PT-2011-1026 · Isc+1 · Dhcp+5
Vincent Danen
·
Published
2011-08-15
·
Updated
2024-06-15
·
CVE-2011-2748
CVSS v2.0
7.8
High
| Vector | AV:N/AC:L/Au:N/C:N/I:N/A:C |
Name of the Vulnerable Software and Affected Versions
dhcp versions 3.0.5 through 4.2.2
dhcp versions prior to 4.2.4 p2
dhcp-3.0.5
dhcp-3.x
dhcp-4.x
dhclient-3.0.5
dhcp-devel-3.0.5
libdhcp4client-3.0.5
libdhcp4client-devel-3.0.5
Description
The issue is related to multiple vulnerabilities in the dhcp package, which can lead to a denial of service (daemon exit) via a crafted DHCP packet. The vulnerabilities can be exploited remotely, potentially disrupting the availability of protected information.
Recommendations
For dhcp versions 3.0.5 through 4.2.2, update to version 4.2.2 or later.
For dhcp versions prior to 4.2.4 p2, update to version 4.2.4 p2 or later.
For dhcp-3.0.5, dhcp-3.x, dhcp-4.x, dhclient-3.0.5, dhcp-devel-3.0.5, libdhcp4client-3.0.5, and libdhcp4client-devel-3.0.5, update to a version that is not affected by the vulnerabilities.
As a temporary workaround, consider restricting access to the vulnerable dhcp service until a patch is available.
Fix
DoS
RCE
Found an issue in the description? Have something to add? Feel free to write us 👾
Weakness Enumeration
Related Identifiers
Affected Products
Red Hat
Dhclient
Dhcp
Dhcp-Devel
Libdhcp4Client
Libdhcp4Client-Devel