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CVE-2017-14228: In Netwide Assembler (NASM) 2.14rc0, there is an illegal address access in the function paste_tokens() in p...

In Netwide Assembler (NASM) 2.14rc0, there is an illegal address access in the function paste_tokens() in preproc.c, aka a NULL pointer dereference. It will lead to remote denial of service.

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

NASM 2.14rc0 can crash when processing a crafted input, causing a denial of service. The business risk is disruption to systems that automatically assemble untrusted or externally supplied code, such as build services, analysis sandboxes, or developer platforms.

Executive priority

Prioritize remediation for internet-facing or multi-tenant build and analysis services. For ordinary developer workstations, handle through normal patch management unless they process untrusted code at scale.

Technical view

The reported flaw is an illegal address access, described as a NULL pointer dereference, in paste_tokens() in NASM preproc.c. Sources describe the impact as remote denial of service. The provided bundle does not include CVSS, CWE, CPEs, or detailed fixed-version data.

Likely exposure

Exposure is likely limited to environments where NASM processes attacker-controlled assembly or macro/preprocessor input. Ordinary systems with NASM installed but not exposed to untrusted inputs have lower practical risk. The bundle identifies NASM 2.14rc0, but does not provide a complete affected-version range.

Exploitation context

The CVE is not listed in KEV, and the supplied sources do not state active exploitation. Practical exploitation appears to require a path for an attacker to make NASM process crafted input, resulting in a crash rather than code execution based on the provided description.

Researcher notes

Evidence is sparse: the bundle names paste_tokens() in preproc.c and NULL pointer dereference, but lacks CVSS, CPEs, CWE mapping, exploit details, and fixed-version specifics. Treat affected-version scope as incomplete and verify against vendor advisories.

Mitigation direction

  • Check vendor NASM guidance for the applicable fixed package or version.
  • Apply relevant Ubuntu, Gentoo, or upstream NASM updates where applicable.
  • Avoid processing untrusted assembly inputs with vulnerable NASM builds.
  • Isolate automated build or analysis workers that run NASM.

Validation and detection

  • Inventory systems and build images for NASM 2.14rc0 or related vulnerable packages.
  • Review CI, sandbox, and upload workflows for attacker-controlled NASM inputs.
  • Confirm patched NASM packages against applicable vendor advisories.
  • Monitor build services for repeated NASM crashes or abnormal job failures.
Prepared
Confidence
medium
Sources
5

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

Potential ATT&CK relevance

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CVE-2017-14228 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
4Source links

CVSS and timeline data

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

Source materials

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.