CVE-2019-20432 json
In the Lustre file system before 2.12.3, the mdt module has an out-of-bounds access and panic due to the lack of validation for specific fi…
published 2020-01-27 6 y ago modified 2026-06-17 4 mo ago also EUVD-2019-10980
- cvss
- 7.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.8%
- EPSS 1.8% chance of exploitation in 30 days, percentile 78%
- public exploits
- 0
- none known
Summary
In the Lustre file system before 2.12.3, the mdt module has an out-of-bounds access and panic due to the lack of validation for specific fields of packets sent by a client. mdt_file_secctx_unpack does not validate the value of name_size derived from req_capsule_get_size.
Patch / fix
- lustre lustre 2.12.3
Exploit prediction
1.81% chance of exploitation in the next 30 days, higher than 78% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- jira.whamcloud.com https://jira.whamcloud.com/browse/LU-12604 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-787 Out-of-bounds Write
References
-
jira.whamcloud.com
/browse/LU-12604
exploit, issue-tracking, third-party-advisory
-
wiki.lustre.org
/Lustre_2.12.3_Changelog
release-notes, vendor-advisory
-
lustre.org
/
product, vendor-advisory
-
review.whamcloud.com
/#/c/35868/
third-party-advisory
Sources
- CVE List CVE-2019-20432
- NVD CVE-2019-20432
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.