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From SOT Linux 2003 Server CD-ROM

Name: libsafe Distribution: SOT Linux 2003 R1 Server
Version: 2.0.13 Vendor: SOT
Release: 1 Build date: Tue Jan 7 17:09:20 2003
Group: System/Libraries Build host:
Size: 778241 Source RPM: libsafe-2.0.13-1.src.rpm
Packager: SOT Linux Team <>
Summary: Stack Overflow protection
The libsafe library is designed to overwrite dangerous
library C function like strcpy / snprintf and perform
bound checking on the destination buffer address in order
to detect an eventual Stack Overflow attempt.

The libsafe library protects a process against the exploitation of buffer
overflow vulnerabilities in process stacks. Libsafe works with any
existing pre-compiled executable and can be used transparently, even on a
system-wide basis. The method intercepts all calls to library functions
that are known to be vulnerable. A substitute version of the corresponding
function implements the original functionality, but in a manner that
ensures that any buffer overflows are contained within the current stack
frame. Libsafe has been shown to detect several known attacks and can
potentially prevent yet unknown attacks. Experiments indicate that the
performance overhead of libsafe is negligible.





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SOT Linux team, Tue Jun 3 14:54:42 2003