Zero-friction vulnerability management platform

Mageni eases for you the vulnerability scanning, assessment, and management process. It is free and open-source.

Install Now

Available for macOS, Windows, and Linux

App screenshot

Samba DoS Vulnerability (CVE-2019-14847)

Information

Severity

Severity

Medium

Family

Family

Denial of Service

CVSSv2 Base

CVSSv2 Base

5.0

CVSSv2 Vector

CVSSv2 Vector

AV:N/AC:L/Au:N/C:P/I:N/A:N

Solution Type

Solution Type

Vendor Patch

Created

Created

3 years ago

Modified

Modified

3 years ago

Summary

Samba is prone to a denial of service vulnerability.

Insight

Insight

Since Samba 4.0.0 Samba has implemented, in the AD DC, the 'dirsync' LDAP control specified in MS-ADTS '3.1.1.3.4.1.3 LDAP_SERVER_DIRSYNC_OID'. However, when combined with the ranged results feature specified in MS-ADTS '3.1.1.3.1.3.3 Range Retrieval of Attribute Values' a NULL pointer is can be de-referenced. This is a Denial of Service only, no further escalation of privilege is associated with this issue.

Affected Software

Affected Software

Samba 4.0.0 until Samba 4.10.9. Samba 4.11 is not affected as the issue was fixed as a result of Coverity static analysis, before the potential for denial of service became apparent.

Detection Method

Detection Method

Checks if a vulnerable version is present on the target host.

Solution

Solution

Update to version 4.9.15, 4.10.10 or later.

Common Vulnerabilities and Exposures (CVE)