CVE-2020-28840

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2023-08-11 · updated 2026-06-17
Weakness: CWE-120

Description

Buffer Overflow vulnerability in jpgfile.c in Matthias-Wandel jhead version 3.04, allows local attackers to execute arbitrary code and cause a denial of service (DoS).

Affected products

Matthiaswandel Jhead: before 3.04 — fixed in 3.04

How to fix

Upgrade to a fixed version: Matthiaswandel Jhead 3.04. Check the vendor advisory for mitigations.

References

https://bugs.launchpad.net/ubuntu/+source/jhead/+bug/1900820
https://github.com/F-ZhaoYang/jhead/security/advisories/GHSA-xh27-xwgj-gqw2
https://github.com/Matthias-Wandel/jhead/commit/4827ed31c226dc5ed93603bd649e0e387a1778da
https://github.com/Matthias-Wandel/jhead/issues/8
https://bugs.launchpad.net/ubuntu/+source/jhead/+bug/1900820
https://github.com/F-ZhaoYang/jhead/security/advisories/GHSA-xh27-xwgj-gqw2
https://github.com/Matthias-Wandel/jhead/commit/4827ed31c226dc5ed93603bd649e0e387a1778da
https://github.com/Matthias-Wandel/jhead/issues/8

Get alerted when CVE-2020-28840 or the next vulnerability affects your stack