CVE-2018-10918

Description

A null pointer dereference flaw was found in the way samba checked database outputs from the LDB database layer. An authenticated attacker could use this flaw to crash a samba server in an Active Directory Domain Controller configuration. Samba versions before 4.7.9 and 4.8.4 are vulnerable.

CVSS Metrics

• v3.0•MEDIUM•Score: 5.2CVSS:3.0/AV:A/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H
• v3.0•MEDIUM•Score: 6.5CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
• v2.0•MEDIUM•Score: 4AV:N/AC:L/Au:S/C:N/I:N/A:P

EPSS Trends

Current EPSS score: 4.74%• Percentile: 90%

Techniques & Countermeasures

• CWE-476•NULL Pointer Dereference

  The product dereferences a pointer that it expects to be valid but is NULL.

Affected Systems

• canonical•ubuntu_linux

  14.04 | 16.04 | 18.04

• samba•samba

  ≥ 4.7.0, < 4.7.9 | ≥ 4.8.0, < 4.8.4

• the samba team•samba

  4.7.9 | 4.8.4

References (6)

• https://www.samba.org/samba/security/CVE-2018-10918.html
• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10918
• https://usn.ubuntu.com/3738-1/
• https://security.netapp.com/advisory/ntap-20180814-0001/
• http://www.securityfocus.com/bid/105083
• https://security.gentoo.org/glsa/202003-52