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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

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.


Metrics

 
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CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://www.securityfocus.com/bid/106023 Third Party Advisory  VDB Entry 
http://www.securityfocus.com/bid/106023 Third Party Advisory  VDB Entry 
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16841 Issue Tracking  Third Party Advisory 
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16841 Issue Tracking  Third Party Advisory 
https://security.gentoo.org/glsa/202003-52 Third Party Advisory 
https://security.gentoo.org/glsa/202003-52 Third Party Advisory 
https://security.netapp.com/advisory/ntap-20181127-0001/ Third Party Advisory 
https://security.netapp.com/advisory/ntap-20181127-0001/ Third Party Advisory 
https://usn.ubuntu.com/3827-1/ Third Party Advisory 
https://usn.ubuntu.com/3827-1/ Third Party Advisory 
https://usn.ubuntu.com/3827-2/ Third Party Advisory 
https://usn.ubuntu.com/3827-2/ Third Party Advisory 
https://www.debian.org/security/2018/dsa-4345 Third Party Advisory 
https://www.debian.org/security/2018/dsa-4345 Third Party Advisory 
https://www.samba.org/samba/security/CVE-2018-16841.html Patch  Vendor Advisory 
https://www.samba.org/samba/security/CVE-2018-16841.html Patch  Vendor Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-415 Double Free cwe source acceptance level NIST  
CWE-416 Use After Free Red Hat, Inc.  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

7 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2018-16841
NVD Published Date:
11/28/2018
NVD Last Modified:
11/20/2024
Source:
Red Hat, Inc.