PT-2023-11507 · Nasm+2 · Nasm+2

Rookie · Published 2023-08-22 · Updated 2024-12-08 · CVE-2020-18780

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions nasm version 2.14.02

Description A Use After Free issue in the new Token function in asm/preproc.c allows attackers to cause a denial of service via a crafted nasm command.

Recommendations For nasm version 2.14.02, consider disabling the new Token function in asm/preproc.c as a temporary workaround until a patch is available.

Exploit

Fix

DoS

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

ALT-PU-2024-16552

CVE-2020-18780

Affected Products

Alt Linux

Astra Linux

Nasm

References · 34

• 🔥 https://bugzilla.nasm.us/show_bug.cgi?id=3392634 · Exploit
• https://bdu.fstec.ru/vul/2023-05881 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-44370 · Security Note
• https://cve.org/CVERecord?id=CVE-2020-18780 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-21686 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-18780 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2020-18780 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-14248 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-6290 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2020-18780 · Vendor Advisory
• https://wiki.astralinux.ru/pages/viewpage.action?pageId=158612043 · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-18780 · Vendor Advisory
• https://errata.altlinux.org/ALT-PU-2024-16552 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2020-18780 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2020-18780 · Vendor Advisory