Vulnerability Details : CVE-2021-20243
A flaw was found in ImageMagick in MagickCore/resize.c. An attacker who submits a crafted file that is processed by ImageMagick could trigger undefined behavior in the form of math division by zero. The highest threat from this vulnerability is to system availability.
Products affected by CVE-2021-20243
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:a:imagemagick:imagemagick:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-20243
0.10%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 42 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-20243
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.3
|
MEDIUM | AV:N/AC:M/Au:N/C:N/I:N/A:P |
8.6
|
2.9
|
NIST | |
|
5.5
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
1.8
|
3.6
|
NIST |
CWE ids for CVE-2021-20243
-
The product divides a value by zero.Assigned by: secalert@redhat.com (Primary)
References for CVE-2021-20243
-
https://bugzilla.redhat.com/show_bug.cgi?id=1928958
1928958 – (CVE-2021-20243) CVE-2021-20243 ImageMagick: Division by zero in GetResizeFilterWeight in MagickCore/resize.cIssue Tracking;Third Party Advisory
-
https://github.com/ImageMagick/ImageMagick/pull/3193
uses the PerceptibleReciprocal() to prevent the divide-by-zero from o… by hifoolno · Pull Request #3193 · ImageMagick/ImageMagick · GitHubPatch;Third Party Advisory
-
https://lists.debian.org/debian-lts-announce/2021/06/msg00000.html
[SECURITY] [DLA 2672-1] imagemagick security updateMailing List;Third Party Advisory
-
https://lists.debian.org/debian-lts-announce/2023/05/msg00020.html
[SECURITY] [DLA 3429-1] imagemagick security update
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