#VU80867 Buffer overflow in GIFLIB - CVE-2023-39742

Vulnerability identifier: #VU80867

Vulnerability risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-39742

CWE-ID: CWE-119

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
GIFLIB
Client/Desktop applications / Multimedia software

Vendor: GIFLIB Project

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error in getarg.c. A remote attacker can pass a specially crafted input to the application, trigger memory corruption and perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

GIFLIB: 5.2.0 - 5.2.1

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External links
https://gist.github.com/huanglei3/ec9090096aa92445cf0a8baa8e929084
https://sourceforge.net/p/giflib/bugs/166/

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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.