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.
Novell Linux Desktop 9 for x86 Novell Linux Desktop 9 for x86_64 Open Enterprise Server openSUSE 10.3 openSUSE 11.0 openSUSE 11.1 SUSE CORE 9 for AMD64 and Intel EM64T SUSE Linux Enterprise Desktop 11 SP4 SUSE Linux Enterprise Server 11 SP1 SUSE Linux Enterprise Server 11 SP2 SUSE Linux Enterprise Server 11 SP3 SUSE Linux Enterprise Server 11 SP4 SUSE Linux Enterprise Server for SAP Applications 11 SP4 SUSE Linux Enterprise Software Development Kit 11 SP4