RedHat: Important: gnutls security update RHSA-2008:0492-01
Summary
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.
Summary
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
References
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1948 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1949 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1950 http://www.redhat.com/security/updates/classification/#important
Package List
Red Hat Enterprise Linux AS version 4:
Source:
i386:
gnutls-1.0.20-4.el4_6.i386.rpm
gnutls-debuginfo-1.0.20-4.el4_6.i386.rpm
gnutls-devel-1.0.20-4.el4_6.i386.rpm
ia64:
gnutls-1.0.20-4.el4_6.i386.rpm
gnutls-1.0.20-4.el4_6.ia64.rpm
gnutls-debuginfo-1.0.20-4.el4_6.i386.rpm
gnutls-debuginfo-1.0.20-4.el4_6.ia64.rpm
gnutls-devel-1.0.20-4.el4_6.ia64.rpm
ppc:
gnutls-1.0.20-4.el4_6.ppc.rpm
gnutls-1.0.20-4.el4_6.ppc64.rpm
gnutls-debuginfo-1.0.20-4.el4_6.ppc.rpm
gnutls-debuginfo-1.0.20-4.el4_6.ppc64.rpm
gnutls-devel-1.0.20-4.el4_6.ppc.rpm
s390:
gnutls-1.0.20-4.el4_6.s390.rpm
gnutls-debuginfo-1.0.20-4.el4_6.s390.rpm
gnutls-devel-1.0.20-4.el4_6.s390.rpm
s390x:
gnutls-1.0.20-4.el4_6.s390.rpm
gnutls-1.0.20-4.el4_6.s390x.rpm
gnutls-debuginfo-1.0.20-4.el4_6.s390.rpm
gnutls-debuginfo-1.0.20-4.el4_6.s390x.rpm
gnutls-devel-1.0.20-4.el4_6.s390x.rpm
x86_64:
gnutls-1.0.20-4.el4_6.i386.rpm
gnutls-1.0.20-4.el4_6.x86_64.rpm
gnutls-debuginfo-1.0.20-4.el4_6.i386.rpm
gnutls-debuginfo-1.0.20-4.el4_6.x86_64.rpm
gnutls-devel-1.0.20-4.el4_6.x86_64.rpm
Red Hat Enterprise Linux Desktop version 4:
Source:
i386:
gnutls-1.0.20-4.el4_6.i386.rpm
gnutls-debuginfo-1.0.20-4.el4_6.i386.rpm
gnutls-devel-1.0.20-4.el4_6.i386.rpm
x86_64:
gnutls-1.0.20-4.el4_6.i386.rpm
gnutls-1.0.20-4.el4_6.x86_64.rpm
gnutls-debuginfo-1.0.20-4.el4_6.i386.rpm
gnutls-debuginfo-1.0.20-4.el4_6.x86_64.rpm
gnutls-devel-1.0.20-4.el4_6.x86_64.rpm
Red Hat Enterprise Linux ES version 4:
Source:
i386:
gnutls-1.0.20-4.el4_6.i386.rpm
gnutls-debuginfo-1.0.20-4.el4_6.i386.rpm
gnutls-devel-1.0.20-4.el4_6.i386.rpm
ia64:
gnutls-1.0.20-4.el4_6.i386.rpm
gnutls-1.0.20-4.el4_6.ia64.rpm
gnutls-debuginfo-1.0.20-4.el4_6.i386.rpm
gnutls-debuginfo-1.0.20-4.el4_6.ia64.rpm
gnutls-devel-1.0.20-4.el4_6.ia64.rpm
x86_64:
gnutls-1.0.20-4.el4_6.i386.rpm
gnutls-1.0.20-4.el4_6.x86_64.rpm
gnutls-debuginfo-1.0.20-4.el4_6.i386.rpm
gnutls-debuginfo-1.0.20-4.el4_6.x86_64.rpm
gnutls-devel-1.0.20-4.el4_6.x86_64.rpm
Red Hat Enterprise Linux WS version 4:
Source:
i386:
gnutls-1.0.20-4.el4_6.i386.rpm
gnutls-debuginfo-1.0.20-4.el4_6.i386.rpm
gnutls-devel-1.0.20-4.el4_6.i386.rpm
ia64:
gnutls-1.0.20-4.el4_6.i386.rpm
gnutls-1.0.20-4.el4_6.ia64.rpm
gnutls-debuginfo-1.0.20-4.el4_6.i386.rpm
gnutls-debuginfo-1.0.20-4.el4_6.ia64.rpm
gnutls-devel-1.0.20-4.el4_6.ia64.rpm
x86_64:
gnutls-1.0.20-4.el4_6.i386.rpm
gnutls-1.0.20-4.el4_6.x86_64.rpm
gnutls-debuginfo-1.0.20-4.el4_6.i386.rpm
gnutls-debuginfo-1.0.20-4.el4_6.x86_64.rpm
gnutls-devel-1.0.20-4.el4_6.x86_64.rpm
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
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.
Topic
Relevant Releases Architectures
Red Hat Enterprise Linux AS version 4 - i386, ia64, ppc, s390, s390x, x86_64
Red Hat Enterprise Linux Desktop version 4 - i386, x86_64
Red Hat Enterprise Linux ES version 4 - i386, ia64, x86_64
Red Hat Enterprise Linux WS version 4 - i386, ia64, x86_64
Bugs Fixed
447461 - CVE-2008-1948 GNUTLS-SA-2008-1-1 GnuTLS buffer overflow
447462 - CVE-2008-1949 GNUTLS-SA-2008-1-2 GnuTLS null-pointer dereference
447463 - CVE-2008-1950 GNUTLS-SA-2008-1-3 GnuTLS memory overread flaw