CVE-2018-20538

Publication date 28 December 2018

Last updated 11 July 2025

Ubuntu priority

Low

Why this priority?

Cvss 3 Severity Score

5.5 · Medium

Score breakdown

Description

There is a use-after-free at asm/preproc.c (function pp_getline) in Netwide Assembler (NASM) 2.14rc16 that will cause a denial of service during certain finishes tests.

Read the notes from the security team

Status

Package Ubuntu Release Status
nasm 26.04 LTS resolute
Vulnerable, fix deferred
25.10 questing
Vulnerable, fix deferred
25.04 plucky Ignored end of life, was deferred [2019-04-25]
24.10 oracular Ignored end of life, was deferred [2019-04-25]
24.04 LTS noble
Vulnerable, fix deferred
23.10 mantic Ignored end of life, was deferred [2019-04-25]
23.04 lunar Ignored end of life, was deferred [2019-04-25]
22.10 kinetic Ignored end of life, was deferred [2019-04-25]
22.04 LTS jammy
Vulnerable, fix deferred
21.10 impish Ignored end of life
21.04 hirsute Ignored end of life
20.10 groovy Ignored end of life
20.04 LTS focal
Vulnerable, fix deferred
19.10 eoan Ignored end of life
19.04 disco Ignored end of life
18.10 cosmic Ignored end of life
18.04 LTS bionic
Vulnerable, fix deferred
16.04 LTS xenial Ignored end of standard support, was deferred
14.04 LTS trusty Not in release

Notes

mdeslaur

no fix as of 2019-04-25

Severity score breakdown

CVSS version: CVSS v3.0

Base score 5.5 · Medium

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

References

Other references

Access our resources on patching vulnerabilities