CVE-2017-17815 Information

Description

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.

CVSS Vector

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

Reference

http://repo.or.cz/nasm.git/commit/c9244eaadd05b27637cde06021bac3fa1d920aa3 https://bugzilla.nasm.us/show_bug.cgi?id=3392436 https://usn.ubuntu.com/3694-1/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

5.5