Stack Use After Scope Vulnerability in NASM by NASM Developers
CVE-2020-21686

5.5MEDIUM

Key Information:

Vendor

Nasm

Status
Netwide Assembler
Vendor
CVE Published:
22 August 2023

What is CVE-2020-21686?

A stack-use-after-scope vulnerability exists in the expand_mmac_params function within preproc.c of NASM prior to version 2.15.04. This issue can be exploited by remote attackers through the use of specially crafted assembly files, potentially leading to a denial of service. Users and administrators are urged to upgrade to the latest version to mitigate the risks associated with this vulnerability.

References

https://bugzilla.nasm.us/show_bug.cgi?id=3392643

CVSS V3.1

Score:
5.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.