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CVE-2017-17815

Published: 20 December 2017

In Netwide Assembler (NASM) 2.14rc0, there is an illegal address access in is_mmacro() in asm/preproc.c that will cause a remote denial of service attack, because of a missing check for the relationship between minimum and maximum parameter counts.

Priority

Low

Cvss 3 Severity Score

5.5

Score breakdown

Status

Package Release Status
nasm
Launchpad, Ubuntu, Debian
upstream
Released (2.13.02)
precise Does not exist

trusty Does not exist
(trusty was released [2.10.09-1ubuntu0.1])
xenial
Released (2.11.08-1ubuntu0.1)
artful
Released (2.13.01-2ubuntu0.1)
bionic Not vulnerable
(2.13.02-0.1)
Patches:
upstream: http://repo.or.cz/nasm.git/commit/c9244eaadd05b27637cde06021bac3fa1d920aa3

Severity score breakdown

Parameter Value
Base score 5.5
Attack vector Local
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H