PT-2020-10439 · Opensfs · Lustre

Published 2020-01-27 · Updated 2026-05-26 · CVE-2019-20426

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 there is an out-of-bounds access and panic due to the lack of validation for specific fields of packets sent by a client. Specifically, in the function ldlm cancel hpreq check, there is no lock count bounds check.

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 implementing additional validation for packets sent by clients to prevent out-of-bounds access.

Exploit

Fix

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2019-20426

Affected Products

Lustre

References · 12

• 🔥 https://jira.whamcloud.com/browse/LU-12614 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2019-20426 · Security Note
• http://wiki.lustre.org/Lustre_2.12.3_Changelog · Vendor Advisory
• http://lustre.org · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2019-20426 · Security Note
• https://ubuntu.com/security/CVE-2019-20426 · Vendor Advisory
• https://osv.dev/vulnerability/ROOT-OS-UBUNTU-2204-CVE-2019-20426 · Vendor Advisory
• https://osv.dev/vulnerability/ROOT-OS-UBUNTU-2404-CVE-2019-20426 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2019-20426 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2019-20426 · Vendor Advisory
• https://review.whamcloud.com/#/c/36107 · Note
• https://t.me/cvenotify/432 · Telegram Post