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CVE Record

CVE-2018-10392: mapping0_forward in mapping0.c in Xiph.Org libvorbis 1.3.6 does not validate the number of channels, which...

mapping0_forward in mapping0.c in Xiph.Org libvorbis 1.3.6 does not validate the number of channels, which allows remote attackers to cause a denial of service (heap-based buffer overflow or over-read) or possibly have unspecified other impact via a crafted file.

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2018-10392 is a memory-safety flaw in Xiph.Org libvorbis 1.3.6. A malicious audio file can make software using libvorbis crash or read past intended memory. The public bundle does not provide CVSS scoring or evidence of active exploitation.

Executive priority

Treat this as a moderate patching priority, higher where customer-supplied media is processed automatically. The main evidenced impact is service disruption, with incomplete evidence for broader compromise.

Technical view

mapping0_forward in mapping0.c fails to validate the number of channels. Processing a crafted Vorbis file can trigger heap-based buffer overflow or over-read, causing denial of service and possibly unspecified other impact. The bundle names libvorbis 1.3.6 but lacks precise fixed upstream version details.

Likely exposure

Exposure is most likely in servers, desktops, media pipelines, browsers, converters, or applications that parse untrusted Ogg/Vorbis audio through libvorbis or distribution packages derived from it.

Exploitation context

The bundle supports remote attacker control through a crafted file. It does not show CISA KEV listing, active exploitation, public exploit maturity, or real-world campaign evidence.

Researcher notes

Key uncertainty is evidence depth: no CVSS, CWE, exploit status, or fixed upstream version is included. Focus validation on dependency resolution, packaged libvorbis builds, and reachable media parsing paths.

Mitigation direction

  • Apply libvorbis security updates from your operating system or application vendor.
  • Check Red Hat, Debian, Gentoo, and upstream Xiph guidance for fixed package details.
  • Prioritize systems that automatically parse uploaded or externally supplied audio files.
  • Reduce exposure by blocking untrusted Vorbis processing until patched where feasible.

Validation and detection

  • Inventory installed packages and bundled dependencies for Xiph.Org libvorbis 1.3.6.
  • Verify scanners map CVE-2018-10392 to OS and application libvorbis packages.
  • Confirm patched package versions against your vendor advisory, not only upstream names.
  • Review media-processing services for untrusted audio ingestion paths.
Prepared
Confidence
medium
Sources
7

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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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
6Source 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.