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dhcp: DoS due to error in handling malformed client identifiers

🗓️ 03 Aug 2012 00:18:00Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com

Dynamic Host Configuration Protocol DoS in versions 4.1.2–4.2.4 and 4.1-ESV before R6 from malformed client identifiers causing infinite loop.

Related
Packages
Refs
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux5i386dhclient12:3.0.5-31.el5_8.1dhclient-12:3.0.5-31.el5_8.1.i386.rpm
Red Hat Enterprise Linux5ia64dhclient12:3.0.5-31.el5_8.1dhclient-12:3.0.5-31.el5_8.1.ia64.rpm
Red Hat Enterprise Linux5ppcdhclient12:3.0.5-31.el5_8.1dhclient-12:3.0.5-31.el5_8.1.ppc.rpm
Red Hat Enterprise Linux5s390xdhclient12:3.0.5-31.el5_8.1dhclient-12:3.0.5-31.el5_8.1.s390x.rpm
Red Hat Enterprise Linux5x86_64dhclient12:3.0.5-31.el5_8.1dhclient-12:3.0.5-31.el5_8.1.x86_64.rpm
Red Hat Enterprise Linux5i386dhcp12:3.0.5-31.el5_8.1dhcp-12:3.0.5-31.el5_8.1.i386.rpm
Red Hat Enterprise Linux5ia64dhcp12:3.0.5-31.el5_8.1dhcp-12:3.0.5-31.el5_8.1.ia64.rpm
Red Hat Enterprise Linux5ppcdhcp12:3.0.5-31.el5_8.1dhcp-12:3.0.5-31.el5_8.1.ppc.rpm
Red Hat Enterprise Linux5s390xdhcp12:3.0.5-31.el5_8.1dhcp-12:3.0.5-31.el5_8.1.s390x.rpm
Red Hat Enterprise Linux5x86_64dhcp12:3.0.5-31.el5_8.1dhcp-12:3.0.5-31.el5_8.1.x86_64.rpm
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21 Nov 2025 17:41Current
5.9Medium risk
Vulners AI Score5.9
CVSS 26.1
EPSS0.17426
0