CVE-2018-16841
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2018-16841
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2018-16841.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2018-16841
- Downstream
- Related
- Published
- 2018-11-28T14:29:00Z
- Modified
- 2025-10-15T04:33:31Z
- Severity
-
- 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
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 tallocfree() 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 tallocfree() and directly calls abort(), terminating the KDC process.
- References
-
- http://www.securityfocus.com/bid/106023
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16841
- https://security.gentoo.org/glsa/202003-52
- https://security.netapp.com/advisory/ntap-20181127-0001/
- https://usn.ubuntu.com/3827-1/
- https://usn.ubuntu.com/3827-2/
- https://www.debian.org/security/2018/dsa-4345
- https://www.samba.org/samba/security/CVE-2018-16841.html