CVE-2019-20432

HIGH

Lustre < 2.12.3 - Out-of-bounds Write in mdt_file_secctx_unpack

Title source: llm

Description

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.

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, Issue Tracking, Third Party Advisory x_refsource_misc

https://jira.whamcloud.com/browse/LU-12604

Third Party Advisory x_refsource_misc

https://review.whamcloud.com/#/c/35868/

Scores

CVSS v3 7.5

EPSS 0.0181

EPSS Percentile 76.0%

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-787

Status published

Products (1)

lustre/lustre < 2.12.3

Published Jan 27, 2020

Tracked Since Feb 18, 2026