Buffer overflow in Lustre
CVE-2019-20426
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 ldlm_cancel_hpreq_check, there is no lock_count bounds check.
Vulnerability class: Buffer Overflow
EPSS: 0.019 (77.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Lustre
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (x_refsource_MISC, Release Notes, Vendor Advisory)
- cve@mitre.org (Product, x_refsource_MISC, Vendor Advisory)
- cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2019-20426?
- CVE-2019-20426 is a high-severity vulnerability in Lustre, classified under Out-of-bounds Write. CVSS score: 7.5/10. Published 2020-01-27.
- How severe is CVE-2019-20426?
- High severity. CVSS v3 base score is 7.5 out of 10.