CVE-2021-3596: debian debian_linux NULL Pointer Dereference
Vulnerability summary
CVE-2021-3596 is a medium (CVSS 6.5) NULL Pointer Dereference vulnerability in debian debian_linux. EPSS estimates a 1.89% chance of exploitation in the next 30 days, higher than 79.2% of scored vulnerabilities. 1 public exploit is recorded.
Advisory lineage
Upstream 0 · Downstream 2 · Related 1Timeline
- 24-02-2022PublishedVulnerability first disclosed.
- 03-08-2024Last modifiedVulnerability information updated.
Description
A NULL pointer dereference flaw was found in ImageMagick in versions prior to 7.0.10-31 in ReadSVGImage() in coders/svg.c. This issue is due to not checking the return value from libxml2's xmlCreatePushParserCtxt() and uses the value directly, which leads to a crash and segmentation fault.
CVSS metrics
5 scores · 4 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- OSV · ChainguardEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
EPSS trend
Probability
1.89%
Chance of exploitation in the next 30 days
Percentile
79%
Versus all other CVEs
30-day change
0.00 pp
From 1.89% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundImagemagick
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Debian2 products
- imagemagick< 8:6.9.11.57+dfsg-1
- debian_linuxEOL9.0
Chainguard1 product
- imagemagick-6All versions (No fix recorded)
Fedoraproject1 product
- fedoraEOL34
Imagemagick1 product
- imagemagick< 7.0.10-31
Redhat1 product
- enterprise_linuxEOL5.0 | 6.0 | 7.0
Ubuntu1 product
- imagemagick< 8:6.9.11.60+dfsg-1.3build1
6 vendors · 7 products
