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CVE Record

CVE-2018-19209: Netwide Assembler (NASM) 2.14rc15 has a NULL pointer dereference in the function find_label in asm/labels.c...

Netwide Assembler (NASM) 2.14rc15 has a NULL pointer dereference in the function find_label in asm/labels.c that will lead to a DoS attack.

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

This CVE describes a crash bug in NASM 2.14rc15. A malformed or unexpected assembly input can trigger a NULL pointer dereference and stop the assembler process. The public sources describe denial of service only, not code execution, privilege escalation, or data theft.

Executive priority

Treat this as a normal patch-management item unless NASM is exposed through a shared or user-facing build service. The documented impact is process denial of service, and the bundle provides no evidence of active exploitation.

Technical view

NASM 2.14rc15 contains a NULL pointer dereference in find_label within asm/labels.c. The CVE states this can lead to denial of service. The referenced upstream commit and SUSE Bugzilla entry are the available public remediation context, but the bundle does not provide CVSS, CWE, or full affected-version range.

Likely exposure

Exposure is most likely in systems, developer workstations, package builds, or CI services that run NASM 2.14rc15 against assembly input. Business exposure is higher if untrusted users can submit source files that NASM assembles automatically.

Exploitation context

The source bundle does not show active exploitation, and the CVE is not listed as KEV. It describes a denial-of-service condition only. No public source in the bundle supports remote compromise, weaponized exploitation, or impact beyond crashing NASM.

Researcher notes

Key gaps are missing CVSS, CWE, affected range, and explicit fixed release information. The strongest technical anchor is the upstream NASM commit reference tied to find_label in asm/labels.c. Avoid assuming impact beyond assembler crash without additional vendor evidence.

Mitigation direction

  • Inventory where NASM is installed and used in build workflows.
  • Check whether any environment uses NASM 2.14rc15 specifically.
  • Review upstream, distro, or vendor guidance for fixed NASM packages.
  • Upgrade to a vendor-supported fixed version where available.
  • Avoid processing untrusted assembly input in automated build services.

Validation and detection

  • Confirm deployed NASM versions across developer, CI, and packaging systems.
  • Check vendor package changelogs for the referenced upstream fix.
  • Review build services for user-submitted assembly processing paths.
  • Look for repeated NASM crashes in CI or build logs.
Prepared
Confidence
medium
Sources
4

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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CVE-2018-19209 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
3Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.