medium
5
CWE
476
Advisory Published
CVE Published
Updated

CVE-2014-3469: Null Pointer Dereference

First published: Wed May 28 2014(Updated: )

A NULL pointer dereference flaw was found in libtasn1's asn1_read_value_type() / asn1_read_value() function. If an application called the function with a NULL value for an ivalue argument to determine the amount of memory needed to store data to be read from the ASN.1 input, libtasn1 could incorrectly attempt to dereference the NULL pointer, causing an application using the library to crash. The libtasn1 library is used by the GnuTLS library to parse X.509 certificates. The gnutls packages in Red Hat Enterprise Linux 5 and earlier use bundled libtasn1, packages in Red Hat Enterprise Linux 6 and later depend on the library provided by a separate libtasn1 package. Upstream commits: <a href="http://git.savannah.gnu.org/cgit/libtasn1.git/commit/lib/element.c?id=a8b3e14f84174e01755bfd1be5448fffce7c9ffa">http://git.savannah.gnu.org/cgit/libtasn1.git/commit/lib/element.c?id=a8b3e14f84174e01755bfd1be5448fffce7c9ffa</a> <a href="http://git.savannah.gnu.org/cgit/libtasn1.git/commit/lib/element.c?id=3d6a02f19ff15a38dae9686033e37499b3968256">http://git.savannah.gnu.org/cgit/libtasn1.git/commit/lib/element.c?id=3d6a02f19ff15a38dae9686033e37499b3968256</a> <a href="http://git.savannah.gnu.org/cgit/libtasn1.git/commit/lib/element.c?id=53958290ab731c8486531a3bdef54a933533579d">http://git.savannah.gnu.org/cgit/libtasn1.git/commit/lib/element.c?id=53958290ab731c8486531a3bdef54a933533579d</a>

Credit: secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
redhat/libtasn1<3.6
3.6
GNU GnuTLS<3.5.7
GNU Libtasn1<3.6
Redhat Virtualization=6.0
Debian Debian Linux=7.0
Redhat Enterprise Linux Desktop=5.0
Redhat Enterprise Linux Desktop=6.0
Redhat Enterprise Linux Desktop=7.0
Redhat Enterprise Linux Eus=6.5
Redhat Enterprise Linux Eus=7.3
Redhat Enterprise Linux Eus=7.4
Redhat Enterprise Linux Eus=7.5
Redhat Enterprise Linux Eus=7.6
Redhat Enterprise Linux Eus=7.7
Redhat Enterprise Linux Server=5.0
Redhat Enterprise Linux Server=6.0
Redhat Enterprise Linux Server=7.0
Redhat Enterprise Linux Server Aus=6.5
Redhat Enterprise Linux Server Aus=7.3
Redhat Enterprise Linux Server Aus=7.4
Redhat Enterprise Linux Server Aus=7.6
Redhat Enterprise Linux Server Aus=7.7
Redhat Enterprise Linux Server Tus=6.5
Redhat Enterprise Linux Server Tus=7.3
Redhat Enterprise Linux Server Tus=7.6
Redhat Enterprise Linux Server Tus=7.7
Redhat Enterprise Linux Workstation=5.0
Redhat Enterprise Linux Workstation=6.0
Redhat Enterprise Linux Workstation=7.0
SUSE Linux Enterprise Desktop=11-sp3
Suse Linux Enterprise High Availability Extension=11-sp3
SUSE Linux Enterprise Server=11-sp1
SUSE Linux Enterprise Server=11-sp2
SUSE Linux Enterprise Server=11-sp3
Suse Linux Enterprise Server=11-sp3
SUSE Linux Enterprise Software Development Kit=11-sp3

Remedy

http://lists.gnu.org/archive/html/help-libtasn1/2014-05/msg00006.html

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