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CVE Record

CVE-2017-9987: There is a heap-based buffer overflow in the function hpel_motion in mpegvideo_motion.c in libav 12.1.

There is a heap-based buffer overflow in the function hpel_motion in mpegvideo_motion.c in libav 12.1. A crafted input can lead to a remote denial of service attack.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2017-9987 is a Libav media-processing flaw where a specially crafted input can crash software that decodes it. The documented impact is remote denial of service, not data theft or code execution. Business urgency is highest for services that accept or process untrusted video or media files.

Executive priority

Treat this as a targeted availability risk. It should be scheduled promptly for media-facing systems, especially customer upload or transcoding services, but the provided evidence does not justify emergency treatment for systems that do not process untrusted media.

Technical view

The CVE describes a heap-based buffer overflow in hpel_motion in mpegvideo_motion.c in Libav 12.1. The available description states crafted input can cause remote denial of service. No CVSS score, CWE, detailed affected CPEs, or exploit-in-the-wild evidence are provided in the source bundle.

Likely exposure

Exposure is most likely where Libav 12.1, or downstream packages carrying the vulnerable code, process untrusted multimedia. This includes upload pipelines, transcoding jobs, preview generators, and user-supplied media analysis workflows. The source bundle does not identify broader affected products beyond Libav 12.1.

Exploitation context

The source bundle supports denial of service through crafted input. It does not support active exploitation, public weaponization, authentication requirements, or code execution claims. CVE KEV status is false, and the cited sources do not report exploitation in the wild.

Researcher notes

Key gaps are missing CVSS, CWE, CPEs, fixed version details, and exploit telemetry. Analysis should stay bounded to Libav 12.1 and downstream vendor packages referenced by Debian unless additional vendor evidence is obtained.

Mitigation direction

  • Identify systems using Libav 12.1 or affected downstream Libav packages.
  • Apply vendor security updates, including Debian guidance where applicable.
  • For non-Debian systems, check the relevant vendor advisory before assuming fixed versions.
  • Restrict or isolate processing of untrusted media until updates are confirmed.
  • Prioritize internet-facing upload, transcoding, and media preview services.

Validation and detection

  • Inventory installed Libav packages and embedded media-processing dependencies.
  • Confirm vendor security updates have been applied on affected systems.
  • Map applications that process untrusted multimedia using Libav.
  • Review service crash history around media ingestion workflows.
  • Verify compensating isolation exists for media-processing workloads.
Prepared
Confidence
medium
Sources
4

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-2017-9987 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
3Source 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.