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GO-2021-0356
No affected components available
Attackers can cause a crash in SSH servers when the server has been configured by passing a Signer to ServerConfig.AddHostKey such that
- the Signer passed to AddHostKey does not implement AlgorithmSigner, and
- the Signer passed to AddHostKey returns a key of type “ssh-rsa” from its PublicKey method.
Servers that only use Signer implementations provided by the ssh package are unaffected.
Measures severity based on intrinsic characteristics of the vulnerability, independent of environment.
No exploitation activity has been observed at this time. Continue routine monitoring.
Probability that this vulnerability will be exploited in the wild within the next 30 days.
We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.
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