Vulnerability identifier: #VU69875

Vulnerability risk: High

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-34055

CWE-ID: CWE-122

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
jhead
Other software / Other software solutions

Vendor: www.sentex.net

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error within the Put16u() function in exif.c. A remote attacker can pass specially crafted image file to the application, trigger a heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Install update from vendor's website.

Vulnerable software versions

jhead: 3.06 - 3.06.0.1

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External links
http://github.com/Matthias-Wandel/jhead/issues/36
http://lists.debian.org/debian-lts-announce/2022/12/msg00004.html
http://github.com/Matthias-Wandel/jhead/commit/f0a884210cc46830b176f71fd61569adc8f230a7

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.