Synopsis:          Important: gnutls security update
Advisory ID:       SLSA-2014:0594-1
Issue Date:        2014-06-03
CVE Numbers:       CVE-2014-3466
                   CVE-2014-3467
                   CVE-2014-3468
                   CVE-2014-3469
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A flaw was found in the way GnuTLS parsed session IDs from ServerHello
messages of the TLS/SSL handshake. A malicious server could use this flaw
to send an excessively long session ID value, which would trigger a buffer
overflow in a connecting TLS/SSL client application using GnuTLS, causing
the client application to crash or, possibly, execute arbitrary code.
(CVE-2014-3466)

It was discovered that the asn1_get_bit_der() function of the libtasn1
library incorrectly reported the length of ASN.1-encoded data. Specially
crafted ASN.1 input could cause an application using libtasn1 to perform
an out-of-bounds access operation, causing the application to crash or,
possibly, execute arbitrary code. (CVE-2014-3468)

Multiple incorrect buffer boundary check issues were discovered in
libtasn1. Specially crafted ASN.1 input could cause an application using
libtasn1 to crash. (CVE-2014-3467)

Multiple NULL pointer dereference flaws were found in libtasn1's
asn1_read_value() function. Specially crafted ASN.1 input could cause an
application using libtasn1 to crash, if the application used the
aforementioned function in a certain way. (CVE-2014-3469)

For the update to take effect, all applications linked to the GnuTLS or
libtasn1 library must be restarted.
--

SL5
  x86_64
    gnutls-1.4.1-16.el5_10.i386.rpm
    gnutls-1.4.1-16.el5_10.x86_64.rpm
    gnutls-debuginfo-1.4.1-16.el5_10.i386.rpm
    gnutls-debuginfo-1.4.1-16.el5_10.x86_64.rpm
    gnutls-utils-1.4.1-16.el5_10.x86_64.rpm
    gnutls-devel-1.4.1-16.el5_10.i386.rpm
    gnutls-devel-1.4.1-16.el5_10.x86_64.rpm
  i386
    gnutls-1.4.1-16.el5_10.i386.rpm
    gnutls-debuginfo-1.4.1-16.el5_10.i386.rpm
    gnutls-utils-1.4.1-16.el5_10.i386.rpm
    gnutls-devel-1.4.1-16.el5_10.i386.rpm

- Scientific Linux Development Team