High severity8.8NVD Advisory· Published Nov 1, 2018· Updated Jun 17, 2026
CVE-2016-2123
CVE-2016-2123
Description
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.
AI Insight
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Affected products
18cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*range: >=4.0.0,<=4.0.26
- (no CPE)range: 4.0.0 to 4.5.2
- Range: 4.0.0 to 4.5.2
- osv-coords15 versionspkg:rpm/opensuse/samba&distro=openSUSE%20Tumbleweedpkg:rpm/suse/samba&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP1pkg:rpm/suse/samba&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP2pkg:rpm/suse/samba&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2012pkg:rpm/suse/samba&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2012%20SP1pkg:rpm/suse/samba&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2012%20SP2pkg:rpm/suse/samba&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1pkg:rpm/suse/samba&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2pkg:rpm/suse/samba&distro=SUSE%20Linux%20Enterprise%20Server%2012-LTSSpkg:rpm/suse/samba&distro=SUSE%20Linux%20Enterprise%20Server%20for%20Raspberry%20Pi%2012%20SP2pkg:rpm/suse/samba&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012pkg:rpm/suse/samba&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP1pkg:rpm/suse/samba&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2pkg:rpm/suse/samba&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP1pkg:rpm/suse/samba&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP2
< 4.14.6+git.182.2205d5224e3-1.1+ 14 more
- (no CPE)range: < 4.14.6+git.182.2205d5224e3-1.1
- (no CPE)range: < 4.2.4-28.3.1
- (no CPE)range: < 4.4.2-31.1
- (no CPE)range: < 4.2.4-18.30.1
- (no CPE)range: < 4.2.4-28.3.1
- (no CPE)range: < 4.4.2-31.1
- (no CPE)range: < 4.2.4-28.3.1
- (no CPE)range: < 4.4.2-31.1
- (no CPE)range: < 4.2.4-18.30.1
- (no CPE)range: < 4.4.2-31.1
- (no CPE)range: < 4.2.4-18.30.1
- (no CPE)range: < 4.2.4-28.3.1
- (no CPE)range: < 4.4.2-31.1
- (no CPE)range: < 4.2.4-28.3.1
- (no CPE)range: < 4.4.2-31.1
Patches
Vulnerability mechanics
References
4- www.samba.org/samba/security/CVE-2016-2123.htmlnvdPatchVendor Advisory
- www.securityfocus.com/bid/94970nvdThird Party AdvisoryVDB Entry
- www.securitytracker.com/id/1037493nvdThird Party AdvisoryVDB Entry
- bugzilla.redhat.com/show_bug.cginvdIssue Tracking
News mentions
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