CVE-2016-2123
CVSS V2 Medium 6.5
CVSS V3 High 8.8
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.
Overview
- CVE ID
- CVE-2016-2123
- Assigner
- secalert@redhat.com
- Vulnerability Status
- Modified
- Published Version
- 2018-11-01T13:29:00
- Last Modified Date
- 2023-02-12T23:17:22
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* | 1 | OR | 4.0.0 | 4.0.26 |
| cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* | 1 | OR | 4.1.0 | 4.1.23 |
| cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* | 1 | OR | 4.2.0 | 4.2.14 |
| cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* | 1 | OR | 4.3.0 | 4.3.13 |
| cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* | 1 | OR | 4.4.0 | 4.4.8 |
| cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* | 1 | OR | 4.5.0 | 4.5.3 |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:S/C:P/I:P/A:P
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- SINGLE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- PARTIAL
- Availability Impact
- PARTIAL
- Base Score
- 6.5
- Severity
- MEDIUM
- Exploitability Score
- 8
- Impact Score
- 6.4
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 8.8
- Base Severity
- HIGH
- Exploitability Score
- 2.8
- Impact Score
- 5.9
References
| Reference URL | Reference Tags |
|---|---|
| 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 |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2016-2123 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-2123 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 17:14:14 | Added to TrackCVE | |||
| 2022-12-03 14:01:44 | 2018-11-01T13:29Z | 2018-11-01T13:29:00 | CVE Published Date | updated |
| 2022-12-03 14:01:44 | 2022-08-29T20:11:19 | CVE Modified Date | updated | |
| 2022-12-03 14:01:44 | Analyzed | Vulnerability Status | updated | |
| 2023-02-13 01:08:38 | 2023-02-12T23:17:22 | CVE Modified Date | updated | |
| 2023-02-13 01:08:38 | Analyzed | Modified | Vulnerability Status | updated |
| 2023-02-13 01:08:40 | Weakness Enumeration | update |