CVE-2018-16841
- State
- Published
- Severity
- 5.7 Medium
- Published
- Nov 28, 2018
- Updated
- Aug 5, 2024
- Reserved
- Sep 11, 2018
Description
Samba from version 4.3.0 and before versions 4.7.12, 4.8.7 and 4.9.3 are vulnerable to a denial of service. When configured to accept smart-card authentication, Samba's KDC will call talloc_free() twice on the same memory if the principal in a validly signed certificate does not match the principal in the AS-REQ. This is only possible after authentication with a trusted certificate. talloc is robust against further corruption from a double-free with talloc_free() and directly calls abort(), terminating the KDC process.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.0 | 5.7 Medium | CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H | redhat |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
samba[UNKNOWN] |
|
References
- 106023vdb-entry
- USN-3827-2vendor-advisory
- USN-3827-1vendor-advisory
- https://security.netapp.com/advisory/ntap-20181127-0001/
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16841
- DSA-4345vendor-advisory
- https://www.samba.org/samba/security/CVE-2018-16841.html
- GLSA-202003-52vendor-advisory
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