5e37aef295b4ef8dea39392b652deebc9261">http://libpng.git.sourceforge.net/git/gitweb.cgi?p=libpng/libpng;a=commitdiff;h=9dad5e37aef295b4ef8dea39392b652deebc9261</a>
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Libpng Libpng | >=1.5.0<1.5.4 | |
| Libpng Libpng | >=1.4.0<1.4.8 | |
| Libpng Libpng | >=1.2.0<1.2.45 | |
| Libpng Libpng | >=1.0.0<1.0.55 | |
| Fedoraproject Fedora | =14 | |
| Debian Debian Linux | =5.0 | |
| Debian Debian Linux | =6.0 |
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://secunia.com/advisories/45046
- http://www.openwall.com/lists/oss-security/2011/07/13/2
- http://www.libpng.org/pub/png/libpng.html
- http://www.securityfocus.com/bid/48660
- https://bugzilla.redhat.com/show_bug.cgi?id=720608
- http://www.debian.org/security/2011/dsa-2287
- http://secunia.com/advisories/45405
- http://lists.fedoraproject.org/pipermail/package-announce/2011-July/063118.html
- 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://secunia.com/advisories/49660
- http://security.gentoo.org/glsa/glsa-201206-15.xml
- http://marc.info/?l=bugtraq&m=133951357207000&w=2
- https://exchange.xforce.ibmcloud.com/vulnerabilities/68537
- http://libpng.git.sourceforge.net/git/gitweb.cgi?p=libpng/libpng%3Ba=commit%3Bh=9dad5e37aef295b4ef8dea39392b652deebc9261
- http://libpng.git.sourceforge.net/git/gitweb.cgi?p=libpng/libpng;a=commitdiff;h=9dad5e37aef295b4ef8dea39392b652deebc9261
- https://access.redhat.com/security/cve/CVE-2011-2691
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=721307
- collector/nvd-historical
- collector/nvd-index
- agent/type
- agent/softwarecombine
- agent/first-publish-date
- collector/mitre-cve
- source/MITRE
- collector/redhat-bugzilla
- source/Red Hat
- alias/CVE-2011-2691
- agent/last-modified-date
- agent/author
- agent/remedy
- agent/severity
- agent/references
- agent/weakness
- agent/tags
- agent/description
- agent/event
- agent/trending
- vendor/libpng
- canonical/libpng libpng
- version/libpng libpng/1.5.0
- version/libpng libpng/1.4.0
- version/libpng libpng/1.2.0
- version/libpng libpng/1.0.0
- vendor/fedoraproject
- canonical/fedoraproject fedora
- version/fedoraproject fedora/14
- vendor/debian
- canonical/debian debian linux
- version/debian debian linux/5.0
- version/debian debian linux/6.0