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FreeBSD: VID-54976998-F248-11E8-81E2-005056A311D1 (CVE-2018-16851): samba -- multiple vulnerabilities

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FreeBSD: VID-54976998-F248-11E8-81E2-005056A311D1 (CVE-2018-16851): samba -- multiple vulnerabilities

Severity
4
CVSS
(AV:N/AC:L/Au:S/C:N/I:N/A:P)
Published
08/14/2018
Created
03/19/2019
Added
11/28/2018
Modified
05/07/2019

Description

Samba from version 4.0.0 and before versions 4.7.12, 4.8.7, 4.9.3 is vulnerable to a denial of service. During the processing of an LDAP search before Samba's AD DC returns the LDAP entries to the client, the entries are cached in a single memory object with a maximum size of 256MB. When this size is reached, the Samba process providing the LDAP service will follow the NULL pointer, terminating the process. There is no further vulnerability associated with this issue, merely a denial of service.

Solution(s)

  • freebsd-upgrade-package-samba46
  • freebsd-upgrade-package-samba47
  • freebsd-upgrade-package-samba48
  • freebsd-upgrade-package-samba49

References

  • USN-3827-1
  • USN-3827-2
  • DSA-4345
  • CVE-2018-16851

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