CVE-2021-3496

Affected: jhead

A heap-based buffer overflow was found in jhead in version 3.06 in Get16u() in exif.c when processing a crafted file.

USN-6110-1 — Jhead vulnerabilities

Affected: Ubuntu:Pro:14.04:LTS: jhead, Ubuntu:Pro:16.04:LTS: jhead, Ubuntu:Pro:18.04:LTS: jhead, Ubuntu:Pro:20.04:LTS: jhead, Ubuntu:Pro:22.04:LTS: jhead

It was discovered that Jhead did not properly handle certain crafted Canon images when processing them. An attacker could possibly use this issue to crash Jhead, resulting in a denial of service. This issue only affected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, and Ubuntu 20.04 LTS. (CVE-2021-3496)

It was discovered that Jhead did not properly handle certain crafted images when printing Canon-specific information. An attacker could possibly use this issue to crash Jhead, resulting in a denial of service. This issue only affected Ubuntu 20.04. (CVE-2021-28275)

It was discovered that Jhead did not properly handle certain crafted images when removing unknown sections. An attacker could possibly use this issue to crash Jhead, resulting in a denial of service. This issue only affected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, and Ubuntu 20.04 LTS. (CVE-2021-28277)

Kyle Brown discovered that Jhead did not properly handle certain crafted images when editing their comments. An attacker could possibly use this to crash Jhead, resulting in a denial of service. (LP: #2020068)

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CVE-2021-3496

USN-6110-1 — Jhead vulnerabilities