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    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 corruption and application crash) or possibly have unspecified other impact via a crafted PNG image that triggers the reading of uninitialized memory.

    Published:Jul 7, 2011
    Last Modified:Apr 11, 2025
    EPS:Jul 17, 2011
    EPSS Score:0.07097
    CVSS Score:8.8

    Affected Products

    Vendor
    Canonical
    Product
    Ubuntu Linux
    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Fedoraproject
    Product
    Fedora
    Vendor
    Libpng
    Product
    Libpng
    Vendor
    Redhat
    Product
    Enterprise Linux

    Exploits

    http://sourceforge.net/mailarchive/forum.php?thread_name=003101cc2790%24fb5d6e80%24f2184b80%24%40acm.org&forum_name=png-mng-implementhttp://sourceforge.net/mailarchive/forum.php?thread_name=003101cc2790%24fb5d6e80%24f2184b80%24%40acm.org&forum_name=png-mng-implement

    Related CVEs

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    CVE-2026-13367 (CVSS 7.8) — IBM Informix Dynamic Server 14.10, and 15.0 contain a local privilege escalation vulnerability in the oninit s…
    CVE-2026-47337 (CVSS 3.3) — Ubuntu Linux 6.8, 6.17 and 7.0 contain SAUCE patches with a possible NULL pointer dereference in the handling …
    CVE-2026-47336 (CVSS 3.3) — Ubuntu Linux 6.8 contains SAUCE patches with a possible use of an uninitialized variable in AppArmor AF_INET/A…
    CVE-2026-47335 (CVSS 5.5) — Ubuntu Linux 6.8 contains SAUCE patches with a possible NULL pointer dereference in the handling of AppArmor n…
    CVE-2026-47334 (CVSS 5.5) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly sleep while holding a spinlock…
    CVE-2026-47333 (CVSS 7.8) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which can potentially incorrectly compute the si…
    CVE-2026-47332 (CVSS 5.5) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly validate the size of an intern…
    CVE-2026-47331 (CVSS 7.8) — Ubuntu Linux 6.8 contains AppArmor SAUCE patches which fail to acquire a lock when modifying a linked list. An…
    CVE-2026-47330 (CVSS 3.3) — Ubuntu Linux 6.8, 7.17 and 7.0 contain AppArmor SAUCE patches which can, under certain circumstances, use an u…

    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
    http://www.ubuntu.com/usn/USN-1175-1
    https://bugzilla.redhat.com/show_bug.cgi?id=720612
    https://exchange.xforce.ibmcloud.com/vulnerabilities/68536
    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
    http://www.ubuntu.com/usn/USN-1175-1
    https://bugzilla.redhat.com/show_bug.cgi?id=720612
    https://exchange.xforce.ibmcloud.com/vulnerabilities/68536

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High