Security readout for executives and security teams
Plain-English summary
This flaw can make software using libde265 crash when it processes a specially crafted video file. The main business impact is service disruption, not data theft or system takeover. The source bundle confirms Debian security updates, but does not show active exploitation.
Executive priority
Treat this as a moderate availability risk. It deserves timely patching on systems that process outside video content, especially customer uploads or automated media pipelines. It is lower urgency than code execution or data exposure issues.
Technical view
CVE-2022-43238 is a libde265 v1.0.8 denial-of-service issue tied to an unknown crash in ff_hevc_put_hevc_qpel_h_3_v_3_sse in sse-motion.cc. CVSS 3.1 is 6.5 with user interaction required and high availability impact only.
Likely exposure
Exposure is most likely where libde265 decodes user-supplied HEVC/H.265 video files, directly or through downstream packages. The source bundle identifies libde265 v1.0.8 but provides no CPEs or broader affected product list.
Exploitation context
The cited CVE description says an attacker can cause denial of service using a crafted video file. KEV is false, and the provided sources do not establish active exploitation in the wild.
Researcher notes
Evidence is limited to a crash in a named SSE motion routine and downstream Debian advisories. The bundle does not include root-cause detail, exploit maturity, CPEs, or a complete upstream fixed-version mapping.
Mitigation direction
- Apply Debian libde265 security updates where Debian packages are in use.
- For non-Debian systems, check libde265 or vendor guidance for fixed versions.
- Prioritize systems that automatically process untrusted video uploads.
- Sandbox or isolate media decoding workflows until updated.
- Restrict untrusted HEVC/H.265 file processing where operationally feasible.
Validation and detection
- Inventory hosts, containers, and applications using libde265.
- Check whether deployed libde265 versions include vendor security updates.
- Map workflows that decode user-submitted or externally sourced video files.
- Review monitoring for media-processing crashes or repeated decoder failures.
- Confirm Debian DSA-5346 or DLA-3280-1 applicability on Debian systems.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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ATT&CK lookup starting points
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CWE-400: Exact CWE lookup
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Open ATT&CK lookupCVE-2022-43238 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 6.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
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.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H2.83.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.5MediumVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/strukturag/libde265/issues/336CVE reference
- [debian-lts-announce] 20230124 [SECURITY] [DLA 3280-1] libde265 security updateCVE reference · mailing-list
- DSA-5346CVE reference · vendor-advisory
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Uncontrolled Resource Consumption
Uncontrolled Resource Consumption represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.