Use After Free in Imagemagick
CVE-2020-25663
A call to ConformPixelInfo() in the SetImageAlphaChannel() routine of /MagickCore/channel.c caused a subsequent heap-use-after-free or heap-buffer-overflow READ when GetPixelRed() or GetPixelBlue() was called. This could occur if an attacker is able to submit a malicious image file to be processed by ImageMagick and could lead to denial of service. It likely would not lead to anything further because the memory is used as pixel data and not e.g. a function pointer. This flaw affects ImageMagick versions prior to 7.0.9-0.
Vulnerability class: Use-After-Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.011 (64.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 65th percentile — 64.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: +0.000
Affected products
- Imagemagick
- Imagemagick — versions prior to 7.0.9-0
Weakness classification (CWE)
References
- github.com/ImageMagick/ImageMagick/issues/1723 (Exploit, Third Party Advisory)
- bugzilla.redhat.com/show_bug.cgi (Patch, Third Party Advisory, Issue Tracking)
- github.com/ImageMagick/ImageMagick/issues/1723 (Third Party Advisory)
Frequently asked questions
- What is CVE-2020-25663?
- CVE-2020-25663 is a medium-severity vulnerability in Imagemagick, classified under Use After Free. CVSS score: 5.5/10. Published 2020-12-08.
- How severe is CVE-2020-25663?
- Medium severity. CVSS v3 base score is 5.5 out of 10.