Integer overflow in Imagemagick
CVE-2020-27770
Due to a missing check for 0 value of `replace_extent`, it is possible for offset `p` to overflow in SubstituteString(), causing potential impact to application availability. This could be triggered by a crafted input file that is processed by ImageMagick. This flaw affects ImageMagick versions prior to 7.0.8-68.
Vulnerability class: Integer Overflow
EPSS: 0.011 (63.2th percentile) — read the EPSS interpretation.
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.
Affected products
- Imagemagick
- Debian Debian_linux — versions 9.0
- N/a Imagemagick — versions ImageMagick 7.0.8-68
Weakness classification (CWE)
References
- secalert@redhat.com (Exploit, Patch, Third Party Advisory, Issue Tracking)
- secalert@redhat.com (mailing-list, Mailing List, Third Party Advisory)
- secalert@redhat.com (mailing-list)
Frequently asked questions
- What is CVE-2020-27770?
- CVE-2020-27770 is a medium-severity vulnerability in Imagemagick, classified under Integer Overflow or Wraparound. CVSS score: 5.5/10. Published 2020-12-04.
- How severe is CVE-2020-27770?
- Medium severity. CVSS v3 base score is 5.5 out of 10.