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CVE-2019-17068
PuTTY before 0.73 mishandles the "bracketed paste mode" protection mechanism, which may allow a session to be affected by malicious clipboard content. CVE-2019-17067 PuTTY before 0.73 on Windows improperly opens port-forwarding listening sockets, which allows attackers to listen on the same port to steal an incoming connection. CVE-2019-9895 In PuTTY versions before 0.71 on Unix, a remotely triggerable buffer overflow exists in any kind of server-to-client forwarding. CVE-2019-9894 A remotely triggerable memory overwrite in RSA key exchange in PuTTY before 0.71 can occur before host key verification. CVE-2019-9897 Multiple denial-of-service attacks that can be triggered by writing to the terminal exist in PuTTY versions before 0.71. CVE-2019-9896 In PuTTY versions before 0.71 on Windows, local attackers could hijack the application by putting a malicious help file in the same directory as the executable. CVE-2019-9898 Potential recycling of random numbers used in cryptography exists within PuTTY before 0.71. CVE-2020-14002 PuTTY 0.68 through 0.73 has an Observable Discrepancy leading to an information leak in the algorithm negotiation. This allows man-in-the-middle attackers to target initial connection attempts (where no host key for the server has been cached by the client). CVE-2019-17069 PuTTY before 0.73 might allow remote SSH-1 servers to cause a denial of service by accessing freed memory locations via an SSH1_MSG_DISCONNECT message. |
