CVE-2008-5907
Medium
Description
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.
SeverityMedium
CVSS5.0
Exploit probability85. percentile2.6%
Product
Libpng
PublishedJan 15, 2009
First seenJan 15, 2009
How to fix
Update
- libpng libpng1.0.42, 1.2.34 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| libpng libpng | v < 1.0.42, 1.2.0 ≤ v < 1.2.34 | 1.0.42, 1.2.34 |
| debian debian_linux | 4.0, 5.0 | — |
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