CVE-2011-0413 Denial of service in n/a

High 7.8 Published 31 Jan 2011 Updated 6 Aug 2024

Remote attackers can crash the ISC DHCPv6 server by sending specific IPv6 messages, causing a 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-2011-0413?

CVE-2011-0413 is a high-severity denial of service vulnerability in n/a, published on 31 Jan 2011. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The DHCPv6 server in ISC DHCP 4.0.x and 4.1.x before 4.1.2-P1, 4.0-ESV and 4.1-ESV before 4.1-ESV-R1, and 4.2.x before 4.2.1b1 allows remote attackers to cause a denial of service (assertion failure and daemon crash) by sending a message over IPv6 for a declined and abandoned address.

Weakness: CWE-20

Which versions are affected by CVE-2011-0413?

It affects 1 product.

Linux distribution packages (16)

`dhclient` Red Hat:enterprise_linux:6::client	All versions	`12:4.1.1-12.P1.el6_0.2`
`dhcp` Red Hat:enterprise_linux:6::client	All versions	`12:4.1.1-12.P1.el6_0.2`
`dhcp-debuginfo` Red Hat:enterprise_linux:6::client	All versions	`12:4.1.1-12.P1.el6_0.2`
`dhcp-devel` Red Hat:enterprise_linux:6::client	All versions	`12:4.1.1-12.P1.el6_0.2`
`dhclient` Red Hat:enterprise_linux:6::computenode	All versions	`12:4.1.1-12.P1.el6_0.2`
`dhcp` Red Hat:enterprise_linux:6::computenode	All versions	`12:4.1.1-12.P1.el6_0.2`
`dhcp-debuginfo` Red Hat:enterprise_linux:6::computenode	All versions	`12:4.1.1-12.P1.el6_0.2`
`dhcp-devel` Red Hat:enterprise_linux:6::computenode	All versions	`12:4.1.1-12.P1.el6_0.2`
`dhclient` Red Hat:enterprise_linux:6::server	All versions	`12:4.1.1-12.P1.el6_0.2`
`dhcp` Red Hat:enterprise_linux:6::server	All versions	`12:4.1.1-12.P1.el6_0.2`
`dhcp-debuginfo` Red Hat:enterprise_linux:6::server	All versions	`12:4.1.1-12.P1.el6_0.2`
`dhcp-devel` Red Hat:enterprise_linux:6::server	All versions	`12:4.1.1-12.P1.el6_0.2`
`dhclient` Red Hat:enterprise_linux:6::workstation	All versions	`12:4.1.1-12.P1.el6_0.2`
`dhcp` Red Hat:enterprise_linux:6::workstation	All versions	`12:4.1.1-12.P1.el6_0.2`
`dhcp-debuginfo` Red Hat:enterprise_linux:6::workstation	All versions	`12:4.1.1-12.P1.el6_0.2`
`dhcp-devel` Red Hat:enterprise_linux:6::workstation	All versions	`12:4.1.1-12.P1.el6_0.2`

Products include Isc Dhcp.

How do I fix CVE-2011-0413?

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-2011-0413 being exploited?

There is no known exploitation of CVE-2011-0413 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2011-0413, DSA-2184-1, GHSA-4pw9-88hx-8fcw, RHSA-2011:0256.