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    CVE-2008-5907

    The png_check_keyword function in pngwutil.c in libpng before 1.0.42, and 1.2.x before 1.2.34, might allow context-dependent attackers to set the value of an arbitrary memory location to zero via vectors involving creation of crafted PNG files with keywords, related to an implicit cast of the '\0' character constant to a NULL pointer. NOTE: some sources incorrectly report this as a double free vulnerability.

    Published:Nov 26, 2008
    Last Modified:Apr 23, 2026
    EPS:Jan 15, 2009
    EPSS Score:0.00786
    CVSS Score:5

    Affected Products

    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Libpng
    Product
    Libpng

    Exploits

    No exploit reference

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    References

    http://libpng.sourceforge.net/index.html
    http://lists.opensuse.org/opensuse-security-announce/2009-02/msg00000.html
    http://openwall.com/lists/oss-security/2009/01/09/1
    http://secunia.com/advisories/34320
    http://secunia.com/advisories/34388
    http://security.gentoo.org/glsa/glsa-200903-28.xml
    http://sourceforge.net/mailarchive/forum.php?thread_name=4B6F0239C13D0245820603C036D180BC79FBAA%40CABOTUKEXCH01.cabot.local&forum_name=png-mng-implement
    http://www.debian.org/security/2009/dsa-1750
    http://www.mandriva.com/security/advisories?name=MDVSA-2009:051
    https://exchange.xforce.ibmcloud.com/vulnerabilities/48128
    http://libpng.sourceforge.net/index.html
    http://lists.opensuse.org/opensuse-security-announce/2009-02/msg00000.html
    http://openwall.com/lists/oss-security/2009/01/09/1
    http://secunia.com/advisories/34320
    http://secunia.com/advisories/34388
    http://security.gentoo.org/glsa/glsa-200903-28.xml
    http://sourceforge.net/mailarchive/forum.php?thread_name=4B6F0239C13D0245820603C036D180BC79FBAA%40CABOTUKEXCH01.cabot.local&forum_name=png-mng-implement
    http://www.debian.org/security/2009/dsa-1750
    http://www.mandriva.com/security/advisories?name=MDVSA-2009:051
    https://exchange.xforce.ibmcloud.com/vulnerabilities/48128

    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