CVE-2018-1089 Denial of service in 389-ds-base
A remote unauthenticated attacker can crash the 389-ds-base LDAP server by sending a specially crafted request with long search filters, causing denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2018-1089?
CVE-2018-1089 is a high-severity denial of service vulnerability in Debian Debian Linux, published on 9 May 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
389-ds-base before versions 1.4.0.9, 1.3.8.1, 1.3.6.15 did not properly handle long search filters with characters needing escapes, possibly leading to buffer overflows. A remote, unauthenticated attacker could potentially use this flaw to make ns-slapd crash via a specially crafted LDAP request, thus resulting in denial of service.
Which versions are affected by CVE-2018-1089?
It affects 5 products.
Linux distribution packages (36)
389-ds-base Red Hat:enterprise_linux:6::client | All versions | 0:1.2.11.15-95.el6_9 |
389-ds-base-debuginfo Red Hat:enterprise_linux:6::client | All versions | 0:1.2.11.15-95.el6_9 |
389-ds-base-devel Red Hat:enterprise_linux:6::client | All versions | 0:1.2.11.15-95.el6_9 |
389-ds-base-libs Red Hat:enterprise_linux:6::client | All versions | 0:1.2.11.15-95.el6_9 |
389-ds-base Red Hat:enterprise_linux:6::computenode | All versions | 0:1.2.11.15-95.el6_9 |
389-ds-base-debuginfo Red Hat:enterprise_linux:6::computenode | All versions | 0:1.2.11.15-95.el6_9 |
389-ds-base-devel Red Hat:enterprise_linux:6::computenode | All versions | 0:1.2.11.15-95.el6_9 |
389-ds-base-libs Red Hat:enterprise_linux:6::computenode | All versions | 0:1.2.11.15-95.el6_9 |
389-ds-base Red Hat:enterprise_linux:6::server | All versions | 0:1.2.11.15-95.el6_9 |
389-ds-base-debuginfo Red Hat:enterprise_linux:6::server | All versions | 0:1.2.11.15-95.el6_9 |
389-ds-base-devel Red Hat:enterprise_linux:6::server | All versions | 0:1.2.11.15-95.el6_9 |
389-ds-base-libs Red Hat:enterprise_linux:6::server | All versions | 0:1.2.11.15-95.el6_9 |
389-ds-base Red Hat:enterprise_linux:6::workstation | All versions | 0:1.2.11.15-95.el6_9 |
389-ds-base-debuginfo Red Hat:enterprise_linux:6::workstation | All versions | 0:1.2.11.15-95.el6_9 |
389-ds-base-devel Red Hat:enterprise_linux:6::workstation | All versions | 0:1.2.11.15-95.el6_9 |
389-ds-base-libs Red Hat:enterprise_linux:6::workstation | All versions | 0:1.2.11.15-95.el6_9 |
389-ds-base Red Hat:enterprise_linux:7::client | All versions | 0:1.3.7.5-21.el7_5 |
389-ds-base-debuginfo Red Hat:enterprise_linux:7::client | All versions | 0:1.3.7.5-21.el7_5 |
389-ds-base-devel Red Hat:enterprise_linux:7::client | All versions | 0:1.3.7.5-21.el7_5 |
389-ds-base-libs Red Hat:enterprise_linux:7::client | All versions | 0:1.3.7.5-21.el7_5 |
389-ds-base-snmp Red Hat:enterprise_linux:7::client | All versions | 0:1.3.7.5-21.el7_5 |
389-ds-base Red Hat:enterprise_linux:7::computenode | All versions | 0:1.3.7.5-21.el7_5 |
389-ds-base-debuginfo Red Hat:enterprise_linux:7::computenode | All versions | 0:1.3.7.5-21.el7_5 |
389-ds-base-devel Red Hat:enterprise_linux:7::computenode | All versions | 0:1.3.7.5-21.el7_5 |
389-ds-base-libs Red Hat:enterprise_linux:7::computenode | All versions | 0:1.3.7.5-21.el7_5 |
389-ds-base-snmp Red Hat:enterprise_linux:7::computenode | All versions | 0:1.3.7.5-21.el7_5 |
389-ds-base Red Hat:enterprise_linux:7::server | All versions | 0:1.3.7.5-21.el7_5 |
389-ds-base-debuginfo Red Hat:enterprise_linux:7::server | All versions | 0:1.3.7.5-21.el7_5 |
389-ds-base-devel Red Hat:enterprise_linux:7::server | All versions | 0:1.3.7.5-21.el7_5 |
389-ds-base-libs Red Hat:enterprise_linux:7::server | All versions | 0:1.3.7.5-21.el7_5 |
389-ds-base-snmp Red Hat:enterprise_linux:7::server | All versions | 0:1.3.7.5-21.el7_5 |
389-ds-base Red Hat:enterprise_linux:7::workstation | All versions | 0:1.3.7.5-21.el7_5 |
389-ds-base-debuginfo Red Hat:enterprise_linux:7::workstation | All versions | 0:1.3.7.5-21.el7_5 |
389-ds-base-devel Red Hat:enterprise_linux:7::workstation | All versions | 0:1.3.7.5-21.el7_5 |
389-ds-base-libs Red Hat:enterprise_linux:7::workstation | All versions | 0:1.3.7.5-21.el7_5 |
389-ds-base-snmp Red Hat:enterprise_linux:7::workstation | All versions | 0:1.3.7.5-21.el7_5 |
Products include Debian Debian Linux, Fedoraproject 389 Directory Server, Redhat Enterprise Linux Desktop, Redhat Enterprise Linux Server, Redhat Enterprise Linux Workstation.
How do I fix CVE-2018-1089?
Upgrade to a fixed version.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2018-1089 being exploited?
There is no known exploitation of CVE-2018-1089 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as DEBIAN-CVE-2018-1089, GHSA-4xv3-w7vq-3g6v, MGASA-2018-0245, RHSA-2018:1364, RHSA-2018:1380, UBUNTU-CVE-2018-1089.