Issued:

2015-07-22

Updated:

2015-07-22

RHBA-2015:1358 - libxcb and libX11 bug fix update

Synopsis

libxcb and libX11 bug fix update

Type/Severity

Bug Fix Advisory

Topic

Updated libxcb and libX11 packages that fix several bugs are now available for Red Hat Enterprise Linux 6.

Description

The libxcb packages provide the X protocol C-language Binding (XCB) library. XCB is a replacement for Xlib featuring a small footprint, latency hiding, direct access to the protocol, improved threading support, and extensibility. The libX11 packages contain the core X11 protocol client library.

This update fixes the following bugs:

• Previously, the "mute microphone" key in some cases did not work when using Red Hat Enterprise Linux 6. With this update, libX11 properly resolves the key symbol assigned to the "mute microphone" key by the xkeyboard-config keyboard layout files, and the "mute microphone" key now works as expected. (BZ#667789)

• On 32-bit architectures, an X11 protocol client was under certain circumstances disconnected after processing a large number of X11 requests. With this update, the libxcb library exposes the request sequence number as a 64-bit integer so that libX11 can make use of 64-bit sequence number even on 32-bit systems. As a result, the described failure of the X11 client no longer occurs. (BZ#1206240, BZ#1046410, BZ#1164296)

Users of libxcb and libX11 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

Updated Packages

• libX11-common-1.6.0-6.el6.noarch.rpm
• libxcb-python-1.9.1-3.el6.ppc64.rpm
• libX11-devel-1.6.0-6.el6.ppc64.rpm
• libX11-debuginfo-1.6.0-6.el6.i686.rpm
• libxcb-python-1.9.1-3.el6.i686.rpm
• libX11-1.6.0-6.el6.x86_64.rpm
• libX11-devel-1.6.0-6.el6.i686.rpm
• libxcb-1.9.1-3.el6.ppc64.rpm
• libxcb-debuginfo-1.9.1-3.el6.ppc.rpm
• libX11-1.6.0-6.el6.i686.rpm
• libX11-1.6.0-6.el6.src.rpm
• libxcb-devel-1.9.1-3.el6.ppc.rpm
• libxcb-python-1.9.1-3.el6.s390x.rpm
• libxcb-devel-1.9.1-3.el6.ppc64.rpm
• libX11-debuginfo-1.6.0-6.el6.x86_64.rpm
• libxcb-devel-1.9.1-3.el6.x86_64.rpm
• libX11-debuginfo-1.6.0-6.el6.s390x.rpm
• libX11-debuginfo-1.6.0-6.el6.s390.rpm
• libxcb-1.9.1-3.el6.s390.rpm
• libX11-1.6.0-6.el6.s390x.rpm
• libxcb-doc-1.9.1-3.el6.noarch.rpm
• libX11-1.6.0-6.el6.ppc.rpm
• libxcb-devel-1.9.1-3.el6.s390.rpm
• libxcb-debuginfo-1.9.1-3.el6.s390.rpm
• libX11-1.6.0-6.el6.ppc64.rpm
• libX11-devel-1.6.0-6.el6.ppc.rpm
• libxcb-python-1.9.1-3.el6.x86_64.rpm
• libX11-devel-1.6.0-6.el6.x86_64.rpm
• libxcb-devel-1.9.1-3.el6.s390x.rpm
• libX11-1.6.0-6.el6.s390.rpm
• libX11-debuginfo-1.6.0-6.el6.ppc.rpm
• libxcb-debuginfo-1.9.1-3.el6.ppc64.rpm
• libxcb-debuginfo-1.9.1-3.el6.x86_64.rpm
• libxcb-1.9.1-3.el6.x86_64.rpm
• libxcb-debuginfo-1.9.1-3.el6.i686.rpm
• libX11-debuginfo-1.6.0-6.el6.ppc64.rpm
• libxcb-1.9.1-3.el6.s390x.rpm
• libX11-devel-1.6.0-6.el6.s390x.rpm
• libxcb-1.9.1-3.el6.ppc.rpm
• libxcb-devel-1.9.1-3.el6.i686.rpm
• libxcb-1.9.1-3.el6.src.rpm
• libxcb-1.9.1-3.el6.i686.rpm
• libX11-devel-1.6.0-6.el6.s390.rpm
• libxcb-debuginfo-1.9.1-3.el6.s390x.rpm

Fixes

• This content is not included.BZ - 1046410
• This content is not included.BZ - 1164296

CVEs

(none)

References

(none)

Additional information

• The Red Hat security contact is This content is not included.secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.
• Offline Security Data data is available for integration with other systems. See Offline Security Data API to get started.