ASA-2019-00577 – ISC Kea DHCP: An invalid hostname option can cause the kea-dhcp4 server to terminate


Allele Security Alert

ASA-2019-00577

Identifier(s)

ASA-2019-00577, CVE-2019-6473

Title

An invalid hostname option can cause the kea-dhcp4 server to terminate

Vendor(s)

Internet Systems Consortium (ISC)

Product(s)

ISC Kea DHCP

Affected version(s)

ISC Kea DHCP version 1.6.0-beta1
ISC Kea DHCP version 1.6.0-beta2
ISC Kea DHCP version 1.5.0
ISC Kea DHCP version 1.4.0

Fixed version(s)

ISC Kea DHCP version 1.6.0
ISC Kea DHCP version 1.5.0-P-1
ISC Kea DHCP version 1.4.0-P2

Proof of concept

Unknown

Description

An invalid hostname option can trigger an assertion failure in the Kea DHCPv4 server process (kea-dhcp4), causing the server process to exit.

Technical details

Unknown

Credits

Unknown

Reference(s)

CVE-2019-6473: An invalid hostname option can cause the kea-dhcp4 server to terminate
https://kb.isc.org/docs/cve-2019-6473

CVE-2019-6473
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-6473

CVE-2019-6473
https://nvd.nist.gov/vuln/detail/CVE-2019-6473

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Last modified: October 21, 2019

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