CVE-2018-16841

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.

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

Configuration 1

cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:* cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:* cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

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Published : 2018-11-28 02:29

Updated : 2022-08-29 08:04

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NVD link : CVE-2018-16841

Mitre link : CVE-2018-16841

No products.

CWE-415