Out-of-Bounds Affecting samba package, versions <2:4.5.2+dfsg-2


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
94.14% (100th percentile)

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  • Snyk IDSNYK-DEBIAN10-SAMBA-357499
  • published27 Jun 2018
  • disclosed1 Nov 2018

Introduced: 27 Jun 2018

CVE-2016-2123  (opens in a new tab)
CWE-119  (opens in a new tab)

How to fix?

Upgrade Debian:10 samba to version 2:4.5.2+dfsg-2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream samba package and not the samba package as distributed by Debian. See How to fix? for Debian:10 relevant fixed versions and status.

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.

CVSS Scores

version 3.1