CVE-2019-20429 json
In the Lustre file system before 2.12.3, the ptlrpc module has an out-of-bounds read and panic (via a modified lm_bufcount field) due to th…
published 2020-01-27 6 y ago modified 2026-06-17 4 mo ago also EUVD-2019-10977
- cvss
- 7.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 2.2%
- EPSS 2.2% chance of exploitation in 30 days, percentile 82%
- public exploits
- 0
- none known
Summary
In the Lustre file system before 2.12.3, the ptlrpc module has an out-of-bounds read and panic (via a modified lm_bufcount field) due to the lack of validation for specific fields of packets sent by a client. This is caused by interaction between sptlrpc_svc_unwrap_request and lustre_msg_hdr_size_v2.
Patch / fix
- lustre lustre 2.12.3
Exploit prediction
2.18% chance of exploitation in the next 30 days, higher than 82% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- jira.whamcloud.com https://jira.whamcloud.com/browse/LU-12590 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVD | 2.0 | 7.8 | AV:N/AC:L/Au:N/C:N/I:N/A:C |
Classification
- Weakness
-
- CWE-125 Out-of-bounds Read
References
-
jira.whamcloud.com
/browse/LU-12590
exploit, third-party-advisory
-
wiki.lustre.org
/Lustre_2.12.3_Changelog
release-notes, vendor-advisory
-
lustre.org
/
product, vendor-advisory
-
review.whamcloud.com
/#/c/36119/
third-party-advisory
Sources
- CVE List CVE-2019-20429
- NVD CVE-2019-20429
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.