bugtraq - [ MDVSA-2015:204 ] librsync

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Date: Mon, 27 Apr 2015 09:11:00 +0200
From: security@...driva.com
To: bugtraq@...urityfocus.com
Subject: [ MDVSA-2015:204 ] librsync

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 _______________________________________________________________________

 Mandriva Linux Security Advisory                         MDVSA-2015:204
 http://www.mandriva.com/en/support/security/
 _______________________________________________________________________

 Package : librsync
 Date    : April 27, 2015
 Affected: Business Server 1.0
 _______________________________________________________________________

 Problem Description:

 Updated librsync packages fix security vulnerability:

 librsync before 1.0.0 used a truncated MD4 strong check sum to match
 blocks. However, MD4 is not cryptographically strong. It&#039;s possible
 that an attacker who can control the contents of one part of a file
 could use it to control other regions of the file, if it&#039;s transferred
 using librsync/rdiff (CVE-2014-8242).

 The change to fix this is not backward compatible with older versions
 of librsync. Backward compatibility can be obtained using the new
 rdiff sig --hash=md4 option or through specifying the signature magic
 in the API, but this should not be used when either the old or new
 file contain untrusted data.

 Also, any applications that use the librsync library will need to
 be recompiled against the updated library. The rdiff-backup packages
 have been rebuilt for this reason.
 _______________________________________________________________________

 References:

 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-8242
 http://advisories.mageia.org/MGASA-2015-0146.html
 _______________________________________________________________________

 Updated Packages:

 Mandriva Business Server 1/X86_64:
 e9e5dbb84ff6effa94d8b37d805e4500  mbs1/x86_64/lib64rsync2-1.0.0-1.mbs1.x86_64.rpm
 db4b256939b54eb5919eceedf50f4192  mbs1/x86_64/lib64rsync-devel-1.0.0-1.mbs1.x86_64.rpm
 ffaaf1c1364528d0c18bdda8cf514c34  mbs1/x86_64/rdiff-1.0.0-1.mbs1.x86_64.rpm
 fd173f99aecfaa9d1d8d9af132b136b6  mbs1/x86_64/rdiff-backup-1.3.3-6.1.mbs1.x86_64.rpm 
 707dc6da51d7451541ce83400ee33f3a  mbs1/SRPMS/librsync-1.0.0-1.mbs1.src.rpm
 eb91121a971f6079d3b666419e08e0db  mbs1/SRPMS/rdiff-backup-1.3.3-6.1.mbs1.src.rpm
 _______________________________________________________________________

 To upgrade automatically use MandrivaUpdate or urpmi.  The verification
 of md5 checksums and GPG signatures is performed automatically for you.

 All packages are signed by Mandriva for security.  You can obtain the
 GPG public key of the Mandriva Security Team by executing:

  gpg --recv-keys --keyserver pgp.mit.edu 0x22458A98

 You can view other update advisories for Mandriva Linux at:

  http://www.mandriva.com/en/support/security/advisories/

 If you want to report vulnerabilities, please contact

  security_(at)_mandriva.com
 _______________________________________________________________________

 Type Bits/KeyID     Date       User ID
 pub  1024D/22458A98 2000-07-10 Mandriva Security Team
  <security*mandriva.com>
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