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Sicherheit: Zwei Probleme in gnupg
Aktuelle Meldungen Distributionen
Name: Zwei Probleme in gnupg
ID: FEDORA-2015-2893
Distribution: Fedora
Plattformen: Fedora 21
Datum: Fr, 6. März 2015, 08:43
Referenzen: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-3591
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-0837

Originalnachricht

Name        : gnupg
Product : Fedora 21
Version : 1.4.19
Release : 1.fc21
URL : http://www.gnupg.org/
Summary : A GNU utility for secure communication and data storage
Description :
GnuPG (GNU Privacy Guard) is a GNU utility for encrypting data and
creating digital signatures. GnuPG has advanced key management
capabilities and is compliant with the proposed OpenPGP Internet
standard described in RFC2440. Since GnuPG doesn't use any patented
algorithm, it is not compatible with any version of PGP2 (PGP2.x uses
only IDEA for symmetric-key encryption, which is patented worldwide).

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Update Information:

New upstream v1.4.19
- Use ciphertext blinding for Elgamal decryption [CVE-2014-3591]
- Fixed data-dependent timing variations in modular exponentiation [related to
CVE-2015-0837]
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ChangeLog:

* Fri Feb 27 2015 Brian C. Lane <bcl@redhat.com> 1.4.19-1
- New upstream v1.4.19
- Use ciphertext blinding for Elgamal decryption [CVE-2014-3591]
- Fixed data-dependent timing variations in modular exponentiation [related to
CVE-2015-0837]
- Drop patches now included upstream
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References:

[ 1 ] Bug #1198145 - CVE-2014-3591 libgcrypt: use ciphertext blinding for
Elgamal decryption (new side-channel attack)
https://bugzilla.redhat.com/show_bug.cgi?id=1198145
[ 2 ] Bug #1198147 - CVE-2015-0837 libgcrypt: last-level cache side-channel
attack
https://bugzilla.redhat.com/show_bug.cgi?id=1198147
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This update can be installed with the "yum" update program. Use
su -c 'yum update gnupg' at the command line.
For more information, refer to "Managing Software with yum",
available at http://docs.fedoraproject.org/yum/.

All packages are signed with the Fedora Project GPG key. More details on the
GPG keys used by the Fedora Project can be found at
https://fedoraproject.org/keys
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