Cisco Bug: CSCvu08013 - DTLS v1.2 and AES-GCM cipher when used drops a particular size packet frequently.
Oct 05, 2020
- Cisco ASA 5500-X Series Firewalls
Known Affected Releases
Symptom: DTLS v1.2 traffic, destined to the ASA, using AES-GCM of a certain length isn't processed properly and dropped on the ASA. Pre-encrypted packets of size 941 bytes after AnyConnect encapsulation in DTLSv1.2 of size 1007 bytes are dropped. Conditions: ASA version 9.12(3)9 Anyconnect Version 4.6+ The VPN tunnel negotiates DTLSv1.2 using AES-GCM.
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Bug Details Include
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- Known Fixed Releases
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