Isc · Dhcp-Common · CVE-2012-3571
**Name of the Vulnerable Software and Affected Versions**
dhcp versions 4.1.1 through 4.2.4
dhcp versions prior to 4.1-ESV-R6
dhcp-common version 4.1.1
dhcp-devel version 4.1.1
dhclient version 4.1.1
**Description**
The issue involves multiple vulnerabilities in the dhcp package, which can lead to a disruption of protected information availability. These vulnerabilities can be exploited remotely, potentially causing a denial of service due to an infinite loop and CPU consumption via a malformed client identifier.
**Recommendations**
For dhcp versions 4.1.1 through 4.2.4, update to a version later than 4.2.4 p2 to resolve the issue.
For dhcp versions prior to 4.1-ESV-R6, update to 4.1-ESV-R6 or later to resolve the issue.
For dhcp-common, dhcp-devel, and dhclient version 4.1.1, update to a version later than 4.1.1 to resolve the issue.
As a temporary workaround, consider restricting access to the dhcp service to minimize the risk of exploitation.