openssh bugs - Nov 2014 - [Bug 2313] New: Corrupt KRL file when using multiple CA.

https://bugzilla.mindrot.org/show_bug.cgi?id=2313

            Bug ID: 2313
           Summary: Corrupt KRL file when using multiple CA.
           Product: Portable OpenSSH
           Version: 6.5p1
          Hardware: Other
                OS: Linux
            Status: NEW
          Severity: major
          Priority: P5
         Component: ssh-keygen
          Assignee: unassigned-bugs at mindrot.org
          Reporter: peter at pean.org

When I have a KRL containing revokations from multiple CA it gets
corrupted some way. sshd cant read it.

This is what sshd says:
debug1: KRL version 0 generated at 20141114T080704
debug3: ssh_krl_from_blob: first pass, section 0x01
debug3: ssh_krl_from_blob: first pass, section 0x01
debug3: ssh_krl_from_blob: second pass, section 0x01
debug3: parse_revoked_certs: subsection type 0x20
debug3: revoked_certs_for_ca_key: new CA RSA
debug3: parse_revoked_certs: subsection type 0x22
debug3: parse_revoked_certs: subsection type 0x20
debug3: ssh_krl_from_blob: second pass, section 0x01
debug3: parse_revoked_certs: subsection type 0x20
debug3: parse_revoked_certs: subsection type 0x22
debug3: parse_revoked_certs: subsection type 0x20
buffer_get_string_ptr: bad string length 268032
parse_revoked_certs: buffer error
Invalid KRL, refusing public key authentication


I generated the KRL using two textfiles containing 
multiple serial: <serial> lines like this:
ssh-keygen -k -u -f revoked_keys.bin -s ca1.pub revoked_keys1
ssh-keygen -k -u -f revoked_keys.bin -s ca2.pub revoked_keys2

I have tried to remove the revoked_keys.bin and generate a new one
without success. I even tried revoking from ca2 first and then ca1..

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https://bugzilla.mindrot.org/show_bug.cgi?id=2313

Damien Miller <djm at mindrot.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
             Blocks|                            |2266
                 CC|                            |djm at mindrot.org
         Resolution|---                         |FIXED

--- Comment #1 from Damien Miller <djm at mindrot.org> ---
Fixed in -current and will be released in OpenSSH 6.8:
> commit 9f9fad0191028edc43d100d0ded39419b6895fdf
> Author: djm at openbsd.org <djm at openbsd.org>
> Date:   Mon Nov 17 00:21:40 2014 +0000
> 
>     upstream commit
>     
>     fix KRL generation when multiple CAs are in use
>     
>     We would generate an invalid KRL when revoking certs by serial
>     number for multiple CA keys due to a section being written out
>     twice.
>     
>     Also extend the regress test to catch this case by having it
>     produce a multi-CA KRL.
>     
>     Reported by peter AT pean.org
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https://bugzilla.mindrot.org/show_bug.cgi?id=2313

Damien Miller <djm at mindrot.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |CLOSED

--- Comment #2 from Damien Miller <djm at mindrot.org> ---
openssh-6.8 is released

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