Out-of-bounds Read in Nasm Netwide_assembler

CVE-2017-17818

In Netwide Assembler (NASM) 2.14rc0, there is a heap-based buffer over-read that will cause a remote denial of service attack, related to a while loop in paste_tokens in asm/preproc.c.

Vulnerability class: Buffer Overflow

EPSS: 0.007 (72.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

  • cve@mitre.org (x_refsource_UBUNTU, vendor-advisory, Third Party Advisory)
  • cve@mitre.org (Exploit, VDB Entry, Third Party Advisory, x_refsource_MISC, Issue Tracking)

Frequently asked questions

What is CVE-2017-17818?
CVE-2017-17818 is a high-severity vulnerability in Nasm Netwide_assembler, classified under Out-of-bounds Read. CVSS score: 7.5/10. Published 2017-12-21.
How severe is CVE-2017-17818?
High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2017-17818 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.