RHBA-2015:1369 - Bug Fix Advisory

Topic

Updated pcsc-lite packages that fix two bugs are now available for Red Hat
Enterprise Linux 6.

Description

PC/SC Lite provides a Windows SCard compatible interface for communicating with
smart cards, smart card readers, and other security tokens.

This update fixes the following bugs:

• Previously, after a card reader went offline when the user entered the

settings menu, the pcsc-lite client could under certain circumstances enter a
deadlock state and never recover from it. The underlying source code has been
modified so that the client does not wait for an unreleased mutex. As a result,
the client does not enter a deadlock state in the described situation, and the
reader is accessible again after it returns online. (BZ#956530)

• On systems with the pcsc-lite-openct package uninstalled, if the pcscd service

terminated unexpectedly or was killed, restarting or stopping and starting pcscd
failed. This update modifies pcscd to remove the pcscd.comm and pcscd.pub files
after pcscd terminates unexpectedly or is killed. As a result, pcscd can be
restarted or stopped and started again as expected in the described situation.
(BZ#1171118)

Users of pcsc-lite 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.

For details on how to apply this update, refer to:

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 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 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 (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 - 956530 - pcsc-lite deadlocks due to unreleased mutex
• BZ - 1171118 - pcscd.comm and pcscd.pub are not removed on service-shutdown or -restart, restart fails due to this

CVEs

(none)

References

(none)