CVE-2019-17498: Integer Overflow or Wraparound

October 21, 2019 (updated October 14, 2020)

In libssh2 v1.9.0 versions, the SSH_MSG_DISCONNECT logic in packet.c has an integer overflow in a bounds check, enabling an attacker to specify an arbitrary (out-of-bounds) offset for a subsequent memory read. A crafted SSH server may be able to disclose sensitive information or cause a denial of service condition on the client system when a user connects to the server.

References

nvd.nist.gov/vuln/detail/CVE-2019-17498

Code Behaviors & Features

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