#VU77917 Heap-based buffer overflow in libjpeg-turbo - CVE-2023-2804

Vulnerability identifier: #VU77917

Vulnerability risk: Medium

CVSSv4.0: 4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-2804

CWE-ID: CWE-122

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
libjpeg-turbo
Client/Desktop applications / Multimedia software

Vendor: The libjpeg-turbo 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 "h2v2_merged_upsample_internal()" function of jdmrgext.c file. A remote attacker can pass specially crafted data to the application, trigger a heap-based buffer overflow and cause a denial of service condition on the target system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

libjpeg-turbo: 0.0.90 - 2.1.91

---

External links
https://github.com/libjpeg-turbo/libjpeg-turbo/issues/675
https://bugzilla.redhat.com/show_bug.cgi?id=2208447
https://github.com/libjpeg-turbo/libjpeg-turbo/issues/668#issuecomment-1492586118
https://access.redhat.com/security/cve/CVE-2023-2804
https://github.com/libjpeg-turbo/libjpeg-turbo/commit/9f756bc67a84d4566bf74a0c2432aa55da404021

---

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.