What’s Vulnerable › Vulnerabilities

CVE-2020-26208: Heap-buffer-overflow in jhead

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-02-02 · updated 2026-06-17
• Weakness: CWE-787

Description

JHEAD is a simple command line tool for displaying and some manipulation of EXIF header data embedded in Jpeg images from digital cameras. In affected versions there is a heap-buffer-overflow on jhead-3.04/jpgfile.c:285 ReadJpegSections. Crafted jpeg images can be provided to the user resulting in a program crash or potentially incorrect exif information retrieval. Users are advised to upgrade. There is no known workaround for this issue.

Affected products

• jhead: before 3.04 — fixed in 3.04

How to fix

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

References

• https://bugs.launchpad.net/ubuntu/+source/jhead/+bug/1900821
• https://github.com/F-ZhaoYang/jhead/commit/5186ddcf9e35a7aa0ff0539489a930434a1325f4
• https://github.com/F-ZhaoYang/jhead/security/advisories/GHSA-7pr6-xq4f-qhgc
• https://github.com/Matthias-Wandel/jhead/issues/7
• https://bugs.launchpad.net/ubuntu/+source/jhead/+bug/1900821
• https://github.com/F-ZhaoYang/jhead/commit/5186ddcf9e35a7aa0ff0539489a930434a1325f4
• https://github.com/F-ZhaoYang/jhead/security/advisories/GHSA-7pr6-xq4f-qhgc
• https://github.com/Matthias-Wandel/jhead/issues/7

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