Synopsis

Important: gnutls security update

Type/Severity

Security Advisory: Important

Topic

Updated gnutls packages that fix several security issues are now available
for Red Hat Enterprise Linux 4.

This update has been rated as having important security impact by the Red
Hat Security Response Team.

Description

The GnuTLS Library provides support for cryptographic algorithms and
protocols such as TLS. GnuTLS includes libtasn1, a library developed for
ASN.1 structures management that includes DER encoding and decoding.

Flaws were found in the way GnuTLS handles malicious client connections. A
malicious remote client could send a specially crafted request to a service
using GnuTLS that could cause the service to crash. (CVE-2008-1948,
CVE-2008-1949, CVE-2008-1950)

We believe it is possible to leverage the flaw CVE-2008-1948 to execute
arbitrary code but have been unable to prove this at the time of releasing
this advisory. Red Hat Enterprise Linux 4 does not ship with any
applications directly affected by this flaw. Third-party software which
runs on Red Hat Enterprise Linux 4 could, however, be affected by this
vulnerability. Consequently, we have assigned it important severity.

Users of GnuTLS are advised to upgrade to these updated packages, which
contain a backported patch that corrects these issues.

Solution

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

This update is available via Red Hat Network. Details on how to use
the Red Hat Network to apply this update are available at
http://kbase.redhat.com/faq/FAQ_58_10188

Affected Products

• Red Hat Enterprise Linux Server 4 x86_64
• Red Hat Enterprise Linux Server 4 ia64
• Red Hat Enterprise Linux Server 4 i386
• Red Hat Enterprise Linux Server - Extended Update Support 4.6 x86_64
• Red Hat Enterprise Linux Server - Extended Update Support 4.6 ia64
• Red Hat Enterprise Linux Server - Extended Update Support 4.6 i386
• Red Hat Enterprise Linux Workstation 4 x86_64
• Red Hat Enterprise Linux Workstation 4 ia64
• Red Hat Enterprise Linux Workstation 4 i386
• Red Hat Enterprise Linux Desktop 4 x86_64
• Red Hat Enterprise Linux Desktop 4 i386
• Red Hat Enterprise Linux for IBM z Systems 4 s390x
• Red Hat Enterprise Linux for IBM z Systems 4 s390
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 4.6 s390x
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 4.6 s390
• Red Hat Enterprise Linux for Power, big endian 4 ppc
• Red Hat Enterprise Linux for Power, big endian - Extended Update Support 4.6 ppc

Fixes

• BZ - 447461 - CVE-2008-1948 GNUTLS-SA-2008-1-1 GnuTLS buffer overflow
• BZ - 447462 - CVE-2008-1949 GNUTLS-SA-2008-1-2 GnuTLS null-pointer dereference
• BZ - 447463 - CVE-2008-1950 GNUTLS-SA-2008-1-3 GnuTLS memory overread flaw

CVEs

• CVE-2008-1949
• CVE-2008-1948
• CVE-2008-1950

References

• http://www.redhat.com/security/updates/classification/#important

Red Hat Enterprise Linux Server 4

SRPM
gnutls-1.0.20-4.el4_6.src.rpm	SHA-256: 4f066c2750a68ffecacd2ac24de6738a7aa32f5321dd3c63022e9dd8450494ad
x86_64
gnutls-1.0.20-4.el4_6.i386.rpm	SHA-256: 128e3f184282d40534d1016f4038880b29e258f3a0835eb8ef3104156caf0177
gnutls-1.0.20-4.el4_6.i386.rpm	SHA-256: 128e3f184282d40534d1016f4038880b29e258f3a0835eb8ef3104156caf0177
gnutls-1.0.20-4.el4_6.x86_64.rpm	SHA-256: d9d31abb7fb8775dcc2a07c65fe27b75e17e6da93a0a71fac38d5eb6a3416e9f
gnutls-1.0.20-4.el4_6.x86_64.rpm	SHA-256: d9d31abb7fb8775dcc2a07c65fe27b75e17e6da93a0a71fac38d5eb6a3416e9f
gnutls-devel-1.0.20-4.el4_6.x86_64.rpm	SHA-256: d8948d8cd8c56bc3bb6e7c66e512efde866915437f2d37db3aa24c83306ea9ea
gnutls-devel-1.0.20-4.el4_6.x86_64.rpm	SHA-256: d8948d8cd8c56bc3bb6e7c66e512efde866915437f2d37db3aa24c83306ea9ea
ia64
gnutls-1.0.20-4.el4_6.i386.rpm	SHA-256: 128e3f184282d40534d1016f4038880b29e258f3a0835eb8ef3104156caf0177
gnutls-1.0.20-4.el4_6.i386.rpm	SHA-256: 128e3f184282d40534d1016f4038880b29e258f3a0835eb8ef3104156caf0177
gnutls-1.0.20-4.el4_6.ia64.rpm	SHA-256: 2033ea24a3aca2420d0bfe9f44e8d71131c637f253f3dd6c929d416f153c9936
gnutls-1.0.20-4.el4_6.ia64.rpm	SHA-256: 2033ea24a3aca2420d0bfe9f44e8d71131c637f253f3dd6c929d416f153c9936
gnutls-devel-1.0.20-4.el4_6.ia64.rpm	SHA-256: a0f2962c892dc4967433930b0a8b27e76609819abb314eb0a2a6f7d5e78e3d0a
gnutls-devel-1.0.20-4.el4_6.ia64.rpm	SHA-256: a0f2962c892dc4967433930b0a8b27e76609819abb314eb0a2a6f7d5e78e3d0a
i386
gnutls-1.0.20-4.el4_6.i386.rpm	SHA-256: 128e3f184282d40534d1016f4038880b29e258f3a0835eb8ef3104156caf0177
gnutls-1.0.20-4.el4_6.i386.rpm	SHA-256: 128e3f184282d40534d1016f4038880b29e258f3a0835eb8ef3104156caf0177
gnutls-devel-1.0.20-4.el4_6.i386.rpm	SHA-256: 8d106a220ed1c313cd46d5220d18aac3fa0e034cd18074994f3f124b9f46ef7a
gnutls-devel-1.0.20-4.el4_6.i386.rpm	SHA-256: 8d106a220ed1c313cd46d5220d18aac3fa0e034cd18074994f3f124b9f46ef7a

Red Hat Enterprise Linux Server - Extended Update Support 4.6

SRPM
gnutls-1.0.20-4.el4_6.src.rpm	SHA-256: 4f066c2750a68ffecacd2ac24de6738a7aa32f5321dd3c63022e9dd8450494ad
x86_64
gnutls-1.0.20-4.el4_6.i386.rpm	SHA-256: 128e3f184282d40534d1016f4038880b29e258f3a0835eb8ef3104156caf0177
gnutls-1.0.20-4.el4_6.i386.rpm	SHA-256: 128e3f184282d40534d1016f4038880b29e258f3a0835eb8ef3104156caf0177
gnutls-1.0.20-4.el4_6.x86_64.rpm	SHA-256: d9d31abb7fb8775dcc2a07c65fe27b75e17e6da93a0a71fac38d5eb6a3416e9f
gnutls-1.0.20-4.el4_6.x86_64.rpm	SHA-256: d9d31abb7fb8775dcc2a07c65fe27b75e17e6da93a0a71fac38d5eb6a3416e9f
gnutls-devel-1.0.20-4.el4_6.x86_64.rpm	SHA-256: d8948d8cd8c56bc3bb6e7c66e512efde866915437f2d37db3aa24c83306ea9ea
gnutls-devel-1.0.20-4.el4_6.x86_64.rpm	SHA-256: d8948d8cd8c56bc3bb6e7c66e512efde866915437f2d37db3aa24c83306ea9ea
ia64
gnutls-1.0.20-4.el4_6.i386.rpm	SHA-256: 128e3f184282d40534d1016f4038880b29e258f3a0835eb8ef3104156caf0177
gnutls-1.0.20-4.el4_6.i386.rpm	SHA-256: 128e3f184282d40534d1016f4038880b29e258f3a0835eb8ef3104156caf0177
gnutls-1.0.20-4.el4_6.ia64.rpm	SHA-256: 2033ea24a3aca2420d0bfe9f44e8d71131c637f253f3dd6c929d416f153c9936
gnutls-1.0.20-4.el4_6.ia64.rpm	SHA-256: 2033ea24a3aca2420d0bfe9f44e8d71131c637f253f3dd6c929d416f153c9936
gnutls-devel-1.0.20-4.el4_6.ia64.rpm	SHA-256: a0f2962c892dc4967433930b0a8b27e76609819abb314eb0a2a6f7d5e78e3d0a
gnutls-devel-1.0.20-4.el4_6.ia64.rpm	SHA-256: a0f2962c892dc4967433930b0a8b27e76609819abb314eb0a2a6f7d5e78e3d0a
i386
gnutls-1.0.20-4.el4_6.i386.rpm	SHA-256: 128e3f184282d40534d1016f4038880b29e258f3a0835eb8ef3104156caf0177
gnutls-1.0.20-4.el4_6.i386.rpm	SHA-256: 128e3f184282d40534d1016f4038880b29e258f3a0835eb8ef3104156caf0177
gnutls-devel-1.0.20-4.el4_6.i386.rpm	SHA-256: 8d106a220ed1c313cd46d5220d18aac3fa0e034cd18074994f3f124b9f46ef7a
gnutls-devel-1.0.20-4.el4_6.i386.rpm	SHA-256: 8d106a220ed1c313cd46d5220d18aac3fa0e034cd18074994f3f124b9f46ef7a

Red Hat Enterprise Linux Workstation 4

SRPM
gnutls-1.0.20-4.el4_6.src.rpm	SHA-256: 4f066c2750a68ffecacd2ac24de6738a7aa32f5321dd3c63022e9dd8450494ad
x86_64
gnutls-1.0.20-4.el4_6.i386.rpm	SHA-256: 128e3f184282d40534d1016f4038880b29e258f3a0835eb8ef3104156caf0177
gnutls-1.0.20-4.el4_6.x86_64.rpm	SHA-256: d9d31abb7fb8775dcc2a07c65fe27b75e17e6da93a0a71fac38d5eb6a3416e9f
gnutls-devel-1.0.20-4.el4_6.x86_64.rpm	SHA-256: d8948d8cd8c56bc3bb6e7c66e512efde866915437f2d37db3aa24c83306ea9ea
ia64
gnutls-1.0.20-4.el4_6.i386.rpm	SHA-256: 128e3f184282d40534d1016f4038880b29e258f3a0835eb8ef3104156caf0177
gnutls-1.0.20-4.el4_6.ia64.rpm	SHA-256: 2033ea24a3aca2420d0bfe9f44e8d71131c637f253f3dd6c929d416f153c9936
gnutls-devel-1.0.20-4.el4_6.ia64.rpm	SHA-256: a0f2962c892dc4967433930b0a8b27e76609819abb314eb0a2a6f7d5e78e3d0a
i386
gnutls-1.0.20-4.el4_6.i386.rpm	SHA-256: 128e3f184282d40534d1016f4038880b29e258f3a0835eb8ef3104156caf0177
gnutls-devel-1.0.20-4.el4_6.i386.rpm	SHA-256: 8d106a220ed1c313cd46d5220d18aac3fa0e034cd18074994f3f124b9f46ef7a

Red Hat Enterprise Linux Desktop 4

SRPM
gnutls-1.0.20-4.el4_6.src.rpm	SHA-256: 4f066c2750a68ffecacd2ac24de6738a7aa32f5321dd3c63022e9dd8450494ad
x86_64
gnutls-1.0.20-4.el4_6.i386.rpm	SHA-256: 128e3f184282d40534d1016f4038880b29e258f3a0835eb8ef3104156caf0177
gnutls-1.0.20-4.el4_6.x86_64.rpm	SHA-256: d9d31abb7fb8775dcc2a07c65fe27b75e17e6da93a0a71fac38d5eb6a3416e9f
gnutls-devel-1.0.20-4.el4_6.x86_64.rpm	SHA-256: d8948d8cd8c56bc3bb6e7c66e512efde866915437f2d37db3aa24c83306ea9ea
i386
gnutls-1.0.20-4.el4_6.i386.rpm	SHA-256: 128e3f184282d40534d1016f4038880b29e258f3a0835eb8ef3104156caf0177
gnutls-devel-1.0.20-4.el4_6.i386.rpm	SHA-256: 8d106a220ed1c313cd46d5220d18aac3fa0e034cd18074994f3f124b9f46ef7a

Red Hat Enterprise Linux for IBM z Systems 4

SRPM
gnutls-1.0.20-4.el4_6.src.rpm	SHA-256: 4f066c2750a68ffecacd2ac24de6738a7aa32f5321dd3c63022e9dd8450494ad
s390x
gnutls-1.0.20-4.el4_6.s390.rpm	SHA-256: ce938ab73067c468dc12b44739cd5709bfcb48e921d9f2a6057c8318091c6dda
gnutls-1.0.20-4.el4_6.s390x.rpm	SHA-256: 54c656909ac3cdc400ca75b7d67dec76e0e5a13ea2fa208aceda41837d7133f9
gnutls-devel-1.0.20-4.el4_6.s390x.rpm	SHA-256: 8b490e4f2dfde020aadc6280d554ecb301bf3f2af1bc26163cdace1048f996cc
s390
gnutls-1.0.20-4.el4_6.s390.rpm	SHA-256: ce938ab73067c468dc12b44739cd5709bfcb48e921d9f2a6057c8318091c6dda
gnutls-devel-1.0.20-4.el4_6.s390.rpm	SHA-256: adfb5a16def072f700c86c68010b7552021da926cb49a1aa50cd857df334c4c1

Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 4.6

SRPM
gnutls-1.0.20-4.el4_6.src.rpm	SHA-256: 4f066c2750a68ffecacd2ac24de6738a7aa32f5321dd3c63022e9dd8450494ad
s390x
gnutls-1.0.20-4.el4_6.s390.rpm	SHA-256: ce938ab73067c468dc12b44739cd5709bfcb48e921d9f2a6057c8318091c6dda
gnutls-1.0.20-4.el4_6.s390x.rpm	SHA-256: 54c656909ac3cdc400ca75b7d67dec76e0e5a13ea2fa208aceda41837d7133f9
gnutls-devel-1.0.20-4.el4_6.s390x.rpm	SHA-256: 8b490e4f2dfde020aadc6280d554ecb301bf3f2af1bc26163cdace1048f996cc
s390
gnutls-1.0.20-4.el4_6.s390.rpm	SHA-256: ce938ab73067c468dc12b44739cd5709bfcb48e921d9f2a6057c8318091c6dda
gnutls-devel-1.0.20-4.el4_6.s390.rpm	SHA-256: adfb5a16def072f700c86c68010b7552021da926cb49a1aa50cd857df334c4c1

Red Hat Enterprise Linux for Power, big endian 4

SRPM
gnutls-1.0.20-4.el4_6.src.rpm	SHA-256: 4f066c2750a68ffecacd2ac24de6738a7aa32f5321dd3c63022e9dd8450494ad
ppc
gnutls-1.0.20-4.el4_6.ppc.rpm	SHA-256: bf6f960537de842fd61d4dd4b4ec2c2cc89709bede94c88ce85146288c8c934c
gnutls-1.0.20-4.el4_6.ppc64.rpm	SHA-256: 89315d8f11c45724b1a5d32a8754f4d10286e6541714b87b97eeb5c7ad19c461
gnutls-devel-1.0.20-4.el4_6.ppc.rpm	SHA-256: bef73ac44a1088ecb822e73858742a7f7f90a13fcf7b125afe27b2e6910a3c06

Red Hat Enterprise Linux for Power, big endian - Extended Update Support 4.6

SRPM
gnutls-1.0.20-4.el4_6.src.rpm	SHA-256: 4f066c2750a68ffecacd2ac24de6738a7aa32f5321dd3c63022e9dd8450494ad
ppc
gnutls-1.0.20-4.el4_6.ppc.rpm	SHA-256: bf6f960537de842fd61d4dd4b4ec2c2cc89709bede94c88ce85146288c8c934c
gnutls-1.0.20-4.el4_6.ppc64.rpm	SHA-256: 89315d8f11c45724b1a5d32a8754f4d10286e6541714b87b97eeb5c7ad19c461
gnutls-devel-1.0.20-4.el4_6.ppc.rpm	SHA-256: bef73ac44a1088ecb822e73858742a7f7f90a13fcf7b125afe27b2e6910a3c06