In WriteOnePNGImage() of the PNG coder at coders/png.c, an improper call to AcquireVirtualMemory() and memset() allows for an out-of-bounds write later when PopShortPixel() from MagickCore/quantum-private.h is called. The patch fixes the calls by adding 256 to rowbytes. An attacker who is able to supply a specially crafted image could affect availability with a low impact to data integrity. This flaw affects ImageMagick versions prior to 6.9.10-68 and 7.0.8-68.
References
Link | Resource |
---|---|
https://bugzilla.redhat.com/show_bug.cgi?id=1891605 | Exploit Issue Tracking Patch Third Party Advisory |
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/Z3J6D7POCQYQKNVRDYLTTPM5SQC3WVTR/ | Mailing List Third Party Advisory |
Information
Published : 2020-12-08 13:15
Updated : 2021-12-16 10:38
NVD link : CVE-2020-25664
Mitre link : CVE-2020-25664
JSON object : View
Products Affected
imagemagick
- imagemagick
fedoraproject
- fedora