Out-of-bounds Access and Lack of Validation in Lustre File System

Out-of-bounds Access and Lack of Validation in Lustre File System

CVE-2019-20431 · 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 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.

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