ckolivas lrzip stream.c ucompthread 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
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-404.
Summary
A security vulnerability has been detected in ckolivas lrzip up to 0.651. This vulnerability affects the function ucompthread of the file stream.c. Such manipulation leads to null pointer dereference. The attack can only be performed from a local environment. The exploit has been disclosed publicly and may be used. The project was informed of the problem early through an issue report but has not responded yet.
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
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-15571
- 2026-10-03 Alias added: GHSA-x954-5gxx-h6v4
References
More ckolivas Lrzip vulnerabilities
- TI-2025-14209 ckolivas lrzip stream.c lzma_decompress_buf use after free CVSS 4.0MEDIUM 4.8
- TI-2025-08608 ckolivas lrzip strtol_l.c __GI_____strtol_l_internal null pointer dereference CVSS 4.0MEDIUM 4.8
Sources
- CVE-2025-15571 · CVE Program
- CVE-2025-15571 · NVD
- FIRST EPSS
- GHSA-x954-5gxx-h6v4 · GitHub Advisory Database · CC BY 4.0
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