ALPINE-CVE-2016-2123

ALPINE-CVE-2016-2123 PUBLISHED CVSS 8.800000190734863 HIGH

A flaw was found in samba versions 4.0.0 to 4.5.2. The Samba routine ndr_pull_dnsp_name contains an integer wrap problem, leading to an attacker-controlled memory overwrite. ndr_pull_dnsp_name parses data from the Samba Active Directory ldb database. Any user who can write to the dnsRecord attribute over LDAP can trigger this memory corruption. By default, all authenticated LDAP users can write to the dnsRecord attribute on new DNS objects. This makes the defect a remote privilege escalation.

Risk Scores

CVSS v3.1

8.800000190734863

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Products

Vendor	Product	Versions
Alpine:v3.2	samba	0, 3.2.11-r0, 3.2.11-r1
Alpine:v3.3	samba	0, 3.2.10-r0, 3.2.11-r0
Alpine:v3.4	samba	0, 3.2.10-r0, 3.2.11-r0

Timeline

Nov 1, 2018 CVE Published
Nov 19, 2025 CVE Updated
Apr 30, 2026 Distribution Patch

References

https://security.alpinelinux.org/vuln/CVE-2016-2123 advisory

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