| Package | Affected versions | Patched versions |
|---|---|---|
| libpng | ≥ 1.0.0, < 1.0.53≥ 1.2.0, < 1.2.43≥ 1.4.0, < 1.4.1 | 1.0.531.2.431.4.1 |
The png_decompress_chunk function in pngrutil.c in libpng 1.0.x before 1.0.53, 1.2.x before 1.2.43, and 1.4.x before 1.4.1 does not properly handle compressed ancillary-chunk data that has a disproportionately large uncompressed representation, which allows remote attackers to cause a denial of service (memory and CPU consumption, and application hang) via a crafted PNG file, as demonstrated by use of the deflate compression method on data composed of many occurrences of the same character, related to a "decompression bomb" attack.
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