WriteOnePNGImage() from coders/png.c (the PNG coder) has a for loop with an improper exit condition that can allow an out-of-bounds READ via heap-buffer-overflow. This occurs because it is possible for the colormap to have less than 256 valid values but the loop condition will loop 256 times, attempting to pass invalid colormap data to the event logger. The patch replaces the hardcoded 256 value with a call to MagickMin() to ensure the proper value is used. This could impact application availability when a specially crafted input file is processed by ImageMagick. This flaw affects ImageMagick versions prior to 7.0.8-68.
Metrics
Affected Vendors & Products
Advisories
| Source | ID | Title |
|---|---|---|
Debian DLA |
DLA-2523-1 | imagemagick security update |
Debian DLA |
DLA-3357-1 | imagemagick security update |
EUVD |
EUVD-2020-18336 | WriteOnePNGImage() from coders/png.c (the PNG coder) has a for loop with an improper exit condition that can allow an out-of-bounds READ via heap-buffer-overflow. This occurs because it is possible for the colormap to have less than 256 valid values but the loop condition will loop 256 times, attempting to pass invalid colormap data to the event logger. The patch replaces the hardcoded 256 value with a call to MagickMin() to ensure the proper value is used. This could impact application availability when a specially crafted input file is processed by ImageMagick. This flaw affects ImageMagick versions prior to 7.0.8-68. |
Ubuntu USN |
USN-4988-1 | ImageMagick vulnerabilities |
Ubuntu USN |
USN-5335-1 | ImageMagick vulnerabilities |
Ubuntu USN |
USN-7068-1 | ImageMagick vulnerabilities |
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
No history.
Status: PUBLISHED
Assigner: redhat
Published:
Updated: 2024-08-04T15:40:36.789Z
Reserved: 2020-09-16T00:00:00
Link: CVE-2020-25674
No data.
Status : Modified
Published: 2020-12-08T22:15:17.320
Modified: 2024-11-21T05:18:25.833
Link: CVE-2020-25674
OpenCVE Enrichment
No data.
Debian DLA
EUVD
Ubuntu USN