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CVE Record

CVE-2020-22015: Buffer Overflow vulnerability in FFmpeg 4.2 in mov_write_video_tag due to the out of bounds in libavformat/...

Buffer Overflow vulnerability in FFmpeg 4.2 in mov_write_video_tag due to the out of bounds in libavformat/movenc.c, which could let a remote malicious user obtain sensitive information, cause a Denial of Service, or execute arbitrary code.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

CVE-2020-22015 is reported as a buffer overflow in FFmpeg 4.2 when writing MOV/MP4 video metadata. If an affected FFmpeg workflow processes malicious media, reported outcomes include information disclosure, denial of service, or arbitrary code execution.

Executive priority

Prioritize remediation for services that accept or transform untrusted media. For internal-only FFmpeg use with trusted files, urgency is lower but still warrants normal patch management.

Technical view

The report places the flaw in libavformat/movenc.c, specifically mov_write_video_tag, with an out-of-bounds condition. The provided bundle does not include CVSS, CWE, precise affected package ranges, or upstream patch details. Debian published FFmpeg security updates in 2021.

Likely exposure

Exposure is most likely where FFmpeg 4.2, or downstream packages carrying the vulnerable code, process media from untrusted users, customers, partners, or public uploads.

Exploitation context

The bundle does not show CISA KEV listing or cited active exploitation. Treat exploit status as unconfirmed. Risk depends on whether attackers can supply media to affected FFmpeg processing paths.

Researcher notes

Evidence is thin: no CVSS, CWE, affected CPEs, or patch commit is included in the bundle. The core claim is an out-of-bounds buffer overflow in mov_write_video_tag, with Debian advisories confirming security updates.

Mitigation direction

  • Identify systems running FFmpeg 4.2 or Debian ffmpeg packages from the advisory period.
  • Apply vendor-supported FFmpeg or operating system security updates.
  • Prioritize internet-facing and user-upload media processing services.
  • Restrict untrusted media processing until vendor guidance is applied.
  • Check FFmpeg and distribution advisories for exact fixed versions.

Validation and detection

  • Inventory FFmpeg versions across servers, containers, build images, and media workers.
  • Confirm whether workflows write MOV/MP4 output from untrusted input.
  • Review Debian DSA-4990 and DLA-2742-1 applicability to deployed packages.
  • Verify patched package versions through standard asset or package management records.
  • Check logs for unexplained FFmpeg crashes in exposed media pipelines.
Prepared
Confidence
medium
Sources
5

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

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ATT&CK lookup starting points

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Execution behavior lookup

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CVE-2020-22015 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
4Source 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.