CVE-2020-18780 — Use After Free in Nasm

CWE-416 — Use After Free6 documents6 sources
Severity
5.5MEDIUMNVD
EPSS
0.0%
top 90.83%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
5
NasmDebian NasmNasm Netwide Assembler+2 more
Timeline
PublishedAug 22

Description

A Use After Free vulnerability in function new_Token in asm/preproc.c in nasm 2.14.02 allows attackers to cause a denial of service via crafted nasm command.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6

Affected Packages5 packages

▶debiandebian/nasm< nasm 2.15.04-1 (bookworm)
▶Debiannasm/nasm< 2.15.04-1+3

🔴Vulnerability Details

2
OSV
CVE-2020-18780: A Use After Free vulnerability in function new_Token in asm/preproc↗2023-08-22
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GHSA
GHSA-32c4-v26c-m9ch: A Use After Free vulnerability in function new_Token in asm/preproc↗2023-08-22
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📋Vendor Advisories

3
Microsoft
A Use After Free vulnerability in function new_Token in asm/preproc.c in nasm 2.14.02 allows attackers to cause a denial of service via crafted nasm command.↗2023-08-08
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Debian
CVE-2020-18780: nasm - A Use After Free vulnerability in function new_Token in asm/preproc.c in nasm 2....↗2020
▶
Red Hat
nasm: use-after-free in new_Token() in asm/preproc.c↗2019-11-27
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