RHBA-2011:0607 - Bug Fix Advisory

Topic

An updated python-nss package that fixes one bug and adds one enhancement is now
available for Red Hat Enterprise Linux 6.

Description

The python-nss package provides bindings for Network Security Services (NSS)
that allow Python programs to use the NSS cryptographic libraries for SSL/TLS
and PKI certificate management.

This update fixes the following bug:

• Previously, certain code sequences in the CPython modules caused the object

reference count to be computed incorrectly which caused objects to be released
too soon. Due to this behavior, a Python "memory error" exception was raised.
This update adjusts the internal reference counting logic. (BZ#619743)

This update also adds the following enhancement:

• This update adds several new classes, module functions, class methods, and

properties. (BZ#670951)

All python-nss users are advised to upgrade to this updated package, which fixes
this bug and adds this enhancement.

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/kb/docs/DOC-11259/

Affected Products

• Red Hat Enterprise Linux Server 6 x86_64
• Red Hat Enterprise Linux Server 6 i386
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 x86_64
• Red Hat Enterprise Linux Workstation 6 x86_64
• Red Hat Enterprise Linux Workstation 6 i386
• Red Hat Enterprise Linux Desktop 6 x86_64
• Red Hat Enterprise Linux Desktop 6 i386
• Red Hat Enterprise Linux for IBM z Systems 6 s390x
• Red Hat Enterprise Linux for Power, big endian 6 ppc64
• Red Hat Enterprise Linux Server from RHUI 6 x86_64
• Red Hat Enterprise Linux Server from RHUI 6 i386
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 i386
• Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems) 6 s390x
• Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension 6 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension 6 i386
• Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension (for IBM z Systems) 6 s390x

Fixes

• BZ - 619743 - ssl_example.py fails with MemoryError on ppc64 and s390x
• BZ - 674014 - /usr/share/doc/python-nss-0.10/test/setup_certs.py uses invalid module mypty
• BZ - 689807 - examples & doc do not set inet family when creating Socket or SSLSocket, will cause failures with ipv6

CVEs

(none)

References

(none)