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dhcp: double-deletion of the released addresses in the dhcpv6 code leading to crash and possible DoS

🗓️ 05 Nov 2019 21:00:32Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 8 Views

Dhcpd DHCPv6 may crash or DoS due to double deletion from a BIND library bug.

Related
Packages
Refs
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux8aarch64dhcp-client12:4.3.6-34.el8dhcp-client-12:4.3.6-34.el8.aarch64.rpm
Red Hat Enterprise Linux8ppc64ledhcp-client12:4.3.6-34.el8dhcp-client-12:4.3.6-34.el8.ppc64le.rpm
Red Hat Enterprise Linux8s390xdhcp-client12:4.3.6-34.el8dhcp-client-12:4.3.6-34.el8.s390x.rpm
Red Hat Enterprise Linux8x86_64dhcp-client12:4.3.6-34.el8dhcp-client-12:4.3.6-34.el8.x86_64.rpm
Red Hat Enterprise Linux8aarch64dhcp-client-debuginfo12:4.3.6-34.el8dhcp-client-debuginfo-12:4.3.6-34.el8.aarch64.rpm
Red Hat Enterprise Linux8i686dhcp-client-debuginfo12:4.3.6-34.el8dhcp-client-debuginfo-12:4.3.6-34.el8.i686.rpm
Red Hat Enterprise Linux8ppc64ledhcp-client-debuginfo12:4.3.6-34.el8dhcp-client-debuginfo-12:4.3.6-34.el8.ppc64le.rpm
Red Hat Enterprise Linux8s390xdhcp-client-debuginfo12:4.3.6-34.el8dhcp-client-debuginfo-12:4.3.6-34.el8.s390x.rpm
Red Hat Enterprise Linux8x86_64dhcp-client-debuginfo12:4.3.6-34.el8dhcp-client-debuginfo-12:4.3.6-34.el8.x86_64.rpm
Red Hat Enterprise Linux8anydhcp-common12:4.3.6-34.el8dhcp-common-12:4.3.6-34.el8.noarch.rpm
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21 Nov 2025 18:10Current
5.7Medium risk
Vulners AI Score5.7
CVSS 25
CVSS 3.16.5 - 7.5
EPSS0.08813
8