CVE-2016-0741 Denial of service in n/a

High 7.5 Published 19 Apr 2016 Updated 5 Aug 2024

Remote attackers can cause a denial of service in 389 Directory Server by triggering an infinite loop via an abnormally closed connection.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: Available

What is CVE-2016-0741?

CVE-2016-0741 is a high-severity denial of service vulnerability in Redhat Enterprise Linux, published on 19 Apr 2016. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

slapd/connection.c in 389 Directory Server (formerly Fedora Directory Server) 1.3.4.x before 1.3.4.7 allows remote attackers to cause a denial of service (infinite loop and connection blocking) by leveraging an abnormally closed connection.

Weakness: CWE-399

Which versions are affected by CVE-2016-0741?

It affects 6 products.

Linux distribution packages (16)

`389-ds-base` Red Hat:enterprise_linux:7::client	All versions	`0:1.3.4.0-26.el7_2`
`389-ds-base-debuginfo` Red Hat:enterprise_linux:7::client	All versions	`0:1.3.4.0-26.el7_2`
`389-ds-base-devel` Red Hat:enterprise_linux:7::client	All versions	`0:1.3.4.0-26.el7_2`
`389-ds-base-libs` Red Hat:enterprise_linux:7::client	All versions	`0:1.3.4.0-26.el7_2`
`389-ds-base` Red Hat:enterprise_linux:7::computenode	All versions	`0:1.3.4.0-26.el7_2`
`389-ds-base-debuginfo` Red Hat:enterprise_linux:7::computenode	All versions	`0:1.3.4.0-26.el7_2`
`389-ds-base-devel` Red Hat:enterprise_linux:7::computenode	All versions	`0:1.3.4.0-26.el7_2`
`389-ds-base-libs` Red Hat:enterprise_linux:7::computenode	All versions	`0:1.3.4.0-26.el7_2`
`389-ds-base` Red Hat:enterprise_linux:7::server	All versions	`0:1.3.4.0-26.el7_2`
`389-ds-base-debuginfo` Red Hat:enterprise_linux:7::server	All versions	`0:1.3.4.0-26.el7_2`
`389-ds-base-devel` Red Hat:enterprise_linux:7::server	All versions	`0:1.3.4.0-26.el7_2`
`389-ds-base-libs` Red Hat:enterprise_linux:7::server	All versions	`0:1.3.4.0-26.el7_2`
`389-ds-base` Red Hat:enterprise_linux:7::workstation	All versions	`0:1.3.4.0-26.el7_2`
`389-ds-base-debuginfo` Red Hat:enterprise_linux:7::workstation	All versions	`0:1.3.4.0-26.el7_2`
`389-ds-base-devel` Red Hat:enterprise_linux:7::workstation	All versions	`0:1.3.4.0-26.el7_2`
`389-ds-base-libs` Red Hat:enterprise_linux:7::workstation	All versions	`0:1.3.4.0-26.el7_2`

Products include Fedoraproject 389 Directory Server, Redhat Enterprise Linux, Redhat Enterprise Linux Desktop, Redhat Enterprise Linux Hpc Node, Redhat Enterprise Linux Server, Redhat Enterprise Linux Workstation.

How do I fix CVE-2016-0741?

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-2016-0741 being exploited?

There is no known exploitation of CVE-2016-0741 in the wild and no public exploit code.

All Redhat Enterprise Linux vulnerabilities

Sources

Also known as DEBIAN-CVE-2016-0741, GHSA-hx2c-r32g-8w55, MGASA-2016-0081, RHSA-2016:0204.