CVE-2018-14624: Input Validation
First published: Mon Aug 20 2018(Updated: )
A vulnerability was discovered in 389-ds-base through versions 1.3.7.10, 1.3.8.8 and 1.4.0.16. The lock controlling the error log was not correctly used when re-opening the log file in log__error_emergency(). An attacker could send a flood of modifications to a very large DN, which would cause slapd to crash.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Red Hat 389 Directory Server | <=1.3.7.10 | |
| Red Hat 389 Directory Server | >=1.3.8.0<=1.3.8.8 | |
| Red Hat 389 Directory Server | >=1.4.0.0<=1.4.0.16 | |
| Red Hat Enterprise Linux Desktop | =7.0 | |
| Red Hat Enterprise Linux Server | =7.0 | |
| Red Hat Enterprise Linux Server | =7.6 | |
| Red Hat Enterprise Linux Server | =7.5 | |
| Red Hat Enterprise Linux Server | =7.6 | |
| Red Hat Enterprise Linux Server | =7.6 | |
| Red Hat Enterprise Linux Workstation | =7.0 | |
| Debian | =8.0 |
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Reference Links
- http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00033.html
- https://access.redhat.com/errata/RHSA-2018:2757
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14624
- https://lists.debian.org/debian-lts-announce/2018/09/msg00037.html
- https://pagure.io/389-ds-base/issue/49937
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1614820
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1621942
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1624198
- https://access.redhat.com/security/cve/CVE-2018-14624
- https://bugzilla.redhat.com/show_bug.cgi/attachment.cgi?id=1480666&action=diff
- https://bugzilla.redhat.com/show_bug.cgi/attachment.cgi?id=1480666&action=edit
- https://pagure.io/389-ds-base/c/8ff8cb850
- https://pagure.io/389-ds-base/c/c5e78249d
- https://pagure.io/389-ds-base/c/9f28620d2
- https://bugzilla.redhat.com/show_bug.cgi?id=1619450
Frequently Asked Questions
What is the severity of CVE-2018-14624?
CVE-2018-14624 has a medium severity rating due to the potential for denial of service attacks.
How do I fix CVE-2018-14624?
To fix CVE-2018-14624, upgrade to 389-ds-base versions 1.3.7.11, 1.3.8.9, or 1.4.0.17 and apply all necessary patches.
What impact does CVE-2018-14624 have on Red Hat 389 Directory Server?
CVE-2018-14624 allows an attacker to flood error logs under specific conditions, possibly leading to service disruption.
Can CVE-2018-14624 affect other operating systems?
Yes, CVE-2018-14624 can affect various Linux distributions that utilize vulnerable versions of the 389 Directory Server.
Is there a workaround for CVE-2018-14624?
There are no recommended workarounds for CVE-2018-14624; patching to the secure version is the best approach.
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