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Test ID:1.3.6.1.4.1.25623.1.0.702730
Category:Debian Local Security Checks
Title:Debian Security Advisory DSA 2730-1 (gnupg - information leak)
Summary:Yarom and Falkner discovered that RSA secret keys could be leaked via;a side channel attack, where a malicious local user could obtain private;key information from another user on the system.;;This update fixes this issue for the 1.4 series of GnuPG. GnuPG 2.x is;affected through its use of the libgcrypt11 library, a fix for which;will be published in DSA 2731.
Description:Summary:
Yarom and Falkner discovered that RSA secret keys could be leaked via
a side channel attack, where a malicious local user could obtain private
key information from another user on the system.

This update fixes this issue for the 1.4 series of GnuPG. GnuPG 2.x is
affected through its use of the libgcrypt11 library, a fix for which
will be published in DSA 2731.

Affected Software/OS:
gnupg on Debian Linux

Solution:
For the oldstable distribution (squeeze), this problem has been fixed in
version 1.4.10-4+squeeze2.

For the stable distribution (wheezy), this problem has been fixed in
version 1.4.12-7+deb7u1.

For the unstable distribution (sid), this problem has been fixed in
version 1.4.14-1.

We recommend that you upgrade your gnupg packages.

CVSS Score:
1.9

CVSS Vector:
AV:L/AC:M/Au:N/C:P/I:N/A:N

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2013-4242
BugTraq ID: 61464
http://www.securityfocus.com/bid/61464
CERT/CC vulnerability note: VU#976534
http://www.kb.cert.org/vuls/id/976534
Debian Security Information: DSA-2730 (Google Search)
http://www.debian.org/security/2013/dsa-2730
Debian Security Information: DSA-2731 (Google Search)
http://www.debian.org/security/2013/dsa-2731
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=717880
http://eprint.iacr.org/2013/448
http://lists.gnupg.org/pipermail/gnupg-announce/2013q3/000330.html
RedHat Security Advisories: RHSA-2013:1457
http://rhn.redhat.com/errata/RHSA-2013-1457.html
http://secunia.com/advisories/54318
http://secunia.com/advisories/54321
http://secunia.com/advisories/54332
http://secunia.com/advisories/54375
SuSE Security Announcement: openSUSE-SU-2013:1294 (Google Search)
http://lists.opensuse.org/opensuse-updates/2013-08/msg00003.html
http://www.ubuntu.com/usn/USN-1923-1
CopyrightCopyright (C) 2013 Greenbone Networks GmbH http://greenbone.net

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