Security readout for executives and security teams
Plain-English summary
CVE-2019-14248 is a NULL pointer dereference in NASM 2.14.xx handling of "%pragma limit". In practical terms, crafted assembly input may cause NASM or software using libnasm.a to crash. The sources do not provide CVSS, confirmed affected package metadata, active exploitation, or a named fixed version.
Executive priority
Treat as a maintenance-tracked vulnerability unless your business processes untrusted assembly files. If untrusted code is assembled in CI or customer-facing workflows, prioritize isolation and vendor-update review.
Technical view
The CVE describes asm/pragma.c mishandling "%pragma limit", reaching NULL pointer dereferences in process_pragma, search_pragma_list, and nasm_set_limit within libnasm.a. The public record identifies NASM 2.14.xx, but the provided affected-product fields are incomplete and list n/a.
Likely exposure
Exposure is most likely in build systems, developer tools, package pipelines, or services that run NASM 2.14.xx or embed libnasm.a against untrusted assembly input. Systems compiling only trusted internal source have lower practical exposure.
Exploitation context
The CVE is not listed as KEV in the supplied bundle, and no cited source confirms active exploitation. The described weakness suggests crash-oriented denial of service, but the public bundle does not quantify impact or exploitability.
Researcher notes
Evidence is thin: no CVSS vector, CWE mapping, affected CPEs, or explicit fixed version are supplied. Analysis should stay limited to NASM 2.14.xx pragma handling and potential crash behavior from NULL pointer dereference.
Mitigation direction
- Inventory NASM and libnasm.a versions across build and packaging environments.
- Check NASM maintainer guidance and Bugzilla for fixed releases or backports.
- Avoid processing untrusted assembly source with affected NASM versions.
- Run risky assembly processing in isolated, disposable build workers.
Validation and detection
- Confirm whether any environment uses NASM 2.14.xx or bundled libnasm.a.
- Identify pipelines or services accepting third-party assembly input.
- Review the NASM Bugzilla reference for maintainer status and fix notes.
- After updating, verify normal assembly builds still complete successfully.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2019-14248 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://bugzilla.nasm.us/show_bug.cgi?id=3392576CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.