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
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.008 (53.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 53rd percentile — 53.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000
Affected products
- Nasm Netwide Assembler — versions 2.14.01rc5, 2.15
Weakness classification (CWE)
Public proof-of-concept exploits
References
- bugzilla.nasm.us/show_bug.cgi (Exploit, Third Party Advisory, 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.