CVE-2020-10730

Description

A NULL pointer dereference, or possible use-after-free flaw was found in Samba AD LDAP server in versions before 4.10.17, before 4.11.11 and before 4.12.4. Although some versions of Samba shipped with Red Hat Enterprise Linux do not support Samba in AD mode, the affected code is shipped with the libldb package. This flaw allows an authenticated user to possibly trigger a use-after-free or NULL pointer dereference. The highest threat from this vulnerability is to system availability.

How to fix CVE-2020-10730

To remediate CVE-2020-10730, upgrade the affected package to a fixed version below.

• —upgrade to 4.10.17-r0 or later
• —upgrade to 2:2.1.4-1 or later
• —upgrade to 2:1.5.1+really1.4.6-3+deb10u1 or later
• —upgrade to 2:4.12.5+dfsg-1 or later

Is CVE-2020-10730 being exploited?

Low — EPSS is 3.8%, meaning exploitation activity has not been observed at scale.

Affected packages (4)

• from 0, < 4.10.17-r0
• from 0, < 2:2.1.4-1
• from 0, < 2:1.5.1+really1.4.6-3+deb10u1
• from 0, < 2:4.12.5+dfsg-1

CVSS scores

References (2)

• ADVISORYsecurity.alpinelinux.org/vuln/CVE-2020-10730
• ADVISORYsecurity-tracker.debian.org/tracker/CVE-2020-10730