[Bug 2819] New: Problem with "scp -C" on specific files only.

[bugzilla-daemon at bugzilla.mindrot.org]

https://bugzilla.mindrot.org/show_bug.cgi?id=2819

            Bug ID: 2819
           Summary: Problem with "scp -C" on specific files only.
           Product: Portable OpenSSH
           Version: 7.5p1
          Hardware: PPC
                OS: AIX
            Status: NEW
          Severity: major
          Priority: P5
         Component: scp
          Assignee: unassigned-bugs at mindrot.org
          Reporter: mayasha9 at in.ibm.com

Created attachment 3113
  --> https://bugzilla.mindrot.org/attachment.cgi?id=3113&action=edit
scp and sshd logs

Hello Team ,
"scp -C" (compression) is not working with some special kind of files.

The source code has been compiled with xlc compiler.
# xlc -qversion
IBM XL C/C++ Enterprise Edition V8.0 for AIX
Version: 08.00.0000.0012

The issue has been seen on AIX 6.1.0.0, AIX 7.1.0.0, AIX 7.2.0.0.

You can recreate the issue in the following way :- 

# scp -C /usr/lib/libssl.a localhost:/
root at localhost's password:
libssl.a                              0%    0     0.0KB/s   --:-- ETA
ssh_packet_send: invalid format
lost connection

* Here i am using libssl.a library file as a special file. 
Also i am sending debug logs for both scp and sshd daemon.

Thanks 
Mayank Sharma
AIX Opensource Security, IBM.

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