Issued:
2013-01-07
Updated:
2013-01-07

RHBA-2013:0028 - gnutls bug fix update

Synopsis

gnutls bug fix update

Type/Severity

Bug Fix Advisory (none)

Topic

Updated gnutls packages that fix three bugs are now available for Red Hat Enterprise Linux 5.

Description

The gnutls packages provides the GNU Transport Layer Security (GnuTLS) library, which provides a secure layer over a transport layer using protocols such as TLS, SSL, and DTLS.

This update fixes the following bugs:

  • The gnutls packages reported wrong distinguished names (DNs) for chain CA certificates used for the client authentication; the issuer DN was reported instead of the subject DN. As a consequence, the TLS clients were not able to provide a client certificate signed by a chain CA certificate when connecting to a gnutls TLS server. The underlying source code has been modified and gnutls now reports the right DN and the TLS clients work as expected in the described scenario. (BZ#592112)

  • Previously, in the certool utility was a missing check used for an empty string when a challenge password was entered. Consequently, certificate requests generated by certtool were sometimes invalid when an empty challenge password was used. This missing empty-string check has been added and now the certtool's certificate requests are valid even if the challenge password is not entered. (BZ#730816)

  • Under certain circumstances, a null pointer could be dereferenced in the GnuTLS library. This caused TLS clients, such as the rsyslog utility, to terminate unexpectedly with a segmentation fault. This update adds a test condition ensuring that null pointers can no longer be dereferenced and TLS clients no longer crash. (BZ#785001)

All users of gnutls are advised to upgrade to these updated packages, which fix these bugs.

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/knowledge/articles/11258

Affected Products

ProductVersionArch
Red Hat Enterprise Linux for Power, big endian5ppc
Red Hat Enterprise Linux for IBM z Systems5s390x
Red Hat Enterprise Linux Workstation5x86_64
Red Hat Enterprise Linux Workstation5i386
Red Hat Enterprise Linux Server5x86_64
Red Hat Enterprise Linux Server5ia64
Red Hat Enterprise Linux Server5i386
Red Hat Enterprise Linux Server from RHUI5x86_64
Red Hat Enterprise Linux Server from RHUI5i386
Red Hat Enterprise Linux Desktop5x86_64
Red Hat Enterprise Linux Desktop5i386

Updated Packages

  • gnutls-debuginfo-1.4.1-10.el5.ppc.rpm
  • gnutls-1.4.1-10.el5.x86_64.rpm
  • gnutls-utils-1.4.1-10.el5.x86_64.rpm
  • gnutls-utils-1.4.1-10.el5.i386.rpm
  • gnutls-debuginfo-1.4.1-10.el5.s390x.rpm
  • gnutls-1.4.1-10.el5.ppc.rpm
  • gnutls-debuginfo-1.4.1-10.el5.s390.rpm
  • gnutls-1.4.1-10.el5.ppc64.rpm
  • gnutls-debuginfo-1.4.1-10.el5.ia64.rpm
  • gnutls-devel-1.4.1-10.el5.x86_64.rpm
  • gnutls-debuginfo-1.4.1-10.el5.i386.rpm
  • gnutls-debuginfo-1.4.1-10.el5.ppc64.rpm
  • gnutls-devel-1.4.1-10.el5.ppc64.rpm
  • gnutls-devel-1.4.1-10.el5.s390.rpm
  • gnutls-1.4.1-10.el5.i386.rpm
  • gnutls-devel-1.4.1-10.el5.ppc.rpm
  • gnutls-utils-1.4.1-10.el5.ppc.rpm
  • gnutls-devel-1.4.1-10.el5.s390x.rpm
  • gnutls-utils-1.4.1-10.el5.s390x.rpm
  • gnutls-1.4.1-10.el5.s390x.rpm
  • gnutls-devel-1.4.1-10.el5.i386.rpm
  • gnutls-1.4.1-10.el5.ia64.rpm
  • gnutls-debuginfo-1.4.1-10.el5.x86_64.rpm
  • gnutls-1.4.1-10.el5.s390.rpm
  • gnutls-devel-1.4.1-10.el5.ia64.rpm
  • gnutls-1.4.1-10.el5.src.rpm
  • gnutls-utils-1.4.1-10.el5.ia64.rpm

Fixes

(none)

CVEs

(none)

References

(none)

Additional information