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    CVE-2009-0749

    Use-after-free vulnerability in the GIFReadNextExtension function in lib/pngxtern/gif/gifread.c in OptiPNG 0.6.2 and earlier allows context-dependent attackers to cause a denial of service (application crash) via a crafted GIF image that causes the realloc function to return a new pointer, which triggers memory corruption when the old pointer is accessed.

    Published:Mar 2, 2009
    Last Modified:Apr 23, 2026
    EPS:Mar 2, 2009
    EPSS Score:0.00408
    CVSS Score:7.8

    Affected Products

    Vendor
    Opensuse
    Product
    Opensuse
    Vendor
    Optipng Project
    Product
    Optipng
    Vendor
    Suse
    Product
    Linux Enterprise

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-416 Use After Free

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    References

    http://lists.opensuse.org/opensuse-security-announce/2009-03/msg00001.html
    http://lists.opensuse.org/opensuse-security-announce/2009-07/msg00002.html
    http://optipng.sourceforge.net
    http://secunia.com/advisories/34035
    http://secunia.com/advisories/34201
    http://secunia.com/advisories/34259
    http://secunia.com/advisories/35685
    http://sourceforge.net/tracker/index.php?func=detail&aid=2582013&group_id=151404&atid=780913
    http://www.gentoo.org/security/en/glsa/glsa-200903-12.xml
    http://www.openwall.com/lists/oss-security/2009/02/24/2
    http://www.openwall.com/lists/oss-security/2009/02/25/4
    http://www.securityfocus.com/bid/33873
    http://www.vupen.com/english/advisories/2009/0510
    https://exchange.xforce.ibmcloud.com/vulnerabilities/48879
    http://lists.opensuse.org/opensuse-security-announce/2009-03/msg00001.html
    http://lists.opensuse.org/opensuse-security-announce/2009-07/msg00002.html
    http://optipng.sourceforge.net
    http://secunia.com/advisories/34035
    http://secunia.com/advisories/34201
    http://secunia.com/advisories/34259
    http://secunia.com/advisories/35685
    http://sourceforge.net/tracker/index.php?func=detail&aid=2582013&group_id=151404&atid=780913
    http://www.gentoo.org/security/en/glsa/glsa-200903-12.xml
    http://www.openwall.com/lists/oss-security/2009/02/24/2
    http://www.openwall.com/lists/oss-security/2009/02/25/4
    http://www.securityfocus.com/bid/33873
    http://www.vupen.com/english/advisories/2009/0510
    https://exchange.xforce.ibmcloud.com/vulnerabilities/48879

    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