openssh unix dev - Mar 2003 - [Bug 519] parsing bug in host.allow element of login.conf(5)

http://bugzilla.mindrot.org/show_bug.cgi?id=519

           Summary: parsing bug in host.allow element of login.conf(5)
           Product: Portable OpenSSH
           Version: 3.5p1
          Platform: All
               URL: http://cvsweb.netbsd.org/bsdweb.cgi/src/crypto/dist/ssh/
                    auth.c#rev1.18
        OS/Version: NetBSD
            Status: NEW
          Severity: normal
          Priority: P2
         Component: sshd
        AssignedTo: openssh-unix-dev at mindrot.org
        ReportedBy: lukem at netbsd.org


There's a bug in the parser code for the "host.allow" element of
login.conf(5).
If you have more than one hostname in a comma separated argument to
"host.allow=", and there's not a positive or negative match on the
first
element, sshd will infinitely loop because there's a missing strtok() to
advance
to the next field.
The URL quoted above contains the cvs commit message I made to NetBSD-current to
fix the problem there.



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