CVE-2017-14228

Publication date 9 September 2017

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

In Netwide Assembler (NASM) 2.14rc0, there is an illegal address access in the function paste_tokens() in preproc.c, aka a NULL pointer dereference. It will lead to remote denial of service.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
nasm	18.04 LTS bionic	Not affected
	17.10 artful	Fixed 2.13.01-2ubuntu0.1
	17.04 zesty	Ignored end of life
	16.04 LTS xenial	Fixed 2.11.08-1ubuntu0.1
	14.04 LTS trusty	Fixed 2.10.09-1ubuntu0.1

Notes

leosilva

Could reproduce by POC in git repport

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
nasm	Upstream: 6f8109e

Severity score breakdown

CVSS version: CVSS v3.0

Base score 5.5 · Medium

Base metrics

Parameter	Value
Attack vector	Local
Attack complexity	Low
Privileges required	None
User interaction	Required
Scope	Unchanged
Confidentiality impact	None
Integrity impact	None
Availability impact	High

Scores

Parameter	Value
Base score	5.5 · Medium
Exploitability score	-
Impact score	-

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

References

Related Ubuntu Security Notices (USN)

USN-3694-1
NASM vulnerabilities
28 June 2018

Other references

https://www.cve.org/CVERecord?id=CVE-2017-14228