Vulnerability in Imagemagick
CVE-2020-27756
In ParseMetaGeometry() of MagickCore/geometry.c, image height and width calculations can lead to divide-by-zero conditions which also lead to undefined behavior. This flaw can be triggered by a crafted input file processed by ImageMagick and could impact application availability. The patch uses multiplication in addition to the function `PerceptibleReciprocal()` in order to prevent such divide-by-zero conditions. This flaw affects ImageMagick versions prior to 7.0.9-0.
EPSS: 0.008 (53.9th 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
- N/a Imagemagick — versions prior to 7.0.9-0
Weakness classification (CWE)
References
- secalert@redhat.com (Exploit, Patch, Third Party Advisory, Issue Tracking)
- secalert@redhat.com (mailing-list)
Frequently asked questions
- What is CVE-2020-27756?
- CVE-2020-27756 is a medium-severity vulnerability in Imagemagick, classified under Divide By Zero. CVSS score: 5.5/10. Published 2020-12-08.
- How severe is CVE-2020-27756?
- Medium severity. CVSS v3 base score is 5.5 out of 10.