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2013-08-06 PuTTY 0.63 released, fixing SECURITY HOLES
PuTTY 0.63, released today, fixes four security holes in 0.62 and before: vuln-modmul, vuln-signature-stringlen, vuln-bignum-division-by-zero, private-key-not-wiped. Other than that, there are mostly bug fixes from 0.62 and a few small features.
引用元: PuTTY: a free telnet/ssh client,
http://www.chiark.greenend.org.uk/~sgtatham/putty/
