SB2011102701 - Heap-based buffer overflow in OpenLDAP

CSH
CYBERSECURITY HELP
Sign In REGISTER

Main Vulnerability Database SB2011102701

SB2011102701 - Heap-based buffer overflow in OpenLDAP

Published: October 27, 2011 Updated: August 3, 2020

Security Bulletin ID SB2011102701
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Partial DoS

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Heap-based buffer overflow (CVE-ID: CVE-2011-4079)

CWE-ID: CWE-122 - Heap-based Buffer Overflow

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear


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.

References