CVE-2019-20429

Public Exploit

Description

In the Lustre file system before 2.12.3, the ptlrpc module has an out-of-bounds read and panic (via a modified lm_bufcount field) due to the lack of validation for specific fields of packets sent by a client. This is caused by interaction between sptlrpc_svc_unwrap_request and lustre_msg_hdr_size_v2.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.66%
Vendor Advisory lustre.org Vendor Advisory lustre.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://wiki.lustre.org/Lustre_2.12.3_Changelog release notes vendor advisory
http://lustre.org/ product vendor advisory
https://jira.whamcloud.com/browse/LU-12590 third party advisory exploit
https://review.whamcloud.com/#/c/36119/ third party advisory

Frequently Asked Questions

What is the severity of CVE-2019-20429?
CVE-2019-20429 has been scored as a high severity vulnerability.
How to fix CVE-2019-20429?
To fix CVE-2019-20429, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2019-20429 being actively exploited in the wild?
It is possible that CVE-2019-20429 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.