CVE-2011-2692
Description
The png_handle_sCAL function in pngrutil.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 does not properly handle invalid sCAL chunks, which allows remote attackers to cause a denial of service (memory corruption and application crash) or possibly have unspecified other impact via a crafted PNG image that triggers the reading of uninitialized memory.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
Debian Affected 2 releases
| Version | Status | Fixed in |
|---|---|---|
| 6.0 | Affected | — |
| 5.0 | Affected | — |
Fedora Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| 14 | Affected | — |
Ubuntu Affected 4 releases
| Version | Status | Fixed in |
|---|---|---|
| 11.04 | Affected | — |
| 10.10 | Affected | — |
| 10.04 | Affected | — |
| 8.04 | Affected | — |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| libpng | libpng | {"startIncluding":"1.0.0","endExcluding":"1.0.55"} | 1.0.55 |
References
- http://libpng.git.sourceforge.net/git/gitweb.cgi?p=libpng/libpng%3Ba=commit%3Bh=61a2d8a2a7b03023e63eae9a3e64607aaaa6d339
- http://lists.apple.com/archives/Security-announce/2011//Oct/msg00003.html
- http://lists.apple.com/archives/security-announce/2012/May/msg00001.html
- http://lists.fedoraproject.org/pipermail/package-announce/2011-July/063118.html
- http://secunia.com/advisories/45046
- http://secunia.com/advisories/45405
- http://secunia.com/advisories/45415
- http://secunia.com/advisories/45445
- http://secunia.com/advisories/45460
- http://secunia.com/advisories/45461
- http://secunia.com/advisories/45492
- http://secunia.com/advisories/49660
- http://security.gentoo.org/glsa/glsa-201206-15.xml
- http://sourceforge.net/mailarchive/forum.php?thread_name=003101cc2790%24fb5d6e80%24f2184b80%24%40acm.org&forum_name=png-mng-implement
- http://support.apple.com/kb/HT5002
- http://support.apple.com/kb/HT5281
- http://www.debian.org/security/2011/dsa-2287
- http://www.kb.cert.org/vuls/id/819894
- http://www.libpng.org/pub/png/libpng.html
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:151
- http://www.openwall.com/lists/oss-security/2011/07/13/2
- http://www.redhat.com/support/errata/RHSA-2011-1103.html
- http://www.redhat.com/support/errata/RHSA-2011-1104.html
- http://www.redhat.com/support/errata/RHSA-2011-1105.html
- http://www.securityfocus.com/bid/48618
CWEs
CWE-119
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.