Security readout for executives and security teams
Plain-English summary
CVE-2018-19662 is a libsndfile 1.0.28 flaw that can crash software processing certain audio data. The known impact is denial of service, not data theft or code execution, based on the provided sources.
Executive priority
Schedule remediation in normal vulnerability management, with higher priority for automated or public-facing audio processing. The business risk is service disruption, and available evidence does not support emergency treatment.
Technical view
The issue is a buffer over-read in libsndfile's i2alaw_array function in alaw.c. The CVE description says it can lead to denial of service. Debian and Ubuntu issued libsndfile security updates, but the bundle does not provide CVSS, CWE, or exact fixed versions.
Likely exposure
Exposure is most likely where applications, services, containers, or desktop workflows parse untrusted audio through libsndfile. The bundle only names libsndfile 1.0.28 and does not enumerate downstream affected products.
Exploitation context
The source bundle does not show CISA KEV listing or active exploitation evidence. Treat this as a malformed-media denial-of-service risk unless vendor advisories identify broader impact.
Researcher notes
Evidence is narrow: libsndfile 1.0.28, i2alaw_array, buffer over-read, denial of service. The bundle lacks CVSS, CWE, exploitability details, and exact fixed versions, so validation should rely on vendor package advisories.
Mitigation direction
- Update libsndfile through applicable Debian, Ubuntu, or upstream vendor security packages.
- Check vendor advisories for exact fixed package versions before closing remediation tickets.
- Reduce processing of untrusted audio files on systems that cannot be updated promptly.
- Prioritize internet-facing or automated media-processing services before desktop-only use cases.
Validation and detection
- Inventory installed libsndfile versions across hosts, containers, and application images.
- Confirm whether any service parses user-supplied audio through libsndfile.
- Verify remediation against Debian, Ubuntu, or upstream advisory package versions.
- Record exceptions where libsndfile is unused or only processes trusted local files.
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-2018-19662 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
- [debian-lts-announce] 20181226 [SECURITY] [DLA 1618-1] libsndfile security updateCVE reference · mailing-list, x_refsource_MLIST
- https://github.com/erikd/libsndfile/issues/429CVE reference · x_refsource_MISC
- USN-4013-1CVE reference · vendor-advisory, x_refsource_UBUNTU
- [debian-lts-announce] 20201029 [SECURITY] [DLA 2418-1] libsndfile security updateCVE reference · mailing-list, x_refsource_MLIST
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.