Integer overflow in Imagemagick
CVE-2020-27759
In IntensityCompare() of /MagickCore/quantize.c, a double value was being casted to int and returned, which in some cases caused a value outside the range of type `int` to be returned. The flaw could be triggered by a crafted input file under certain conditions when processed by ImageMagick. Red Hat Product Security marked this as Low severity because although it could potentially lead to an impact to application availability, no specific impact was shown in this case. This flaw affects ImageMagick versions prior to 7.0.8-68.
Vulnerability class: Integer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.3 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.011 (65.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 65th percentile — 65.3% 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
- Debian Linux — versions 9.0
- Imagemagick — versions ImageMagick 7.0.8-68
Weakness classification (CWE)
Public proof-of-concept exploits
References
- bugzilla.redhat.com/show_bug.cgi (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-2020-27759?
- CVE-2020-27759 is a low-severity vulnerability in Imagemagick, classified under Integer Overflow or Wraparound. CVSS score: 3.3/10. Published 2020-12-03.
- How severe is CVE-2020-27759?
- Low severity. CVSS v3 base score is 3.3 out of 10.
- Is CVE-2020-27759 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.