Vulnerability details
CVE-2025-40129
Linux Linux
sunrpc: fix null pointer dereference on zero-length checksum
CVSS 3.1
7.5High
Official description
In the Linux kernel, the following vulnerability has been resolved: sunrpc: fix null pointer dereference on zero-length checksum In xdr_stream_decode_opaque_auth(), zero-length checksum.len causes checksum.data to be set to NULL. This triggers a NPD when accessing checksum.data in gss_krb5_verify_mic_v2(). This patch ensures that the value of checksum.len is not less than XDR_UNIT.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 7.5High | 3.1 | CVEProject cvelistV5 (CNA) (Linux) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Linux | Linux | 6.3 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 0653028e8f1c97fec30710813a001ad8a2ec34f4 ≤ v < 81cec07d303186d0d8c623ef8b5ecd3b81e94cf6 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 0653028e8f1c97fec30710813a001ad8a2ec34f4 ≤ v < affc03d44921f493deaae1d33151e3067a6f9f8f | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 0653028e8f1c97fec30710813a001ad8a2ec34f4 ≤ v < ab9a70cd2386a0d70c164b0905dd66bc9af52e77 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 0653028e8f1c97fec30710813a001ad8a2ec34f4 ≤ v < 6df164e29bd4e6505c5a2e0e5f1e1f6957a16a42 | CVEProject cvelistV5 (CNA) |
References and advisories
4
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Details
- Published
- 2025-11-12
- Last updated
- 2026-10-16
- State
- Published
- Assigner (CNA)
- Linux
Exploit prediction (EPSS)
0.56%
Probability of exploitation in 30 days
47.1%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- Yes
- Exploitation
- None
- Technical impact
- Partial
Weaknesses (CWE)
- —