[Bug 1378] New: incorrect port check in parse_forward()

[bugzilla-daemon at bugzilla.mindrot.org]

https://bugzilla.mindrot.org/show_bug.cgi?id=1378

           Summary: incorrect port check in parse_forward()
    Classification: Unclassified
           Product: Portable OpenSSH
           Version: 4.7p1
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P3
         Component: ssh
        AssignedTo: bitbucket at mindrot.org
        ReportedBy: Jan.Pechanec at Sun.COM


Created an attachment (id=1365)
 --> (http://bugzilla.mindrot.org/attachment.cgi?id=1365)
fix for the bug

the check whether ports were parsed OK is not correct; it doesn't
recognize when only one of the ports is incorrect:

# ./ssh -L 99999:localhost:4444 localhost
Password:

# ./ssh -L 99999:localhost:88888 localhost 
Bad local forwarding specification '99999:localhost:88888'

this happens only when root uses ssh(1). Unprivileged client gets an
error  "privileged port".

patch attached.

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