CVE-2020-36855
DCMTK dcmqrscp parseQuota stack-based overflow
- State
- Published
- Severity
- 4.8 Medium
- Published
- Oct 21, 2025
- Updated
- Oct 21, 2025
- Reserved
- Oct 19, 2025
Description
A security vulnerability has been detected in DCMTK up to 3.6.5. The affected element is the function parseQuota of the component dcmqrscp. The manipulation of the argument StorageQuota leads to stack-based buffer overflow. Local access is required to approach this attack. The exploit has been disclosed publicly and may be used. Upgrading to version 3.6.6 is sufficient to fix this issue. The identifier of the patch is 0fef9f02e. It is recommended to upgrade the affected component.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 4.8 Medium | CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P | VulDB |
| 3.1 | 5.3 Medium | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C | VulDB |
| 3.0 | 5.3 Medium | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C | VulDB |
| 2.0 | 4.3 Medium | AV:L/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:OF/RC:C | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
DCMTKn/a |
|
References
- VDB-329028 | DCMTK dcmqrscp parseQuota stack-based overflowvdb-entrytechnical-description
- VDB-329028 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
- Submit #673137 | DCMTK GitHub Repository DCMTK 3.6.5 Stack-based Buffer Overflowthird-party-advisory
- https://shimo.im/docs/rp3OMVMDPKtjn0km/exploit
- https://shimo.im/docs/rp3OMVMDPKtjn0km/readexploit
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