CVE-2017-2668 : Security Advisory and Response
Learn about CVE-2017-2668 affecting 389-ds-base versions 1.3.5.17 and 1.3.6.10. Discover the impact, technical details, and mitigation steps for this vulnerability.
CVE-2017-2668 was published on April 10, 2017, and affects 389-ds-base versions 1.3.5.17 and 1.3.6.10. The vulnerability allows for a denial of service attack through specially crafted LDAP bind requests.
Understanding CVE-2017-2668
This CVE involves a vulnerability in 389-ds-base that can lead to a denial of service attack.
What is CVE-2017-2668?
The vulnerability in 389-ds-base versions prior to 1.3.5.17 and 1.3.6.10 allows a remote attacker to crash ns-slapd by sending a specifically crafted LDAP bind request without authentication, resulting in a denial of service.
The Impact of CVE-2017-2668
The impact of this CVE is rated as MEDIUM severity with a CVSS base score of 6.5. The availability impact is HIGH, potentially leading to service disruption.
Technical Details of CVE-2017-2668
This section provides technical details of the vulnerability.
Vulnerability Description
An invalid pointer dereference in the handling of LDAP bind requests in 389-ds-base versions before 1.3.5.17 and 1.3.6.10 can be exploited by an unauthenticated remote attacker to crash ns-slapd, causing a denial of service.
Affected Systems and Versions
- Product: 389-ds-base
- Versions: 1.3.5.17, 1.3.6.10
Exploitation Mechanism
The vulnerability can be exploited by sending a specially crafted LDAP bind request to the target system, triggering the crash of ns-slapd and resulting in a denial of service.
Mitigation and Prevention
Protecting systems from CVE-2017-2668 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Apply patches provided by the vendor to mitigate the vulnerability.
- Monitor network traffic for any suspicious LDAP bind requests.
Long-Term Security Practices
- Implement network segmentation to limit the impact of potential attacks.
- Keep systems up to date with the latest security patches and updates.
Patching and Updates
Regularly check for security advisories and updates from the vendor to ensure that systems are protected against known vulnerabilities.