RHBA-2014:1461 - Bug Fix Advisory

Topic

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

Description

The syslinux packages provide a suite of boot loaders, currently supporting DOS
FAT file systems, Linux ext2 and ext3 file systems (EXTLINUX), PXE network boots
(PXELINUX), or ISO 9660 CD-ROMs (ISOLINUX). It also includes a tool, MEMDISK,
which loads legacy operating systems from these media.

The syslinux packages have been upgraded to upstream version 4.04, which
provides a number of bug fixes over the previous version, including a patch that
corrects the PXE chain functionality. (BZ#970946)

This update also fixes the following bugs:

• The pxelinux.0 file incorrectly used a BIOS interrupt call when booting up

from a local hard drive through the Pre-Boot Execution Environment (PXE). As a
consequence, the booting process became unresponsive. With this update, the
behavior of pxelinux.0 has been fixed and PXE booting now functions as expected.
(BZ#980671, BZ#1085780)

• The syslinux-tftpboot program incorrectly installed tftp files into the

/tftpboot/ directory. Consequently, these files could not be located and used by
the appropriate programs, such as tftp. With this update, tftp files are
installed into the /var/lib/tftpboot/ directory as expected. (BZ#989867)

Users of syslinux 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/site/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 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 Extension 6 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension 6 i386

Fixes

• BZ - 989867 - syslinux-tftpboot uses old /tftpboot directory

CVEs

(none)

References

(none)