Security Advisory Important: gnutls security update

Advisory: RHSA-2014:0594-1
Type: Security Advisory
Severity: Important
Issued on: 2014-06-03
Last updated on: 2014-06-03
Affected Products: RHEL Desktop Workstation (v. 5 client)
Red Hat Enterprise Linux (v. 5 server)
Red Hat Enterprise Linux Desktop (v. 5 client)
CVEs (cve.mitre.org): CVE-2014-3466
CVE-2014-3467
CVE-2014-3468
CVE-2014-3469

Details

Updated gnutls packages that fix multiple security issues are now available
for Red Hat Enterprise Linux 5.

The Red Hat Security Response Team has rated this update as having
Important security impact. Common Vulnerability Scoring System (CVSS) base
scores, which give detailed severity ratings, are available for each
vulnerability from the CVE links in the References section.

The GnuTLS library provides support for cryptographic algorithms and for
protocols such as Transport Layer Security (TLS). The gnutls packages also
include the libtasn1 library, which provides Abstract Syntax Notation One
(ASN.1) parsing and structures management, and Distinguished Encoding Rules
(DER) encoding and decoding functions.

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)

Red Hat would like to thank GnuTLS upstream for reporting these issues.
Upstream acknowledges Joonas Kuorilehto of Codenomicon as the original
reporter of CVE-2014-3466.

Users of GnuTLS are advised to upgrade to these updated packages, which
correct these issues. For the update to take effect, all applications
linked to the GnuTLS or libtasn1 library must be restarted.


Solution

Before applying this update, make sure all previously released errata
relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to use the
Red Hat Network to apply this update are available at
https://access.redhat.com/site/articles/11258

Updated packages

RHEL Desktop Workstation (v. 5 client)

SRPMS:
gnutls-1.4.1-16.el5_10.src.rpm     MD5: 9276ec80d47e4533a642e28491349b89
SHA-256: 7116df5683ce671aa5a3450917e0a1e01f886d7e3361d22202ceb68fa6dc1874
 
IA-32:
gnutls-debuginfo-1.4.1-16.el5_10.i386.rpm     MD5: 5bc0201f80efc469ec6cb3a3909ee7d6
SHA-256: 2d397670e05f789910ce8ed7fce3eb34122f874ce045bce74991670090c2e357
gnutls-devel-1.4.1-16.el5_10.i386.rpm     MD5: f4539fb890a61d119d306d37b461a6c8
SHA-256: 9fae428aa3516c29e670c6d503d5d0adac28d67bfc6f1cda39515a06923bd58e
 
x86_64:
gnutls-debuginfo-1.4.1-16.el5_10.i386.rpm     MD5: 5bc0201f80efc469ec6cb3a3909ee7d6
SHA-256: 2d397670e05f789910ce8ed7fce3eb34122f874ce045bce74991670090c2e357
gnutls-debuginfo-1.4.1-16.el5_10.x86_64.rpm     MD5: bd201c17298e8a2da6ec37d32a35475e
SHA-256: 16760c393aac3ee0f41ec274964597ac7920e7fe1fa15ca31403b70c0326f114
gnutls-devel-1.4.1-16.el5_10.i386.rpm     MD5: f4539fb890a61d119d306d37b461a6c8
SHA-256: 9fae428aa3516c29e670c6d503d5d0adac28d67bfc6f1cda39515a06923bd58e
gnutls-devel-1.4.1-16.el5_10.x86_64.rpm     MD5: 030fbe509e42011362b854c13d4415ec
SHA-256: 1b2263e49f0c7d6dfc1c811d79629fb37f89d4f9084b0ba8bfe6d61e2c19e8b8
 
Red Hat Enterprise Linux (v. 5 server)

SRPMS:
gnutls-1.4.1-16.el5_10.src.rpm     MD5: 9276ec80d47e4533a642e28491349b89
SHA-256: 7116df5683ce671aa5a3450917e0a1e01f886d7e3361d22202ceb68fa6dc1874
 
IA-32:
gnutls-1.4.1-16.el5_10.i386.rpm     MD5: 599f420a8a95a10595b4c2e038b4bb30
SHA-256: fd557097d2b151a651bdc57debed14d20f93ce8e4fa8950ae0983c2a95edf833
gnutls-debuginfo-1.4.1-16.el5_10.i386.rpm     MD5: 5bc0201f80efc469ec6cb3a3909ee7d6
SHA-256: 2d397670e05f789910ce8ed7fce3eb34122f874ce045bce74991670090c2e357
gnutls-devel-1.4.1-16.el5_10.i386.rpm     MD5: f4539fb890a61d119d306d37b461a6c8
SHA-256: 9fae428aa3516c29e670c6d503d5d0adac28d67bfc6f1cda39515a06923bd58e
gnutls-utils-1.4.1-16.el5_10.i386.rpm     MD5: c85ad8966af21e04e81a0cfca8f285ff
SHA-256: 1821c31a23df55e604709326fbe3e199e4e5888becf338f0998052e8456eff3b
 
IA-64:
gnutls-1.4.1-16.el5_10.i386.rpm     MD5: 599f420a8a95a10595b4c2e038b4bb30
SHA-256: fd557097d2b151a651bdc57debed14d20f93ce8e4fa8950ae0983c2a95edf833
gnutls-1.4.1-16.el5_10.ia64.rpm     MD5: 98ebafc4a007ae01f2f7f6422db22fb1
SHA-256: 649e5dcde140e0b75d8919e84493197c8d12cf07bb452e48cff276c3dcab990b
gnutls-debuginfo-1.4.1-16.el5_10.i386.rpm     MD5: 5bc0201f80efc469ec6cb3a3909ee7d6
SHA-256: 2d397670e05f789910ce8ed7fce3eb34122f874ce045bce74991670090c2e357
gnutls-debuginfo-1.4.1-16.el5_10.ia64.rpm     MD5: 748e2c05587dc54c9a087c704084b952
SHA-256: 720175fab6ac97fb650d211c4f7a6d7619c34ba1acd29fd90a8c3359e5e66253
gnutls-devel-1.4.1-16.el5_10.ia64.rpm     MD5: 1de97aa0b2dd39e1ee1f91b9dfba4cb7
SHA-256: 221df6500931cbca7f518aa3e4ca61b441de3c3da0270281ddb041ea21a62c30
gnutls-utils-1.4.1-16.el5_10.ia64.rpm     MD5: d00c03ab73a5c5db995238e3e564908d
SHA-256: 8bb0ae93a42dd9dc75e8271059295b7540d9da864ef77b7a3c795f992c84fba9
 
PPC:
gnutls-1.4.1-16.el5_10.ppc.rpm     MD5: 63613870872985eb86c118ca36e705f9
SHA-256: ec84b5ec07145ae291755a2971b75ea8d8a3dcaa12b960c4d1b07fc10278b655
gnutls-1.4.1-16.el5_10.ppc64.rpm     MD5: 8bc7b471798fa89764835910b9b35b8d
SHA-256: 9dbabb76bdb50a70e65e44d48eb76c9b090ec66ae0764a7cae86fccd194ce224
gnutls-debuginfo-1.4.1-16.el5_10.ppc.rpm     MD5: 7ddfd3edc25c4210cb07fa0e453f93f7
SHA-256: 78cebe828f7838d304b4e329732f5a80885cad24d615cd1b2fe92e16ac85897b
gnutls-debuginfo-1.4.1-16.el5_10.ppc64.rpm     MD5: 1126e3e62704cb01874c14df6bb3a8e0
SHA-256: 7792739a4589d9de7d3c33e2551f2a99921d18741a9e225f465f0a44321b9869
gnutls-devel-1.4.1-16.el5_10.ppc.rpm     MD5: 4d0598c9c14b2d290837c60424323e53
SHA-256: c75ad104a02bd12936fe3788767e5d0063b905b409421632daac280389784290
gnutls-devel-1.4.1-16.el5_10.ppc64.rpm     MD5: 8e50f6eece160ee64dbb505f221777c6
SHA-256: ca2c3d9c83104525e7757abb9050187badecbe084fb33c566ce7edc6144b6647
gnutls-utils-1.4.1-16.el5_10.ppc.rpm     MD5: e89f365ac8ec76de323868bf32fd1609
SHA-256: d41b5a4fb18aba2ac94d38d11b008173c9bccea3946da7c3926a2ff609f6f53f
 
s390x:
gnutls-1.4.1-16.el5_10.s390.rpm     MD5: 4477287c53b9d765d600688421a80ccd
SHA-256: c9a501cfec6c13b1cd1647c85a41738c7257f7b4ed5870dc29efeb10da489712
gnutls-1.4.1-16.el5_10.s390x.rpm     MD5: 60838066b52e1b179f832ddb1aca6824
SHA-256: aded7f067dbe233671eb9db41543a0eb7b6b11180d1ee50d5aef031f3915f7c4
gnutls-debuginfo-1.4.1-16.el5_10.s390.rpm     MD5: 70c1bd0352362cb0cdf93cc87eb0e883
SHA-256: 59d7332743871907c179d5d15b34d5a3ddc22fc4512b033f075a2d6bcae11b42
gnutls-debuginfo-1.4.1-16.el5_10.s390x.rpm     MD5: 29ba3efd7fd6d11120437b05093178c5
SHA-256: 96e0b9e6b4d27acb00cb4e87c6256c2d9a2bbf793ee3b212736b1f5fbc317815
gnutls-devel-1.4.1-16.el5_10.s390.rpm     MD5: 7908ab4d096e498075621fe1f1d07bd5
SHA-256: 308360d66f9e61b851b35cdc784ecc94296ca28541b3109a65af260258aa879d
gnutls-devel-1.4.1-16.el5_10.s390x.rpm     MD5: 269268f042098455a3c2cd1d8be2509c
SHA-256: aee7aee4050afd2eb3e180ccedd407c140106f11c93f514801237a2ac617062e
gnutls-utils-1.4.1-16.el5_10.s390x.rpm     MD5: 332e57b931832ad5c7d6394b753a4e43
SHA-256: 866e781b889099ca55ff52c76c54e2564f576b2cee7bab6a22d296a92a9d086c
 
x86_64:
gnutls-1.4.1-16.el5_10.i386.rpm     MD5: 599f420a8a95a10595b4c2e038b4bb30
SHA-256: fd557097d2b151a651bdc57debed14d20f93ce8e4fa8950ae0983c2a95edf833
gnutls-1.4.1-16.el5_10.x86_64.rpm     MD5: 0f3e4bc866deca4e503679fa9fbc92ba
SHA-256: 4f6d29615b6e20567a601d1cbbf4ec1e2d43dbb8fb38af22bb4119c6a5c866a1
gnutls-debuginfo-1.4.1-16.el5_10.i386.rpm     MD5: 5bc0201f80efc469ec6cb3a3909ee7d6
SHA-256: 2d397670e05f789910ce8ed7fce3eb34122f874ce045bce74991670090c2e357
gnutls-debuginfo-1.4.1-16.el5_10.x86_64.rpm     MD5: bd201c17298e8a2da6ec37d32a35475e
SHA-256: 16760c393aac3ee0f41ec274964597ac7920e7fe1fa15ca31403b70c0326f114
gnutls-devel-1.4.1-16.el5_10.i386.rpm     MD5: f4539fb890a61d119d306d37b461a6c8
SHA-256: 9fae428aa3516c29e670c6d503d5d0adac28d67bfc6f1cda39515a06923bd58e
gnutls-devel-1.4.1-16.el5_10.x86_64.rpm     MD5: 030fbe509e42011362b854c13d4415ec
SHA-256: 1b2263e49f0c7d6dfc1c811d79629fb37f89d4f9084b0ba8bfe6d61e2c19e8b8
gnutls-utils-1.4.1-16.el5_10.x86_64.rpm     MD5: 7b1a09957c03d913ae3cb22fbebd2ac1
SHA-256: 28a9e843e61032727636074ff3486a87780f625d1880c4b1aa2eeb4d0cf13a0b
 
Red Hat Enterprise Linux Desktop (v. 5 client)

SRPMS:
gnutls-1.4.1-16.el5_10.src.rpm     MD5: 9276ec80d47e4533a642e28491349b89
SHA-256: 7116df5683ce671aa5a3450917e0a1e01f886d7e3361d22202ceb68fa6dc1874
 
IA-32:
gnutls-1.4.1-16.el5_10.i386.rpm     MD5: 599f420a8a95a10595b4c2e038b4bb30
SHA-256: fd557097d2b151a651bdc57debed14d20f93ce8e4fa8950ae0983c2a95edf833
gnutls-debuginfo-1.4.1-16.el5_10.i386.rpm     MD5: 5bc0201f80efc469ec6cb3a3909ee7d6
SHA-256: 2d397670e05f789910ce8ed7fce3eb34122f874ce045bce74991670090c2e357
gnutls-utils-1.4.1-16.el5_10.i386.rpm     MD5: c85ad8966af21e04e81a0cfca8f285ff
SHA-256: 1821c31a23df55e604709326fbe3e199e4e5888becf338f0998052e8456eff3b
 
x86_64:
gnutls-1.4.1-16.el5_10.i386.rpm     MD5: 599f420a8a95a10595b4c2e038b4bb30
SHA-256: fd557097d2b151a651bdc57debed14d20f93ce8e4fa8950ae0983c2a95edf833
gnutls-1.4.1-16.el5_10.x86_64.rpm     MD5: 0f3e4bc866deca4e503679fa9fbc92ba
SHA-256: 4f6d29615b6e20567a601d1cbbf4ec1e2d43dbb8fb38af22bb4119c6a5c866a1
gnutls-debuginfo-1.4.1-16.el5_10.i386.rpm     MD5: 5bc0201f80efc469ec6cb3a3909ee7d6
SHA-256: 2d397670e05f789910ce8ed7fce3eb34122f874ce045bce74991670090c2e357
gnutls-debuginfo-1.4.1-16.el5_10.x86_64.rpm     MD5: bd201c17298e8a2da6ec37d32a35475e
SHA-256: 16760c393aac3ee0f41ec274964597ac7920e7fe1fa15ca31403b70c0326f114
gnutls-utils-1.4.1-16.el5_10.x86_64.rpm     MD5: 7b1a09957c03d913ae3cb22fbebd2ac1
SHA-256: 28a9e843e61032727636074ff3486a87780f625d1880c4b1aa2eeb4d0cf13a0b
 
(The unlinked packages above are only available from the Red Hat Network)

Bugs fixed (see bugzilla for more information)

1101932 - CVE-2014-3466 gnutls: insufficient session id length check in _gnutls_read_server_hello (GNUTLS-SA-2014-3)
1102022 - CVE-2014-3467 libtasn1: multiple boundary check issues
1102323 - CVE-2014-3468 libtasn1: asn1_get_bit_der() can return negative bit length
1102329 - CVE-2014-3469 libtasn1: asn1_read_value_type() NULL pointer dereference


References



These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from:
https://www.redhat.com/security/team/key/#package

The Red Hat security contact is secalert@redhat.com. More contact details at http://www.redhat.com/security/team/contact/