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CVE Record

CVE-2020-22044: A Denial of Service vulnerability exists in FFmpeg 4.2 due to a memory leak in the url_open_dyn_buf_interna...

A Denial of Service vulnerability exists in FFmpeg 4.2 due to a memory leak in the url_open_dyn_buf_internal function in libavformat/aviobuf.c.

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

FFmpeg 4.2 has a reported memory leak that can cause denial of service. For businesses, the practical risk is service instability where FFmpeg processes untrusted or high-volume media. The public sources do not provide CVSS severity or active exploitation evidence.

Executive priority

Treat this as a stability risk for media-processing systems, not a confirmed breach vector. Prioritize remediation where FFmpeg handles external media or supports customer-facing services. Urgency should be higher for exposed processing pipelines and lower for isolated internal tooling.

Technical view

CVE-2020-22044 describes a memory leak in FFmpeg 4.2, specifically url_open_dyn_buf_internal in libavformat/aviobuf.c. The reported impact is denial of service. Debian LTS published a security update for ffmpeg, but the source bundle does not detail vulnerable distributions, exploit prerequisites, or fixed upstream versions.

Likely exposure

Exposure is most likely where FFmpeg 4.2 processes media files or streams, especially from users or external parties. The provided CVE record lists affected vendor/product data as unavailable, so exact product scope is incomplete.

Exploitation context

The source bundle does not show CISA KEV listing or cited evidence of active exploitation. It only supports a denial-of-service memory leak claim and a Debian LTS security update reference.

Researcher notes

Evidence is limited to the CVE description, FFmpeg ticket reference, and Debian LTS advisory. No CVSS, CWE, detailed affected CPEs, exploit status, or precise fixed upstream version is present in the supplied bundle. Avoid over-scoping beyond FFmpeg 4.2 without vendor confirmation.

Mitigation direction

  • Inventory systems that run FFmpeg 4.2 or packages derived from it.
  • Check FFmpeg and operating-system vendor advisories for fixed packages.
  • Apply Debian LTS DLA 2818-1 updates if using affected Debian ffmpeg packages.
  • Prioritize update paths for services processing untrusted media.
  • Use normal resource monitoring while awaiting vendor-confirmed remediation.

Validation and detection

  • Confirm installed FFmpeg versions and package sources across servers and containers.
  • Identify workflows where external media reaches FFmpeg processing.
  • Verify whether Debian DLA 2818-1 or later package updates are installed.
  • Review service telemetry for unexplained memory growth or worker restarts.
  • Document any vendor guidance gaps before accepting residual risk.
Prepared
Confidence
medium
Sources
4

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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CVE-2020-22044 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.