Out-of-bounds Read in Lustre
CVE-2019-20428
In the Lustre file system before 2.12.3, the ptlrpc module has an out-of-bounds read and panic due to the lack of validation for specific fields of packets sent by a client. The ldl_request_cancel function mishandles a large lock_count parameter.
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: 0.018 (77.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 78th percentile — 77.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.018 · newest: 0.018 · change: 0.000
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-12603 (Third Party Advisory)
- review.whamcloud.com/ (Third Party Advisory)
Frequently asked questions
- What is CVE-2019-20428?
- CVE-2019-20428 is a high-severity vulnerability in Lustre, classified under Out-of-bounds Read. CVSS score: 7.5/10. Published 2020-01-27.
- How severe is CVE-2019-20428?
- High severity. CVSS v3 base score is 7.5 out of 10.