Vulnerability Details : CVE-2019-20432
In the Lustre file system before 2.12.3, the mdt module has an out-of-bounds access and panic due to the lack of validation for specific fields of packets sent by a client. mdt_file_secctx_unpack does not validate the value of name_size derived from req_capsule_get_size.
Vulnerability category: Memory Corruption
Products affected by CVE-2019-20432
- cpe:2.3:a:lustre:lustre:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2019-20432
0.36%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 69 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2019-20432
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
7.8
|
HIGH | AV:N/AC:L/Au:N/C:N/I:N/A:C |
10.0
|
6.9
|
NIST | |
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2019-20432
-
The product writes data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2019-20432
-
https://jira.whamcloud.com/browse/LU-12604
[LU-12604] Lustre mdt_file_secctx_unpack() bug - Whamcloud Community JIRAExploit;Issue Tracking;Third Party Advisory
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http://wiki.lustre.org/Lustre_2.12.3_Changelog
Lustre 2.12.3 Changelog - Lustre WikiRelease Notes;Vendor Advisory
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http://lustre.org/
LustreProduct;Vendor Advisory
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https://review.whamcloud.com/#/c/35868/
review.whamcloud Code ReviewThird Party Advisory
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