DCMTK dcmqrscp dcmqrcnf.cc readPeerList null pointer dereference
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · Low
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-404.
Summary
A vulnerability was detected in DCMTK up to 3.6.7. The impacted element is the function DcmQueryRetrieveConfig::readPeerList of the file /dcmqrcnf.cc of the component dcmqrscp. The manipulation results in null pointer dereference. The attack needs to be approached locally. The exploit is now public and may be used. Upgrading to version 3.6.8 is sufficient to resolve this issue. The patch is identified as 957fb31e5. Upgrading the affected component is advised.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | DCMTK | 3.6.0; 3.6.1; 3.6.2; 3.6.3; 3.6.4; 3.6.5; 3.6.6; 3.6.7 | 3.6.8 | Patch available | CNA |
- DCMTK Vendor— Affected 3.6.0; 3.6.1; 3.6.2; 3.6.3; 3.6.4; 3.6.5; 3.6.6; 3.6.7 Fixed in 3.6.8 Patch available CNA
Remediation
- Fix · CNA DCMTK Fixed in 3.6.8
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2022-4981
- 2026-10-03 Alias added: GHSA-v454-8grj-83c8
References
More OFFIS Dcmtk vulnerabilities
- TI-2025-08922 DCMTK dcm2img diybrpxt.h memory corruption CVSS 4.0MEDIUM 4.8
- TI-2020-18990 DCMTK dcmqrscp parseQuota stack-based overflow CVSS 4.0MEDIUM 4.8
- TI-2024-22823 dcmnet in DCMTK before 3.6.9 has a segmentation fault via an invalid DIMSE message. CVSS 3.1MEDIUM 4.3
- TI-2019-16028 Out-of-bounds write in OFFIS.de DCMTK CVSS 3.1CRITICAL 9.8
- TI-2022-01961 OFFIS DCMTK Path Traversal CVSS 3.1CRITICAL 9.8
- TI-2022-01960 OFFIS DCMTK Path Traversal CVSS 3.1CRITICAL 9.8
Sources
- CVE-2022-4981 · CVE Program
- CVE-2022-4981 · NVD
- FIRST EPSS
- GHSA-v454-8grj-83c8 · GitHub Advisory Database · CC BY 4.0
- CVE-2022-4981 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences