National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2018-16841 Detail

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.

Source:  MITRE
Description Last Modified:  11/28/2018

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Hyperlink Resource
http://www.securityfocus.com/bid/106023
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16841
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

Technical Details

Vulnerability Type (View All)

Change History

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Quick Info

CVE Dictionary Entry:
CVE-2018-16841
NVD Published Date:
11/28/2018
NVD Last Modified:
11/29/2018