Protect yourself against future threats.
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AUSCERT External Security Bulletin Redistribution
ESB-2015.0602
gnupg security update
13 March 2015
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AusCERT Security Bulletin Summary
---------------------------------
Product: gnupg
Publisher: Debian
Operating System: Debian GNU/Linux 7
UNIX variants (UNIX, Linux, OSX)
Windows
Impact/Access: Access Privileged Data -- Console/Physical
Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2015-1606 CVE-2015-0837 CVE-2014-3591
Original Bulletin:
http://www.debian.org/security/2015/dsa-3184
Comment: This advisory references vulnerabilities in products which run on
platforms other than Debian. It is recommended that administrators
running gnupg check for an updated version of the software for their
operating system.
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Debian Security Advisory DSA-3184-1 security@debian.org
http://www.debian.org/security/ Alessandro Ghedini
March 12, 2015 http://www.debian.org/security/faq
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Package : gnupg
CVE ID : CVE-2014-3591 CVE-2015-0837 CVE-2015-1606
Multiple vulnerabilities were discovered in GnuPG, the GNU Privacy Guard:
CVE-2014-3591
The Elgamal decryption routine was susceptible to a side-channel
attack discovered by researchers of Tel Aviv University. Ciphertext
blinding was enabled to counteract it. Note that this may have a
quite noticeable impact on Elgamal decryption performance.
CVE-2015-0837
The modular exponentiation routine mpi_powm() was susceptible to a
side-channel attack caused by data-dependent timing variations when
accessing its internal pre-computed table.
CVE-2015-1606
The keyring parsing code did not properly reject certain packet
types not belonging in a keyring, which caused an access to memory
already freed. This could allow remote attackers to cause a denial
of service (crash) via crafted keyring files.
For the stable distribution (wheezy), these problems have been fixed in
version 1.4.12-7+deb7u7.
For the upcoming stable distribution (jessie), these problems have been
fixed in version 1.4.18-7.
For the unstable distribution (sid), these problems have been fixed in
version 1.4.18-7.
We recommend that you upgrade your gnupg packages.
Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/
Mailing list: debian-security-announce@lists.debian.org
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