Vulnerability · Published Jul 26, 2022 · Assigned by mitre

CVE-2021-33450

Medium 5.5

In plain English

A medium-severity security flaw in the nasm package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 26% of all known vulnerabilities).

Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)0.3%top 74.0% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

An issue was discovered in NASM version 2.16rc0. There are memory leaks in nasm_calloc() in nasmlib/alloc.c.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12nasmno fix listedDEBIAN-CVE-2021-33450
Debian:13nasmno fix listedDEBIAN-CVE-2021-33450
Debian:14nasmno fix listedDEBIAN-CVE-2021-33450
Ubuntu:25.10nasmno fix listedUBUNTU-CVE-2021-33450

Affected products (as reported)

VendorProductVersions
n/a n/a n/a

References