PT-2018-9602 · Netwide Assembler+1 · Nasm+1

Situlingyun · Published 2018-12-20 · Updated 2019-02-01 · CVE-2018-1000886

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions: nasm versions 2.14.01rc5 through 2.15

Description: The issue is related to a Buffer Overflow in the asm/stdscan.c file at line 130, which can cause a stack-overflow due to endless macro generation when triggered by a crafted nasm input file, leading to a program crash.

Recommendations: For nasm versions 2.14.01rc5 through 2.15, consider disabling the macro generation feature as a temporary workaround until a patch is available. Restrict access to the asm/stdscan.c file to minimize the risk of exploitation. Avoid using crafted nasm input files that can trigger the endless macro generation.

Exploit

Fix

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

CVE-2018-1000886

Affected Products

Debian

Nasm

References · 11

• 🔥 https://bugzilla.nasm.us/show_bug.cgi?id=3392514 · Exploit
• https://security-tracker.debian.org/tracker/CVE-2018-1000886 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-1000886 · Vendor Advisory
• https://security-tracker.debian.org/tracker/source-package/nasm · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2018-1000886 · Security Note
• https://cve.org/CVERecord?id=CVE-2018-1000886 · Security Note
• https://osv.dev/vulnerability/CVE-2018-1000886 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2018-1000886 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2018-1000886 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-1000886 · Security Note
• https://packages.debian.org/src:nasm · Note