What is CVE-2018-1000886?

CVE-2018-1000886 is a medium-severity vulnerability in Nasm Netwide Assembler, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 5.5/10. Published 2018-12-20.

How severe is CVE-2018-1000886?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Is CVE-2018-1000886 known to be exploited?

6 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Nasm Netwide Assembler

CVE-2018-1000886

nasm version 2.14.01rc5, 2.15 contains a Buffer Overflow vulnerability in asm/stdscan.c:130 that can result in Stack-overflow caused by triggering endless macro generation, crash the program. This attack appear to be exploitable via a crafted nasm input file.

Vulnerability class: Buffer Overflow

EPSS: 0.008 (51.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 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.

Affected products

Nasm Netwide_assembler — versions 2.14.01rc5, 2.15
N/a — versions n/a

Weakness classification (CWE)

CWE-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer

Public proof-of-concept exploits

References

cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC, Issue Tracking)

Frequently asked questions

What is CVE-2018-1000886?: CVE-2018-1000886 is a medium-severity vulnerability in Nasm Netwide Assembler, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 5.5/10. Published 2018-12-20.
How severe is CVE-2018-1000886?: Medium severity. CVSS v3 base score is 5.5 out of 10.
Is CVE-2018-1000886 known to be exploited?: 6 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.