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CVE-2020-22022: A heap-based Buffer Overflow vulnerability exists in FFmpeg 4.2 in filter_frame at libavfilter/vf_fieldorde...

A heap-based Buffer Overflow vulnerability exists in FFmpeg 4.2 in filter_frame at libavfilter/vf_fieldorder.c, which might lead to memory corruption and other potential consequences.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

This CVE concerns a heap-based buffer overflow in FFmpeg 4.2's fieldorder video filter. If vulnerable FFmpeg processes crafted or unexpected media, memory corruption could occur. Sources do not provide CVSS, confirmed exploitation, or a complete vendor impact matrix, so urgency depends on whether FFmpeg handles untrusted media in your environment.

Executive priority

Give this moderate operational attention where FFmpeg processes untrusted media, but avoid emergency framing unless your inventory confirms exposed vulnerable deployments. The public bundle lacks CVSS and exploitation evidence, making asset discovery and vendor patch verification the immediate priorities.

Technical view

The issue is reported in filter_frame within libavfilter/vf_fieldorder.c. The source bundle describes heap memory corruption and potential follow-on consequences but does not document exact affected downstream packages, exploitability, or fixed upstream commit. Debian published security updates in DLA-2742-1 and DSA-4990.

Likely exposure

Exposure is most likely on systems running FFmpeg 4.2 or affected packaged builds that process media supplied by users, partners, or the internet. Internal-only media conversion services have lower practical exposure, but should still be inventoried because FFmpeg is often embedded in applications.

Exploitation context

The provided sources do not show CISA KEV listing or confirmed active exploitation. They also do not provide exploit maturity details. Treat this as a memory-safety issue requiring patch review, especially where FFmpeg processes untrusted video content.

Researcher notes

Key evidence is limited to the CVE description, FFmpeg tracker reference, and Debian advisories. The affected record is sparse, with no CVSS, CWE, CPE, or KEV signal. Further analysis should focus on upstream fix history and downstream package version mapping.

Mitigation direction

  • Identify all FFmpeg installations, including application-bundled copies and containers.
  • Apply the relevant Debian security update where Debian packages are used.
  • Check FFmpeg and operating-system vendor guidance for fixed versions.
  • Prioritize systems processing untrusted or internet-supplied media.
  • Reduce exposure by limiting accepted media sources until patched.

Validation and detection

  • Confirm installed FFmpeg versions against vendor security advisories.
  • Verify Debian hosts have the DSA-4990 or DLA-2742-1 update applied.
  • Review media-processing workflows for fieldorder filter usage and untrusted inputs.
  • Check containers and third-party applications for bundled FFmpeg builds.
  • Document remaining unknowns where vendor impact data is unavailable.
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

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

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CVE-2020-22022 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.