putty: use-after-free on SSH1_MSG_DISCONNECT (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.
References:
- https://lists.tartarus.org/pipermail/putty-announce/2019/000029.html
- https://nvd.nist.gov/vuln/detail/CVE-2019-17069
Patch:
https://git.tartarus.org/?p=simon/putty.git;a=commit;h=69201ad8936fe0ff1b8723b7a43accb5e9f1c888