Description
If one side of the TLS connection sends multiple key update messages post-handshake in a single record, the connection can deadlock, causing uncontrolled consumption of resources. This can lead to a denial of service. This only affects TLS 1.3.
CVSS breakdown
CVSS 3.1
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected products
- Golang / Go1.25.9
- Go standard library / crypto/tls0 – 1.25.9
- Go standard library / crypto/tls1.26.0-0 – 1.26.2
Updated 38m ago · 8 sources