SB2011112202 - Heap-based buffer overflow in openldap (Alpine package)
Published: November 22, 2011
Security Bulletin ID
SB2011112202
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Heap-based buffer overflow (CVE-ID: CVE-2011-4079)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in Off-by-one error in the UTF8StringNormalize function in OpenLDAP 2.4.26 and earlier. A remote attacker can use a zero-length string that triggers a heap-based buffer overflow to trigger heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Remediation
Install update from vendor's website.