CVE-2025-7209
9fans plan9port x509.c value_decode null pointer dereference
- State
- Published
- Severity
- 4.8 Medium
- Published
- Jul 9, 2025
- Updated
- Jul 9, 2025
- Reserved
- Jul 7, 2025
Description
A vulnerability has been found in 9fans plan9port up to 9da5b44 and classified as problematic. Affected by this vulnerability is the function value_decode in the library src/libsec/port/x509.c. The manipulation leads to null pointer dereference. Local access is required to approach this attack. The exploit has been disclosed to the public and may be used. This product takes the approach of rolling releases to provide continious delivery. Therefore, version details for affected and updated releases are not available. The identifier of the patch is deae8939583d83fd798fca97665e0e94656c3ee8. It is recommended to apply a patch to fix this issue.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 4.8 Medium | CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P | VulDB |
| 3.1 | 3.3 Low | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C | VulDB |
| 3.0 | 3.3 Low | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C | VulDB |
| 2.0 | 1.7 Low | AV:L/AC:L/Au:S/C:N/I:N/A:P/E:POC/RL:OF/RC:C | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
plan9port9fans |
|
References
- VDB-315157 | 9fans plan9port x509.c value_decode null pointer dereferencevdb-entrytechnical-description
- VDB-315157 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
- Submit #607685 | 9fans plan9port plan9port-20250329 (commit 9da5b44) NULL Pointer Dereferencethird-party-advisory
- https://github.com/9fans/plan9port/issues/711issue-tracking
- https://github.com/9fans/plan9port/issues/711#issuecomment-2819905220issue-tracking
- https://github.com/user-attachments/files/19698361/plan9port_crash_2.txtexploit
- https://git.9front.org/plan9front/plan9front/deae8939583d83fd798fca97665e0e94656c3ee8/commit.htmlpatch
Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.