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Red Hat: RHSA-2009:1232 Moderate GnuTLS Man-In-The-Middle Risk

red hat
Calendar Grey August 26, 2009
Dist Redhat Esm H88
Oracle unveils libcurl patch update ORCL-2023:4567-89 tackling high vulnerability. Make sure your systems are fully patched.
Updated gnutls packages that fix a security issue are now available for Red Hat Enterprise Linux 4 and 5. This update has been rated as having moderate security impact by the Red ...

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

Summary

The GnuTLS library provides support for cryptographic algorithms and for protocols such as Transport Layer Security (TLS).
A flaw was discovered in the way GnuTLS handles NULL characters in certain fields of X.509 certificates. If an attacker is able to get a carefully-crafted certificate signed by a Certificate Authority trusted by an application using GnuTLS, the attacker could use the certificate during a man-in-the-middle attack and potentially confuse the application into accepting it by mistake. (CVE-2009-2730)
Users of GnuTLS are advised to upgrade to these updated packages, which contain a backported patch that corrects this issue.

Topics%20covered

Topics Covered

security advisory moderate security issue Red Hat software update man-in-the-middle gnutls

References

https://www.cve.org/CVERecord?id=CVE-2009-2730 https://access.redhat.com/security/updates/classification#moderate

Package List

Red Hat Enterprise Linux AS version 4:
Source:
i386: gnutls-1.0.20-4.el4_8.3.i386.rpm gnutls-debuginfo-1.0.20-4.el4_8.3.i386.rpm gnutls-devel-1.0.20-4.el4_8.3.i386.rpm
ia64: gnutls-1.0.20-4.el4_8.3.i386.rpm gnutls-1.0.20-4.el4_8.3.ia64.rpm gnutls-debuginfo-1.0.20-4.el4_8.3.i386.rpm gnutls-debuginfo-1.0.20-4.el4_8.3.ia64.rpm gnutls-devel-1.0.20-4.el4_8.3.ia64.rpm
ppc: gnutls-1.0.20-4.el4_8.3.ppc.rpm gnutls-1.0.20-4.el4_8.3.ppc64.rpm gnutls-debuginfo-1.0.20-4.el4_8.3.ppc.rpm gnutls-debuginfo-1.0.20-4.el4_8.3.ppc64.rpm gnutls-devel-1.0.20-4.el4_8.3.ppc.rpm
s390: gnutls-1.0.20-4.el4_8.3.s390.rpm gnutls-debuginfo-1.0.20-4.el4_8.3.s390.rpm gnutls-devel-1.0.20-4.el4_8.3.s390.rpm
s390x: gnutls-1.0.20-4.el4_8.3.s390.rpm gnutls-1.0.20-4.el4_8.3.s390x.rpm gnutls-debuginfo-1.0.20-4.el4_8.3.s390.rpm gnutls-debuginfo-1.0.20-4.el4_8.3.s390x.rpm gnutls-devel-1.0.20-4.el4_8.3.s390x.rpm
x86_64: gnutls-1.0.20-4.el4_8.3.i386.rpm gnutls-1.0.20-4.el4_8.3.x86_64.rpm gnutls-debuginfo-1.0.20-4.el4_8.3.i386.rpm gnutls-debuginfo-1.0.20-4.el4_8.3.x86_64.rpm gnutls-devel-1.0.20-4.el4_8.3.x86_64.rpm
Red Hat Enterprise Linux Desktop version 4:
Source:
i386: gnutls-1.0.20-4.el4_8.3.i386.rpm gnutls-debuginfo-1.0.20-4.el4_8.3.i386.rpm gnutls-devel-1.0.20-4.el4_8.3.i386.rpm
x86_64:

Read the Full Advisory


Advisory ID: RHSA-2009:1232-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2009:1232.html
Issue date: 2009-08-26

Topic

Updated gnutls packages that fix a security issue are now available for RedHat Enterprise Linux 4 and 5.This update has been rated as having moderate security impact by the RedHat Security Response Team.

Topics%20covered

Topics Covered

security advisory moderate security issue Red Hat software update man-in-the-middle gnutls

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

Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64

RHEL Desktop Workstation (v. 5 client) - i386, x86_64

Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64

Bugs Fixed

516231 - CVE-2009-2730 gnutls: incorrect verification of SSL certificate with NUL in name (GNUTLS-SA-2009-4)

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