Description
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.
Metrics
AV:N/AC:M/Au:N/C:N/I:N/A:PWeakness enumeration
Affected software
No affected versions have been published.
Timeline
- Published
- Mar 3, 2010
- Last modified
- Jun 16, 2026
- NVD status
- Modified