Integer overflow in Imagemagick
CVE-2020-27766
A flaw was found in ImageMagick in MagickCore/statistic.c. An attacker who submits a crafted file that is processed by ImageMagick could trigger undefined behavior in the form of values outside the range of type `unsigned long`. This would most likely lead to an impact to application availability, but could potentially cause other problems related to undefined behavior. This flaw affects ImageMagick versions prior to 7.0.8-69.
Vulnerability class: Integer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.012 (66.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 67th percentile — 66.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000
Affected products
- Imagemagick
- Debian Linux — versions 9.0
- Imagemagick — versions ImageMagick 7.0.8-69
Weakness classification (CWE)
References
- bugzilla.redhat.com/show_bug.cgi (Exploit, Patch, Third Party Advisory, Issue Tracking)
- lists.debian.org/debian-lts-announce/2021/03/msg00030.html (mailing-list, Mailing List, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2023/03/msg00008.html (mailing-list)
Frequently asked questions
- What is CVE-2020-27766?
- CVE-2020-27766 is a high-severity vulnerability in Imagemagick, classified under Integer Overflow or Wraparound. CVSS score: 7.8/10. Published 2020-12-04.
- How severe is CVE-2020-27766?
- High severity. CVSS v3 base score is 7.8 out of 10.