RHBA-2012:1082 - Bug Fix Advisory

Topic

Updated psacct packages that fix multiple bugs are now available for Red Hat
Enterprise Linux 6.

Description

The psacct packages contain utilities for monitoring process activities,
including ac, lastcomm, accton, dump-acct, dump-utmp and sa. The "ac" command
displays statistics about how long users have been logged on. The "lastcomm"
command displays information about previously executed commands. The "accton"
command turns process accounting on or off. The "dump-acct" command transforms
the output file from the accton format to a human-readable format. The
"dump-utmp" command prints utmp files in human-readable format. The "sa" command
summarizes information about previously executed commands.

This update fixes the following bugs:

• Previously, improper data type detection could have caused an arithmetic

overflow. As a consequence, the dump-acct tool reported incorrect elapsed time
values. A patch has been applied so that correct values are reported with this
update. (BZ#828728)

• Previously, improper data type conversion caused the dump-utmp tool to report

invalid timestamps. Consequently, mainly on the 64-bit PowerPC architecture,
dump-utmp could have terminated unexpectedly with a segmentation fault. A patch
has been applied so that correct values are reported and no crashes occur with
this update. (BZ#834217)

• Previously, accessing an incorrect and uninitialized memory structure used for

acquiring the user IDs caused the sa tool to report incorrect usernames.
Consequently, the sa tool could have terminated unexpectedly with a segmentation
fault. A patch has been applied so that correct values are reported and no
crashes occur with this update. (BZ#838998)

All users of psacct are advised to upgrade to these updated packages, which fix
these bugs.

Solution

Before applying this update, make sure that all previously-released errata
relevant to your system have been applied.

This update is available via Red Hat Network. Details on how to use the Red Hat
Network to apply this update are available at
https://access.redhat.com/knowledge/articles/11258

Affected Products

• Red Hat Enterprise Linux Server 6 x86_64
• Red Hat Enterprise Linux Server 6 i386
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 6.3 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 6.3 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 IBM z Systems - Extended Update Support 6.3 s390x
• Red Hat Enterprise Linux for Power, big endian 6 ppc64
• Red Hat Enterprise Linux for Power, big endian - Extended Update Support 6.3 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 Update Support from RHUI 6.3 x86_64
• Red Hat Enterprise Linux Server - Extended Update Support from RHUI 6.3 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
• Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension (for IBM z Systems) 6 s390x

Fixes

• BZ - 834217 - dump-utmp Segmentation fault on ppc64
• BZ - 838998 - sa -u cause Segmentation fault

CVEs

(none)

References

(none)