Security readout for executives and security teams
Plain-English summary
CVE-2022-43241 is a denial-of-service flaw in libde265 v1.0.8, a library used to decode HEVC/H.265 video. A crafted video file can crash the decoder, disrupting any workflow that processes untrusted videos. The source bundle does not show data theft, code execution, or confirmed active exploitation.
Executive priority
Prioritize patching where video files from customers, partners, or the public are processed automatically. The likely business impact is service interruption rather than compromise of confidentiality or integrity. For internal-only playback systems, schedule through normal security maintenance unless exposure is broader.
Technical view
The CVE describes an out-of-bounds write class issue, CWE-787, causing an unknown crash in ff_hevc_put_hevc_qpel_v_3_8_sse within sse-motion.cc. CVSS 3.1 is 6.5: network-reachable content delivery, low complexity, no privileges, user interaction required, unchanged scope, and high availability impact only.
Likely exposure
Exposure is most likely where libde265 v1.0.8 or vulnerable distribution packages decode user-supplied HEVC/H.265 video, including media ingestion, preview, transcoding, or desktop playback paths. The bundle does not identify specific downstream applications beyond libde265 and Debian package advisories.
Exploitation context
The described attack path is a crafted video file that must be opened or processed by a vulnerable decoder. The bundle marks KEV as false and provides no cited evidence of active exploitation. Treat this as a reliability and service-continuity risk, especially for automated media-processing systems.
Researcher notes
Evidence is limited to the CVE description, GitHub issue reference, and Debian advisories. The affected metadata in the bundle is incomplete, listing vendor and product as n/a despite the description naming libde265 v1.0.8. Do not infer additional affected products without vendor confirmation.
Mitigation direction
- Update libde265 using vendor or distribution security packages.
- Apply Debian DLA 3280-1 or DSA-5346 guidance where applicable.
- Avoid processing untrusted HEVC/H.265 files on unpatched systems.
- Check upstream or OS vendor guidance for non-Debian environments.
- Rebuild or redeploy dependent containers after library updates.
Validation and detection
- Inventory systems and images for libde265 v1.0.8 or vulnerable packages.
- Confirm security scanners recognize Debian DLA 3280-1 or DSA-5346 fixes.
- Identify services that decode externally supplied HEVC/H.265 media.
- Verify patched libraries are loaded after service restart or redeployment.
- Review crash telemetry for decoder failures tied to video processing.
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
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
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-787: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2022-43241 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/338CVE 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.
Out-of-bounds Write
Out-of-bounds Write represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.