CVE-2019-20427: Lustre

Critical severity, CVSS 9.8. EPSS: 5.1% chance of exploitation in the next 30 days.

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.

Affected products

• Lustre Lustre: before 2.12.3 (fixed in 2.12.3)

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