-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512

- --------------------------------------------------------------------------
Debian Security Advisory DSA-2783-2                   security@debian.org
http://www.debian.org/security/                      Salvatore Bonaccorso
October 24, 2013                       http://www.debian.org/security/faq
- --------------------------------------------------------------------------

Package        : librack-ruby
Vulnerability  : several
Problem type   : remote
Debian-specific: no
CVE ID         : CVE-2011-5036 CVE-2013-0183 CVE-2013-0184 CVE-2013-0263
Debian Bug     : 653963 698440 700226

The update of librack-ruby in DSA-2783-1 also addressed CVE-2013-0183.
The patch applied breaks rails applications like redmine (see Debian Bug
#727187). Updated packages are available to address this problem.

For reference, the original advisory text follows:

Several vulnerabilities were discovered in Rack, a modular Ruby
webserver interface. The Common Vulnerabilites and Exposures project
identifies the following vulnerabilities:

CVE-2011-5036

    Rack computes hash values for form parameters without restricting
    the ability to trigger hash collisions predictably, which allows
    remote attackers to cause a denial of service (CPU consumption)
    by sending many crafted parameters.

CVE-2013-0184

    Vulnerability in Rack::Auth::AbstractRequest allows remote
    attackers to cause a denial of service via unknown vectors.

CVE-2013-0263

    Rack::Session::Cookie allows remote attackers to guess the
    session cookie, gain privileges, and execute arbitrary code via a
    timing attack involving am HMAC comparison function that does not
    run in constant time.

For the oldstable distribution (squeeze), these problems have been fixed in
version 1.1.0-4+squeeze1.

The stable, testing and unstable distributions do not contain the
librack-ruby package. They have already been addressed in version
1.4.1-2.1 of the ruby-rack package.

We recommend that you upgrade your librack-ruby packages.

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: http://www.debian.org/security/

Mailing list: debian-security-announce@lists.debian.org
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.15 (GNU/Linux)
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=HGaa
-----END PGP SIGNATURE-----


-- 
To UNSUBSCRIBE, email to debian-security-announce-REQUEST@lists.debian.org
with a subject of "unsubscribe". Trouble? Contact
 listmaster@lists.debian.org
Archive: http://lists.debian.org/E1VZQbC-0005NR-4b@master.debian.org