The png_check_keyword function in pngwutil.c in libpng prior to 1.0.42, and 1.2.x prior to 1.2.34, might allow context-dependent malicious users 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.
Vulnerable Product | Search on Vulmon | Subscribe to Product |
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libpng libpng |
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debian debian linux 4.0 |
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debian debian linux 5.0 |