PT-2019-18077 · Netwide+2 · Netwide Assembler+2

Cheng Wen · Published 2019-01-15 · Updated 2024-12-08 · CVE-2019-6290

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 Netwide Assembler (NASM) versions prior to 2.14.03

Description An infinite recursion issue was found in the functions expr, rexp, bexpr, and cexpr in certain scenarios involving lots of '{' characters, resulting in a stack exhaustion problem. This could be leveraged by remote attackers to cause a denial-of-service via a crafted asm file.

Recommendations For versions prior to 2.14.03, update to version 2.14.03 or later to resolve the issue. As a temporary workaround, consider restricting the use of the expr, rexp, bexpr, and cexpr functions in scenarios involving lots of '{' characters to minimize the risk of exploitation.

Exploit

Fix

DoS

Uncontrolled Recursion

Weakness Enumeration

CWE-674

Related Identifiers

ALT-PU-2020-2243

ALT-PU-2024-16552

CVE-2019-6290

Affected Products

Alt Linux

Debian

Netwide Assembler

References · 34

• 🔥 https://bugzilla.nasm.us/show_bug.cgi?id=3392548 · Exploit
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-18780 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-6290 · Security Note
• https://osv.dev/vulnerability/CVE-2019-6290 · Vendor Advisory
• https://security-tracker.debian.org/tracker/source-package/nasm · Vendor Advisory
• https://bdu.fstec.ru/vul/2019-02930 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-8343 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-20334 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2019-6290 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2019-6290 · Vendor Advisory
• https://bdu.fstec.ru/vul/2023-02141 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-6291 · Security Note
• https://bdu.fstec.ru/vul/2023-05881 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-44370 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-21686 · Security Note