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CVE Record

CVE-2022-43240: Libde265 v1.0.8 was discovered to contain a heap-buffer-overflow vulnerability via ff_hevc_put_hevc_qpel_h_...

Libde265 v1.0.8 was discovered to contain a heap-buffer-overflow vulnerability via ff_hevc_put_hevc_qpel_h_2_v_1_sse in sse-motion.cc. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted video file.

MediumCVSS 6.5Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2022-43240 is a denial-of-service flaw in libde265 v1.0.8. A specially crafted video file can crash software that processes it. The main business risk is disrupted media processing or service availability, not data theft or system takeover based on the provided sources.

Executive priority

Treat this as a moderate availability risk. Prioritize remediation on internet-facing upload paths, customer-facing media workflows, and automated video-processing pipelines where a crash could interrupt service.

Technical view

The issue is a CWE-787 heap buffer overflow in libde265's ff_hevc_put_hevc_qpel_h_2_v_1_sse function in sse-motion.cc. CVSS 3.1 is 6.5 with network attack vector, low complexity, no privileges, required user interaction, and high availability impact only.

Likely exposure

Exposure is most likely where applications, services, or batch jobs process untrusted HEVC/H.265 video using libde265 v1.0.8 or vulnerable distribution packages. The source bundle does not provide CPEs or a complete affected-product list.

Exploitation context

Sources describe denial of service through a crafted video file. The CVSS vector requires user interaction. CISA KEV status is false, and no provided source states active exploitation in the wild.

Researcher notes

The public record identifies the vulnerable function and DoS impact but gives no CPE mapping in the provided bundle. Avoid assuming broader products beyond libde265 and vendor-packaged libde265 updates. Focus validation on dependency presence, package status, and crash exposure paths.

Mitigation direction

  • Upgrade libde265 using applicable Debian DSA-5346 or DLA-3280-1 packages.
  • Check upstream and operating-system vendor guidance for fixed versions.
  • Reduce exposure to untrusted video uploads where practical.
  • Run video processing in isolated, restartable worker environments.
  • Monitor media-processing services for repeated crashes or abnormal terminations.

Validation and detection

  • Inventory systems and containers for libde265 v1.0.8.
  • Confirm Debian or vendor security updates are installed where applicable.
  • Verify SBOM or vulnerability scans no longer report CVE-2022-43240.
  • Review crash logs for libde265 or HEVC decoding failures.
  • Confirm untrusted video processing is isolated from critical services.
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

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · low confidence lookup

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.

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cve · low confidence lookup

CVE-2022-43240 mapping review

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Vulnerability profileCVE Program record
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

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.

1CVSS vectors
0Timeline events
0ADP providers
4Source links

CVSS vector scores

1 official score

We 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.

ScoreVersionSeverityVectorExploitImpactSource
6.5CVSS 3.1MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H2.83.6Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

6.5Medium
CVSS 3.1 vector shape for CVE-2022-43240Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

CWE-787

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.