#VU84813 Heap-based buffer overflow in NASM - CVE-2022-44370

Vulnerability identifier: #VU84813

Vulnerability risk: Medium

CVSSv4.0: 4.8 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-44370

CWE-ID: CWE-122

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
NASM
Other software / Other software solutions

Vendor: nasm.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 quote_for_pmake() function in asm/nasm.c. A remote attacker can pass specially crafted file to the compiler, 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 updates from vendor's website.

Vulnerable software versions

NASM: 2.16

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External links
https://bugzilla.nasm.us/show_bug.cgi?id=3392815
https://security.gentoo.org/glsa/202312-09

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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.