CVE-2019-20428
In the Lustre file system before 2.12.3, the ptlrpc module has an out-of-bounds read and panic due to the lack of validation for specific fields of packets sent by a client.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.82%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
In the Lustre file system before 2.12.3, the ptlrpc module has an out-of-bounds read and panic due to the lack of validation for specific fields of packets sent by a client. The ldl_request_cancel function mishandles a large lock_count parameter.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 1.82% probability · 79th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-125
- Affected
- lustre/lustre
- Source
- cve@mitre.org
EPSS 1.8% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://lustre.org/Product, Vendor Advisory
- http://wiki.lustre.org/Lustre_2.12.3_ChangelogRelease Notes, Vendor Advisory
- https://jira.whamcloud.com/browse/LU-12603Third Party Advisory
- https://review.whamcloud.com/#/c/36108/Third Party Advisory
- http://lustre.org/Product, Vendor Advisory
- http://wiki.lustre.org/Lustre_2.12.3_ChangelogRelease Notes, Vendor Advisory
- https://jira.whamcloud.com/browse/LU-12603Third Party Advisory
- https://review.whamcloud.com/#/c/36108/Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.