Net::HTTPS Vulnerability

[Geoff Jacobsen]

Binary package hint: ruby1.8

A vulnerability on the net/https library was reported.

Detailed information should be found at the original advisory:
<URL:http://www.isecpartners.com/advisories/2007-006-rubyssl.txt>

Impact

The vulnerability exists in the connect method within http.rb file which
fails to call post_connection_check after the SSL connection has been
negotiated. Since the server certificate's CN is not validated against
the requested DNS name, the attacker can impersonate the target server
in a SSL connection. The integrity and confidentiality benefits of
SSL are thereby eliminated.
Vulnerable versions

1.8 series

        * 1.8.4 and all prior versions

        * 1.8.5-p113 and all prior versions

        * 1.8.6-p110 and all prior versions

Development version (1.9 series)

    All versions before 2006-09-23

Solution

1.8 series

    Please upgrade to 1.8.6-p111 or 1.8.5-p114.

        * <URL:http://ftp.ruby-lang.org/pub/ruby/1.8/ruby-1.8.6-p111.tar.gz>

        * <URL:http://ftp.ruby-lang.org/pub/ruby/1.8/ruby-1.8.5-p114.tar.gz>

    Please note that a package that corrects this weakness may already be available through your package management software.

Development version (1.9 series)

    Please update your Ruby to a version after 2006-09-23.

[Stephan Rügamer (sruegamer)]

Dear Colleagues,

I'm creating some patches against ruby1.8 and ruby1.9 for gutsy and all other affected versions in our releases.

[Stephan Rügamer (sruegamer)]

Just for your information:

The patches against 1.8.5 for CVE-2007-5162 you can find here: http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=13502
The patches against 1.8.6 for CVE-2007-5162 you can find here:
http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=13504

For CVE-2007-5770 you can find here:
http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=13656

smtp.rb and pop.rb are not affected in our releases, because until then they didn't have any SSL operations enabled. That was changed later.

Regards,

\sh

[Kees Cook (kees)]

Thanks for these debdiffs! I had to adjust the feisty patch (it was not verifying https by default -- the others were). A new script in qa-regression-testing has been written to verify the https and imaps changes. This is being built now and should be published shortly.

[Launchpad Janitor (janitor)]

This bug was fixed in the package ruby1.8 - 1.8.6.36-1ubuntu3.1

---------------
ruby1.8 (1.8.6.36-1ubuntu3.1) gutsy-security; urgency=low

  * SECURITY UPDATE: SSL connections did not check commonName early
    enough, possibly allowing sensitive information to be exposed.
  * debian/patches/100_CVE-2007-5162.dpatch: upstream fixes, from
    http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=13499
  * debian/patches/101_CVE-2007-5770.dpatch: upstream fixes, from
    http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=13656
  * References:
    CVE-2007-5162 CVE-2007-5770 (LP: #149616)

 -- Stephan Hermann <email address hidden> Tue, 13 Nov 2007 19:42:37 +0100

[Launchpad Janitor (janitor)]

This bug was fixed in the package ruby1.8 - 1.8.5-4ubuntu2.1

---------------
ruby1.8 (1.8.5-4ubuntu2.1) feisty-security; urgency=low

  * SECURITY UPDATE: SSL connections did not check commonName early
    enough, possibly allowing sensitive information to be exposed.
  * debian/patches/950_CVE-2007-5162.patch: upstream fixes, from
    http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=13499
  * debian/patches/951_CVE-2007-5770.patch: upstream fixes, from
    http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=13656
  * References:
    CVE-2007-5162 CVE-2007-5770 (LP: #149616)

 -- Stephan Hermann <email address hidden> Tue, 13 Nov 2007 19:42:37 +0100

[Kees Cook (kees)]

ruby1.8 has been released with: http://www.ubuntu.com/usn/usn-594-1

[Hew (hew)]

Ubuntu Edgy Eft is no longer supported, so a SRU will not be issued for this release. Marking Edgy as Won't Fix.

[LumpyCustard (orangelumpycustard)]

Please close for Feisty as Won't Fix? This goes for all the other Feisty bugs.

[Hew (hew)]

Ubuntu Feisty Fawn is no longer supported, so a SRU will not be issued for this release. Marking Feisty as Won't Fix.

[Sergio Zanchetta (primes2h)]

The 18 month support period for Gutsy Gibbon 7.10 has reached its end of life -
http://www.ubuntu.com/news/ubuntu-7.10-eol . As a result, we are closing the
Gutsy task.

[Jamie Strandboge (jdstrand)]

Thank you for reporting this bug to Ubuntu. dapper has reached EOL
(End of Life) and is no longer supported. As a result, this bug
against dapper is being marked "Won't Fix". Please see
https://wiki.ubuntu.com/Releases for currently supported Ubuntu
releases.

Please feel free to report any other bugs you may find.