CVE catalog

CVE-2018-20538

nasm: CVE-2018-20538

[CVE catalog]

Severity
Low · CVSS 3.3CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
Published
Source
[NVD] · [CVE record]
EPSS
0.79% · Oct 27, 2026

There is a use-after-free at asm/preproc.c (function pp_getline) in Netwide Assembler (NASM) 2.14rc16 that will cause a denial of service during certain finishes tests.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

DistributionPackageReleaseVersionStatus
Debiannasmsid3.01-1vulnerable
Debiannasmforky3.01-1vulnerable
Debiannasmtrixie2.16.03-1vulnerable
Debiannasmbookworm2.16.01-1vulnerable

Fixed-version evidence

DistributionPackageTypeReleaseFixed versionUrgencyOriginBugs
Debiannasmsourcesid(unfixed)unimportantNot reported[918269]
Debiannasmsourceforky(unfixed)unimportantNot reported[918269]
Debiannasmsourcetrixie(unfixed)unimportantNot reported[918269]
Debiannasmsourcebookworm(unfixed)unimportantNot reported[918269]

[Debian bug #918269]

OpenFactory catalog packages

[Debian 12 (Bookworm)]

  • [nasm]Affected
    Details (2)

    • 2.16.01-1 · amd64 · bookworm

      Affected

      dsa · nasm · debian · bookworm; dsa · nasm · debian · 12

    • 2.16.01-1 · arm64 · bookworm

      Affected

      dsa · nasm · debian · bookworm; dsa · nasm · debian · 12

[Debian 13 (Trixie)]

  • [nasm]Affected
    Details (2)

    • 2.16.03-1 · amd64 · trixie

      Affected

      dsa · nasm · debian · 13

    • 2.16.03-1 · arm64 · trixie

      Affected

      dsa · nasm · debian · 13

Observed:

References

[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]