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[Bug 2003] New: [mux.c] fix memory leaks when new session message is malformed

 

 

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May 2, 2012, 11:10 AM

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[Bug 2003] New: [mux.c] fix memory leaks when new session message is malformed

https://bugzilla.mindrot.org/show_bug.cgi?id=2003

Bug #: 2003
Summary: [mux.c] fix memory leaks when new session message is
malformed
Classification: Unclassified
Product: Portable OpenSSH
Version: 6.0p1
Platform: All
OS/Version: All
Status: NEW
Severity: critical
Priority: P2
Component: ssh
AssignedTo: unassigned-bugs [at] mindrot
ReportedBy: Bert.Wesarg [at] googlemail


Created attachment 2148
--> https://bugzilla.mindrot.org/attachment.cgi?id=2148
Patch fixing memory leak

The malf: exception block is also used when extracting the environments
for the new session, therefor we need also to free those if it fails.

Also free the context object in two cleanup blocks.

I set the severity to critical because this could be used to DOS the
muxserver by leaking memory in them.

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