[exim-dev] [Bug 2571] Out-of-bound buffer read leads to Authentication Bypass in Exim SPA authentication method

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題目: [exim-dev] [Bug 2571] Out-of-bound buffer read leads to Authentication Bypass in Exim SPA authentication method

https://bugs.exim.org/show_bug.cgi?id=2571

--- Comment #2 from Orange Tsai <orange@???> ---
Hi! The patch just checks "pointer + offset" is smaller than the end of
`responseptr`. However, the check condition is prone to integer overflow. An
attacker can make a crash on 32-bit system.

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[exim-dev] [Bug 2571] Out-of-bound buffer read leads to Aut…