RHBA-2014:1548 - Bug Fix Advisory

Topic

Updated mod_nss packages that fix several bugs are now available for Red Hat
Enterprise Linux 6.

Description

The mod_nss module provides strong cryptography for the Apache HTTP Server via
the Secure Sockets Layer (SSL) and Transport Layer Security (TLS) protocols,
using the Network Security Services (NSS) security library.

This update fixes the following bugs:

• Previously, the nss_var_lookup_nss_cert_PEM() function from the

nss_engine_vars.c file occasionally caused a memory error. This bug has been
fixed and the memory error no longer occurs. (BZ#866703)

• Due to a bug in the nss-softokn package that is a dependency of the mod_nss

package, the root process of the httpd daemon was occasionally terminated by a
SIGTRAP signal. With this update, mod_nss has been updated to depend on a
corrected version of nss-softokn and the root httpd process is no longer
terminated by SIGTRAP. (BZ#1002733)

• Due to a bug in the nss-softokn package that is a dependency of the mod_nss

package, the httpd daemon sometimes terminated unexpectedly with a segmentation
fault and the following message was returned:

NSS_Initialize failed. Certificate database: /etc/httpd/alias

With this update, mod_nss has been updated to depend on a corrected version of
nss-softokn and httpd no longer crashes in the described case. (BZ#1016628)

Users of mod_nss are advised to upgrade to these updated packages, which fix
these bugs. The httpd service must be restarted for this update to take effect.

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/articles/11258

Affected Products

• Red Hat Enterprise Linux Server 6 x86_64
• Red Hat Enterprise Linux Server 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 for Scientific Computing 6 x86_64
• 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 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 i386
• Red Hat Enterprise Linux Workstation 6 x86_64
• Red Hat Enterprise Linux Workstation 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

CVEs

(none)

References

(none)