#VU83883 Stack-based buffer overflow in zbar - CVE-2023-40890

Vulnerability identifier: #VU83883

Vulnerability risk: High

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2023-40890

CWE-ID: CWE-121

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
zbar
Other software / Other software solutions

Vendor: zbar.sourceforge.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 lookup_sequence() function. A remote attacker can trick the victim to scan a specially crafted barcode, trigger a stack-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 updates from vendor's website.

Vulnerable software versions

zbar: 0.1 - 0.23.90

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External links
https://hackmd.io/%40cspl/H1PxPAUnn
https://lists.debian.org/debian-lts-announce/2023/12/msg00001.html

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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.