SB2016123025 - Integer underflow in samba (Alpine package)
Published: December 30, 2016
Security Bulletin ID
SB2016123025
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Adjecent network
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Integer underflow (CVE-ID: CVE-2016-2123)
CWE-ID: CWE-191 - Integer underflow
CVSSv4: CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:U/U:Green
The vulnerability allows a remote authenticated user to compromise vulnerable server.
The vulnerability exists due to integer underflow within ndr_pull_dnsp_name routine when processing dnsRecord attribute in LDAP requests. A remote authenticated attacker can send a specially crafted LDAP request to the affected server, trigger heap-based buffer overflow and execute arbitrary code on the target sever.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable server.
Remediation
Install update from vendor's website.