CVE-2019-20427

moderate-risk
Published 2020-01-27

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.

Do I need to act?

~
3.7% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.8/10 Critical
NETWORK / LOW complexity

Affected Products (1)

Lustre

Affected Vendors

Lustre

References (8)

Product http://lustre.org/
Release Notes http://wiki.lustre.org/Lustre_2.12.3_Changelog
Exploit https://jira.whamcloud.com/browse/LU-12600
Exploit https://review.whamcloud.com/#/c/35867/
Product http://lustre.org/
Release Notes http://wiki.lustre.org/Lustre_2.12.3_Changelog
Exploit https://jira.whamcloud.com/browse/LU-12600
Exploit https://review.whamcloud.com/#/c/35867/
44
/ 100
moderate-risk
Severity 32/34 · Critical
Exploitability 7/34 · Low
Exposure 5/34 · Minimal