Protect yourself against future threats.
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AUSCERT External Security Bulletin Redistribution
ESB-2013.1431
gnupg security update
11 October 2013
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: gnupg
gnupg2
Publisher: Debian
Operating System: Debian GNU/Linux 7
Debian GNU/Linux 6
UNIX variants (UNIX, Linux, OSX)
Windows
Impact/Access: Denial of Service -- Remote with User Interaction
Reduced Security -- Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2013-4402 CVE-2013-4351
Original Bulletin:
http://www.debian.org/security/2013/dsa-2773
http://www.debian.org/security/2013/dsa-2774
Comment: This advisory references vulnerabilities in products which run on
platforms other than Debian. It is recommended that administrators
running gnupg or gnupg2 check for an updated version of the software
for their operating system.
This bulletin contains two (2) Debian security advisories.
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Debian Security Advisory DSA-2773-1 security@debian.org
http://www.debian.org/security/ Thijs Kinkhorst
October 10, 2013 http://www.debian.org/security/faq
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Package : gnupg
Vulnerability : several
Problem type : local (remote)
Debian-specific: no
CVE ID : CVE-2013-4351 CVE-2013-4402
Debian Bug : 725439 722722
Two vulnerabilities were discovered in GnuPG, the GNU privacy guard,
a free PGP replacement. The Common Vulnerabilities and Exposures
project identifies the following problems:
CVE-2013-4351
When a key or subkey had its "key flags" subpacket set to all bits
off, GnuPG currently would treat the key as having all bits set.
That is, where the owner wanted to indicate "no use permitted",
GnuPG would interpret it as "all use permitted". Such "no use
permitted" keys are rare and only used in very special circumstances.
CVE-2013-4402
Infinite recursion in the compressed packet parser was possible
with crafted input data, which may be used to cause a denial of
service.
For the oldstable distribution (squeeze), these problems have been fixed in
version 1.4.10-4+squeeze3.
For the stable distribution (wheezy), these problems have been fixed in
version 1.4.12-7+deb7u2.
For the unstable distribution (sid), these problems have been fixed in
version 1.4.15-1.
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: http://www.debian.org/security/
Mailing list: debian-security-announce@lists.debian.org
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Debian Security Advisory DSA-2774-1 security@debian.org
http://www.debian.org/security/ Thijs Kinkhorst
October 10, 2013 http://www.debian.org/security/faq
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Package : gnupg2
Vulnerability : several
Problem type : local (remote)
Debian-specific: no
CVE ID : CVE-2013-4351 CVE-2013-4402
Debian Bug : 722724 725433
Two vulnerabilities were discovered in GnuPG 2, the GNU privacy guard,
a free PGP replacement. The Common Vulnerabilities and Exposures
project identifies the following problems:
CVE-2013-4351
When a key or subkey had its "key flags" subpacket set to all bits
off, GnuPG currently would treat the key as having all bits set.
That is, where the owner wanted to indicate "no use permitted",
GnuPG would interpret it as "all use permitted". Such "no use
permitted" keys are rare and only used in very special circumstances.
CVE-2013-4402
Infinite recursion in the compressed packet parser was possible
with crafted input data, which may be used to cause a denial of
service.
For the oldstable distribution (squeeze), these problems have been fixed in
version 2.0.14-2+squeeze2.
For the stable distribution (wheezy), these problems have been fixed in
version 2.0.19-2+deb7u1.
For the unstable distribution (sid), these problems have been fixed in
version 2.0.22-1.
We recommend that you upgrade your gnupg2 packages.
Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: http://www.debian.org/security/
Mailing list: debian-security-announce@lists.debian.org
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