CVE-2017-2668: Null Pointer Dereference
First published: Tue Mar 28 2017(Updated: )
389-ds-base before versions 1.3.5.17 and 1.3.6.10 is vulnerable to an invalid pointer dereference in the way LDAP bind requests are handled. A remote unauthenticated attacker could use this flaw to make ns-slapd crash via a specially crafted LDAP bind request, resulting in denial of service.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/389-ds-base | <1.3.5.17 | 1.3.5.17 |
| redhat/389-ds-base | <1.3.6.10 | 1.3.6.10 |
| Red Hat 389 Directory Server | >=1.3.5.0<1.3.5.17 | |
| Red Hat 389 Directory Server | >=1.3.6.0<1.3.6.10 | |
| Red Hat Enterprise Linux Desktop | =6.0 | |
| Red Hat Enterprise Linux Desktop | =7.0 | |
| Red Hat Enterprise Linux Server | =6.0 | |
| Red Hat Enterprise Linux Server | =7.0 | |
| Red Hat Enterprise Linux Workstation | =6.0 | |
| Red Hat Enterprise Linux Workstation | =7.0 |
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Reference Links
- http://www.securityfocus.com/bid/97524
- https://access.redhat.com/errata/RHSA-2017:0893
- https://access.redhat.com/errata/RHSA-2017:0920
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2668
- https://pagure.io/389-ds-base/issue/49220
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1440613
- https://bugzilla.redhat.com/show_bug.cgi?id=1436575
Frequently Asked Questions
What is the severity of CVE-2017-2668?
CVE-2017-2668 is classified as a high severity vulnerability due to its potential to cause denial of service.
How do I fix CVE-2017-2668?
To mitigate CVE-2017-2668, upgrade to 389-ds-base version 1.3.5.17 or 1.3.6.10 or later.
Who is affected by CVE-2017-2668?
CVE-2017-2668 affects users of 389-ds-base versions prior to 1.3.5.17 and 1.3.6.10.
What type of attack does CVE-2017-2668 exploit?
CVE-2017-2668 can be exploited through a specially crafted LDAP bind request.
What is the impact of CVE-2017-2668 on my system?
Exploitation of CVE-2017-2668 could result in the ns-slapd service crashing, leading to a denial of service.
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