CVE-2019-20427 Information

Description

In the Lustre file system before 2.12.3 the ptlrpc module has a buffer overflow and panic and possibly remote code execution due to the lack of validation for specific fields of packets sent by a client. Interaction between req_capsule_get_size and tgt_brw_write leads to a tgt_shortio2pages integer signedness error.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Reference

http://lustre.org/ http://wiki.lustre.org/Lustre_2.12.3_Changelog https://jira.whamcloud.com/browse/LU-12600 https://review.whamcloud.com//c/35867/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8