PT-2020-10441 · Opensuse · Lustre

Published 2020-01-27 · Updated 2020-01-29 · CVE-2019-20428

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions Lustre file system versions prior to 2.12.3

Description The issue is related to the ptlrpc module in the Lustre file system, where a lack of validation for specific fields of packets sent by a client can cause an out-of-bounds read and panic. Specifically, the ldl request cancel function mishandles a large lock count parameter.

Recommendations For versions prior to 2.12.3, update to version 2.12.3 or later to resolve the issue. As a temporary workaround, consider restricting access to the ptlrpc module to minimize the risk of exploitation.

Fix

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

CVE-2019-20428

Affected Products

Lustre

References · 7

• http://wiki.lustre.org/Lustre_2.12.3_Changelog · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2019-20428 · Vendor Advisory
• http://lustre.org · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2019-20428 · Security Note
• https://t.me/cvenotify/434 · Telegram Post
• https://review.whamcloud.com/#/c/36108 · Note
• https://jira.whamcloud.com/browse/LU-12603 · Note