CVE-2019-20431: Lustre

High severity, CVSS 7.5. EPSS: 1.9% chance of exploitation in the next 30 days.

In the Lustre file system before 2.12.3, the ptlrpc module has an osd_map_remote_to_local out-of-bounds access and panic due to the lack of validation for specific fields of packets sent by a client. osd_bufs_get in the osd_ldiskfs module does not validate a certain length value.

Affected products

• Lustre Lustre: before 2.12.3 (fixed in 2.12.3)

Published 2020-01-27. Last modified 2026-06-17.