CVE-2021-33452

Publication date 26 July 2022

Last updated 15 September 2025


Ubuntu priority

Cvss 3 Severity Score

5.5 · Medium

Score breakdown

Description

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

Read the notes from the security team

Why is this CVE low priority?

memory leak, little security impact

Learn more about Ubuntu priority

Status

Package Ubuntu Release Status
nasm 25.10 questing
Vulnerable, fix deferred
25.04 plucky
Vulnerable, fix deferred
24.10 oracular Ignored end of life, was needs-triage
24.04 LTS noble
Vulnerable, fix deferred
23.10 mantic Ignored end of life, was needs-triage
23.04 lunar Ignored end of life, was needs-triage
22.10 kinetic Ignored end of life, was needs-triage
22.04 LTS jammy
Vulnerable, fix deferred
20.04 LTS focal
Vulnerable, fix deferred
18.04 LTS bionic
Vulnerable, fix deferred
16.04 LTS xenial
Vulnerable, fix deferred
14.04 LTS trusty Ignored end of standard support

Notes


hlibk

As of 2025-09-12, there is no upstream fix for this issue

Severity score breakdown

Parameter Value
Base score 5.5 · Medium
Attack vector Local
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H