CVE-2018-16851

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.

References

https://www.samba.org/samba/security/CVE-2018-16851.html

https://www.debian.org/security/2018/dsa-4345

https://usn.ubuntu.com/3827-2/

https://usn.ubuntu.com/3827-1/

https://security.netapp.com/advisory/ntap-20181127-0001/

https://security.gentoo.org/glsa/202003-52

https://lists.debian.org/debian-lts-announce/2018/12/msg00005.html

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16851

http://www.securityfocus.com/bid/106027

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3