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Date:      Tue, 22 Aug 2017 15:37:42 +0000
From:      bugzilla-noreply@freebsd.org
To:        freebsd-ports-bugs@FreeBSD.org
Subject:   [Bug 221716] security/strongswan: Update to 5.6.0 (Fix security vulnerability)
Message-ID:  <bug-221716-13@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D221716

            Bug ID: 221716
           Summary: security/strongswan: Update to 5.6.0 (Fix security
                    vulnerability)
           Product: Ports & Packages
           Version: Latest
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Some People
          Priority: ---
         Component: Individual Port(s)
          Assignee: freebsd-ports-bugs@FreeBSD.org
          Reporter: i.dani@outlook.com
                CC: strongswan@Nanoteq.com
             Flags: maintainer-feedback?(strongswan@Nanoteq.com)
                CC: strongswan@Nanoteq.com

The current version avilable for FreeBSD is vulnerable since 14.08.2017 and=
 has
already been patched upstream. The current contains a DoS-Vuln.

Changelog: https://wiki.strongswan.org/versions/66

Available version: 5.5.3
Patched version: 5.6.0

Security:
Fixed a DoS vulnerability in the gmp plugin that was caused by insufficient
input validation when verifying RSA signatures, which requires decryption w=
ith
the operation m^e mod n, where m is the signature, and e and n are the expo=
nent
and modulus of the public key. The value m is an integer between 0 and n-1,
however, the gmp plugin did not verify this. So if m equals n the calculati=
on
results in 0, in which case mpz_export() returns NULL. This result wasn't
handled properly causing a null-pointer dereference.

This vulnerability has been registered as CVE-2017-11185 [1].
Please refer to our blog for details. [2]

[1] https://www.cve.mitre.org/cgi-bin/cvename.cgi?name=3D2017-11185
[2]
https://www.strongswan.org/blog/2017/08/14/strongswan-vulnerability-(cve-20=
17-11185).html

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