RHBA-2015:0685 - Bug Fix Advisory

Topic

Updated ppp packages that fix several bugs and add one enhancement are now
available for Red Hat Enterprise Linux 6.

Description

The ppp packages contain the Point-to-Point Protocol (PPP) daemon and
documentation for PPP support. The PPP protocol provides a method for
transmitting datagrams over serial point-to-point links. PPP is
usually used to dial in to an Internet Service Provider (ISP) or other
organization over a modem and phone line.

This update fixes the following bugs:

• Previously, when the radius client configuration file contained an option not

recognized by the PPP radius plug-in, an error was reported. To fix this bug,
the parser for the configuration file has been amended to skip unrecognized
options. Now, unknown options are skipped without reporting errors. (BZ#906912)

• Prior to this update, the ppp package incorrectly required the logrotate

package. Consequently, the logrotate package could not be easily uninstalled. To
fix this bug, the hard dependency on the logrotate package has been removed, and
it is now possible to easily uninstall the logrotate package. (BZ#922769)

• Previously, the Point-to-Point Protocol daemon (PPPD) terminated unexpectedly

when the pppol2tp plug-in was used, and the PPPD command line contained a dump
option. To fix this bug, the initialization of the variable containing textual
representation of the file descriptor passed to the pppol2tp plug-in has been
corrected. Now, the variable initializes properly, and PPPD no longer crashes in
this scenario. (BZ#1197792)

In addition, this update adds the following enhancement:

• The ppp package now includes two new plug-ins (pppol2tp.so and openl2tp.so)

that allow the use of kernel mode l2tp in dependent packages. As a result, it is
now possible to leverage in-kernel pppo-l2tp protocol implementation by xl2tpd
and openl2tpd. (BZ#815128)

Users of ppp are advised to upgrade to these updated packages, which fix these
bugs and add 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/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 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 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 - 906912 - ppp radius plugin breaks on new keywords in radius config file
• BZ - 922769 - The ppp package requires logrotate
• BZ - 968398 - SELinux is preventing /usr/sbin/pppd from 'read, write' accesses on the file pppd2.tdb
• BZ - 1197792 - pppd segfaults with dump option

CVEs

(none)

References

(none)