Mandriva: 2013:167: openvpn
Posted by Benjamin D. Thomas   
Mandrake Updated openvpn package fixes security vulnerability: OpenVPN 2.3.0 and earlier running in UDP mode are subject to chosen ciphertext injection due to a non-constant-time HMAC comparison function. Plaintext recovery may be possible using a padding oracle [More...]
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 Mandriva Linux Security Advisory                         MDVSA-2013:167
 http://www.mandriva.com/en/support/security/
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 Package : openvpn
 Date    : May 27, 2013
 Affected: Business Server 1.0, Enterprise Server 5.0
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 Problem Description:

 Updated openvpn package fixes security vulnerability:
 
 OpenVPN 2.3.0 and earlier running in UDP mode are subject to chosen
 ciphertext injection due to a non-constant-time HMAC comparison
 function. Plaintext recovery may be possible using a padding oracle
 attack on the CBC mode cipher implementation of the crypto library,
 optimistically at a rate of about one character per 3 hours. PolarSSL
 seems vulnerable to such an attack; the vulnerability of OpenSSL has
 not been verified or tested (CVE-2013-2061).
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 References:

 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-2061
 https://wiki.mageia.org/en/Support/Advisories/MGASA-2013-0153
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 Updated Packages:

 Mandriva Enterprise Server 5:
 c3f9d0b84493a7df95b526bf27684644  mes5/i586/openvpn-2.1-0.rc10.2.4mdvmes5.2.i586.rpm 
 c1808613e341bb1ebcabcebb2ad5fd47  mes5/SRPMS/openvpn-2.1-0.rc10.2.4mdvmes5.2.src.rpm

 Mandriva Enterprise Server 5/X86_64:
 ff387b293bcba6c126b14431d1bcb7ab  mes5/x86_64/openvpn-2.1-0.rc10.2.4mdvmes5.2.x86_64.rpm 
 c1808613e341bb1ebcabcebb2ad5fd47  mes5/SRPMS/openvpn-2.1-0.rc10.2.4mdvmes5.2.src.rpm

 Mandriva Business Server 1/X86_64:
 9644de77991bb55ddff9801c7cb8f5a8  mbs1/x86_64/openvpn-2.2.2-6.1.mbs1.x86_64.rpm 
 b4b073c276bd20929db3bcb2b6e80621  mbs1/SRPMS/openvpn-2.2.2-6.1.mbs1.src.rpm
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 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
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