CVE-2018-16851

描述

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.

如何修補 CVE-2018-16851

要修補 CVE-2018-16851,請將受影響套件升級到下列已修補版本。

• —升級至 4.8.7-r0 或更新版本

CVE-2018-16851 正在被利用嗎?

低 — EPSS 為 3.3%,目前沒有觀察到大規模利用活動。

受影響套件(1)

• >= 4.0.0, < 4.8.7-r0

CVSS 分數

參考連結(1)

• ADVISORYsecurity.alpinelinux.org/vuln/CVE-2018-16851