[stunnel-users] Security Problems with 4.35

Michal Trojnara Michal.Trojnara at mirt.net
Thu Feb 10 16:23:48 CET 2011

Stefan Behte wrote:
> "CLOEXEC file descriptor leaks fixed on Linux >= 2.6.28 with glibc >=
> 2.10. Irreparable race condition leaks remain on other Unix platforms.
> issue may have security implications on some deployments."
> I searched a bit, but did not find an exploit or more information on the
> severity of this issue. Could someone elaborate the problem a bit? I
> diff to the previous version and have a look, but that will take quite
> time, and my C is weak...

Try this link:


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