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Cisco Bug: CSCuj28861 - Cisco ASA Malformed DNS Reply Denial of Service Vulnerability

Last Modified

Apr 16, 2020

Products (1)

  • Cisco ASA 5500-X Series Firewalls

Known Affected Releases

8.4(7) 9.0(2)

Description (partial)

Symptoms:
ASA crash in thread name: dns_process

Conditions:
This may happen when a the network object configuration includes both a IPv4 & IPv6 fqdn defined and in use and the ASA triggers a DNS request
for these object
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  • Status
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