CVE-2011-2692
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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (4.23%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 4.23% probability · 90th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-119
- Affected
- libpng/libpng · fedoraproject/fedora · debian/debian linux · canonical/ubuntu linux
- Source
- secalert@redhat.com
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.htmlMailing List, Third Party Advisory
- http://lists.apple.com/archives/security-announce/2012/May/msg00001.htmlMailing List, Third Party Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2011-July/063118.htmlMailing List, Third Party Advisory
- http://secunia.com/advisories/45046Broken Link
- http://secunia.com/advisories/45405Broken Link
- http://secunia.com/advisories/45415Broken Link
- http://secunia.com/advisories/45445Broken Link
- http://secunia.com/advisories/45460Broken Link
- http://secunia.com/advisories/45461Broken Link
- http://secunia.com/advisories/45492Broken Link
- http://secunia.com/advisories/49660Broken Link
- http://security.gentoo.org/glsa/glsa-201206-15.xmlThird Party Advisory
- http://sourceforge.net/mailarchive/forum.php?thread_name=003101cc2790%24fb5d6e80%24f2184b80%24%40acm.org&forum_name=png-mng-implementExploit, Issue Tracking, Third Party Advisory
- http://support.apple.com/kb/HT5002Third Party Advisory
- http://support.apple.com/kb/HT5281Third Party Advisory
- http://www.debian.org/security/2011/dsa-2287Third Party Advisory
- http://www.kb.cert.org/vuls/id/819894Third Party Advisory, US Government Resource
- http://www.libpng.org/pub/png/libpng.htmlProduct, Vendor Advisory
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:151Broken Link
- http://www.openwall.com/lists/oss-security/2011/07/13/2Mailing List, Third Party Advisory
- http://www.redhat.com/support/errata/RHSA-2011-1103.htmlBroken Link
- http://www.redhat.com/support/errata/RHSA-2011-1104.htmlBroken Link
- http://www.redhat.com/support/errata/RHSA-2011-1105.htmlBroken Link
- http://www.securityfocus.com/bid/48618Third Party Advisory, VDB Entry
- http://www.ubuntu.com/usn/USN-1175-1Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=720612Issue Tracking, Patch, Third Party Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/68536Third Party Advisory, VDB Entry
- 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.htmlMailing List, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.