Security readout for executives and security teams
Plain-English summary
A flaw in libde265 v1.0.8 can crash software that processes a specially crafted video file. The public record points to denial of service, not data theft or system takeover. Business urgency is highest where untrusted video uploads, email attachments, or media-processing pipelines reach libde265.
Executive priority
Prioritize patching on internet-facing upload services and automated media pipelines. This is not currently evidenced as a widespread exploitation issue, but it can disrupt availability where video processing is business-critical.
Technical view
CVE-2022-43244 is a CWE-787 heap-buffer-overflow in put_qpel_fallback<unsigned short> in fallback-motion.cc. CVSS 3.1 is 6.5 with user interaction required, no confidentiality or integrity impact, and high availability impact. Debian published security updates, but the bundle does not provide complete affected CPE metadata.
Likely exposure
Exposure is likely in systems, applications, or distribution packages that include libde265 and process HEVC/H.265 video content. The bundle names libde265 v1.0.8 and Debian advisories, but does not enumerate all affected downstream products.
Exploitation context
The provided sources describe a denial-of-service condition triggered by a crafted video file. KEV is false, and no cited source in the bundle states active exploitation in the wild.
Researcher notes
The record identifies the vulnerable function and impact but has incomplete product metadata in the supplied bundle. Validate exposure through actual dependency/package inventory rather than relying on CPE matching alone.
Mitigation direction
- Apply Debian DLA-3280-1 or DSA-5346 updates where applicable.
- For non-Debian systems, check upstream and OS vendor libde265 guidance.
- Limit untrusted video processing until affected components are updated.
- Run media decoding in isolated, least-privilege processing environments.
Validation and detection
- Inventory systems and applications that include libde265.
- Confirm whether libde265 v1.0.8 or vulnerable distribution packages are present.
- Verify Debian security updates are installed where Debian packages are used.
- Review media-processing services for crashes linked to HEVC decoding.
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-2022-43244 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/342CVE 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.