Description
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.
References (4)
Core 4
Core References
Release Notes, Vendor Advisory x_refsource_misc
http://wiki.lustre.org/Lustre_2.12.3_Changelog
Product, Vendor Advisory x_refsource_misc
http://lustre.org/
Exploit, Third Party Advisory x_refsource_misc
https://jira.whamcloud.com/browse/LU-12590
Third Party Advisory x_refsource_misc
https://review.whamcloud.com/#/c/36119/
Scores
CVSS v3
7.5
EPSS
0.0066
EPSS Percentile
71.2%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Details
CWE
CWE-125
Status
published
Products (1)
lustre/lustre
< 2.12.3
Published
Jan 27, 2020
Tracked Since
Feb 18, 2026