CVE-2018-16841
Vulnerability from cvelistv5
Published
2018-11-28 14:00
Modified
2024-08-05 10:32
Severity ?
5.7 (Medium) - CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H
Summary
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.
References
secalert@redhat.comhttp://www.securityfocus.com/bid/106023Third Party Advisory, VDB Entry
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16841Issue Tracking, Third Party Advisory
secalert@redhat.comhttps://security.gentoo.org/glsa/202003-52Third Party Advisory
secalert@redhat.comhttps://security.netapp.com/advisory/ntap-20181127-0001/Third Party Advisory
secalert@redhat.comhttps://usn.ubuntu.com/3827-1/Third Party Advisory
secalert@redhat.comhttps://usn.ubuntu.com/3827-2/Third Party Advisory
secalert@redhat.comhttps://www.debian.org/security/2018/dsa-4345Third Party Advisory
secalert@redhat.comhttps://www.samba.org/samba/security/CVE-2018-16841.htmlPatch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/106023Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16841Issue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/202003-52Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20181127-0001/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/3827-1/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/3827-2/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.debian.org/security/2018/dsa-4345Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.samba.org/samba/security/CVE-2018-16841.htmlPatch, Vendor Advisory
Impacted products
Vendor Product Version
Show details on NVD website

To clipboard 

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