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CVE Record

CVE-2018-19758: There is a heap-based buffer over-read at wav.c in wav_write_header in libsndfile 1.0.28 that will cause a...

There is a heap-based buffer over-read at wav.c in wav_write_header in libsndfile 1.0.28 that will cause a denial of service.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2018-19758 is a denial-of-service issue in libsndfile 1.0.28. A heap-based buffer over-read in WAV header writing can crash or disrupt software using the library. The available bundle does not provide CVSS scoring, confirmed affected distributions beyond advisory references, or evidence of active exploitation.

Executive priority

Prioritize remediation for internet-facing or business-critical audio processing systems. For general desktops or internal tools, handle through normal vulnerability patch cycles unless uptime risk is high.

Technical view

The CVE describes a heap-based buffer over-read in wav.c, specifically wav_write_header, in libsndfile 1.0.28. The stated impact is denial of service. Debian LTS and Ubuntu published libsndfile security updates; no source bundle evidence identifies code execution, privilege escalation, or active exploitation.

Likely exposure

Exposure is most likely in applications or services linked against libsndfile 1.0.28, especially media processing, audio conversion, or upload workflows that reach WAV output logic. Distribution packages may also be affected where Debian or Ubuntu advisories apply.

Exploitation context

The source bundle supports denial of service only. It does not include exploit details, public exploit status, or KEV listing. Treat active exploitation as unconfirmed and validate exposure through dependency and package inventory rather than assumptions.

Researcher notes

Evidence is sparse: no CVSS, CWE, detailed affected CPEs, or exploit telemetry are provided. The strongest facts are the libsndfile 1.0.28 WAV header over-read, denial-of-service impact, and Debian/Ubuntu security update references.

Mitigation direction

  • Apply relevant Debian LTS or Ubuntu libsndfile security updates where applicable.
  • Upgrade libsndfile from 1.0.28 to a vendor-supported fixed package.
  • Check non-Debian and non-Ubuntu vendors for their libsndfile guidance.
  • Limit untrusted audio processing until patched if availability matters.

Validation and detection

  • Inventory hosts, containers, and applications for libsndfile 1.0.28.
  • Check package manager advisory status against Debian or Ubuntu notices.
  • Identify services that process uploaded or externally supplied audio.
  • Confirm patched package versions in build images and runtime environments.
Prepared
Confidence
medium
Sources
6

Public sources used

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

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.

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CVE-2018-19758 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
5Source 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.