Out-of-Bounds Access and Panic in Lustre File System: Lack of Validation in ptlrpc Module

Out-of-Bounds Access and Panic in Lustre File System: Lack of Validation in ptlrpc Module

CVE-2019-20425 · HIGH Severity

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

In the Lustre file system before 2.12.3, the ptlrpc module has an out-of-bounds access and panic due to the lack of validation for specific fields of packets sent by a client. In the function lustre_msg_string, there is no validation of a certain length value derived from lustre_msg_buflen_v2.

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