Buffer overflow in Lustre
CVE-2019-20425
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 lustre_msg_string, there is no validation of a certain length value derived from lustre_msg_buflen_v2.
Vulnerability class: Buffer Overflow
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.022 (81.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 82nd percentile — 81.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.019 · newest: 0.022 · change: +0.003
Affected products
Weakness classification (CWE)
References
- wiki.lustre.org/Lustre_2.12.3_Changelog (Release Notes, Vendor Advisory)
- lustre.org/ (Product, Vendor Advisory)
- jira.whamcloud.com/browse/LU-12613 (Exploit, Third Party Advisory)
- review.whamcloud.com/ (Third Party Advisory)
Frequently asked questions
- What is CVE-2019-20425?
- CVE-2019-20425 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-2019-20425?
- High severity. CVSS v3 base score is 7.5 out of 10.