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This CVE record has been updated after NVD enrichment efforts were completed. Enrichment data supplied by the NVD may require amendment due to these changes.
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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vector strings. CVSS information contributed by other sources is also
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OR
*cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* versions from (including) 4.3.0 up to (excluding) 4.7.12
*cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* versions from (including) 4.8.0 up to (excluding) 4.8.7
*cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* versions from (including) 4.8.8 up to (excluding) 4.9.3
OR
*cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* versions from (including) 4.3.0 up to (excluding) 4.7.12
*cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* versions from (including) 4.8.0 up to (excluding) 4.8.7
*cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* versions from (including) 4.9.0 up to (excluding) 4.9.3
Changed
Reference Type
https://security.gentoo.org/glsa/202003-52 No Types Assigned
https://security.gentoo.org/glsa/202003-52 Third Party Advisory
CVE Modified by Red Hat, Inc.10/09/2019 7:36:20 PM
Action
Type
Old Value
New Value
Added
CVSS V3
Red Hat, Inc. AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H
Added
CWE
Red Hat, Inc. CWE-416
Initial Analysis by NIST2/04/2019 3:11:30 PM
Action
Type
Old Value
New Value
Added
CVSS V3
AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Added
CVSS V2
(AV:N/AC:L/Au:S/C:N/I:N/A:P)
Added
CWE
CWE-415
Added
CPE Configuration
OR
*cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* versions from (including) 4.3.0 up to (excluding) 4.7.12
*cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* versions from (including) 4.8.0 up to (excluding) 4.8.7
*cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* versions from (including) 4.8.8 up to (excluding) 4.9.3
Added
CPE Configuration
OR
*cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*
*cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
*cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
*cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
*cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*
Added
CPE Configuration
OR
*cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
Changed
Reference Type
http://www.securityfocus.com/bid/106023 No Types Assigned
http://www.securityfocus.com/bid/106023 Third Party Advisory, VDB Entry
Changed
Reference Type
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16841 No Types Assigned
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16841 Issue Tracking, Third Party Advisory
Changed
Reference Type
https://security.netapp.com/advisory/ntap-20181127-0001/ No Types Assigned
https://security.netapp.com/advisory/ntap-20181127-0001/ Third Party Advisory
Changed
Reference Type
https://usn.ubuntu.com/3827-1/ No Types Assigned
https://usn.ubuntu.com/3827-1/ Third Party Advisory
Changed
Reference Type
https://usn.ubuntu.com/3827-2/ No Types Assigned
https://usn.ubuntu.com/3827-2/ Third Party Advisory
Changed
Reference Type
https://www.debian.org/security/2018/dsa-4345 No Types Assigned
https://www.debian.org/security/2018/dsa-4345 Third Party Advisory
Changed
Reference Type
https://www.samba.org/samba/security/CVE-2018-16841.html No Types Assigned