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.
References
Link | Resource |
---|---|
https://www.samba.org/samba/security/CVE-2016-2123.html | Patch Vendor Advisory |
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-2123 | Issue Tracking |
http://www.securitytracker.com/id/1037493 | Third Party Advisory VDB Entry |
http://www.securityfocus.com/bid/94970 | Third Party Advisory VDB Entry |
Configurations
Configuration 1 (hide)
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Information
Published : 2018-11-01 06:29
Updated : 2023-02-12 15:17
NVD link : CVE-2016-2123
Mitre link : CVE-2016-2123
JSON object : View
CWE
CWE-122
Heap-based Buffer Overflow
Products Affected
samba
- samba