Issued:
2014-10-13
Updated:
2014-10-13

RHBA-2014:1604 - ltrace bug fix update

Synopsis

ltrace bug fix update

Type/Severity

Bug Fix Advisory

Topic

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

Description

The ltrace utility is a debugging program that runs a specified command until the command exits. While the command is executing, ltrace intercepts and records both the dynamic library calls called by the executed process and the signals received by the executed process. The ltrace utility can also intercept and print system calls executed by the process.

This update fixes the following bugs:

  • Previously, the ltrace utility did not support the Position Independent Executables (PIE) binaries, which are linked similarly to shared libraries, and processes. Consequently, addresses found in images of those binaries needed additional adjustment for the actual address where the binary was loaded during the process startup. With this update, the support for the PIE binaries and processes has been added and ltrace now handles the additional processing for the PIE binaries correctly. (BZ#868280)

  • When copying internal structures after cloning a process, the ltrace utility did not copy a string containing a path to an executable properly. This behavior led to errors in heap management and could cause ltrace to terminate unexpectedly. The underlying source code has been modified and ltrace now copies memory when cloning traced processes correctly. (BZ#891607)

Users of ltrace 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/articles/11258

Affected Products

ProductVersionArch
Red Hat Enterprise Linux for Scientific Computing6x86_64
Red Hat Enterprise Linux for Power, big endian6ppc64
Red Hat Enterprise Linux for IBM z Systems6s390x
Red Hat Enterprise Linux Workstation6x86_64
Red Hat Enterprise Linux Workstation6i386
Red Hat Enterprise Linux Server6x86_64
Red Hat Enterprise Linux Server6i386
Red Hat Enterprise Linux Server from RHUI6x86_64
Red Hat Enterprise Linux Server from RHUI6i386
Red Hat Enterprise Linux Server - Extended Life Cycle Support6x86_64
Red Hat Enterprise Linux Server - Extended Life Cycle Support6i386
Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension6x86_64
Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension6i386
Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension (for IBM z Systems)6s390x
Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems)6s390x
Red Hat Enterprise Linux Desktop6x86_64
Red Hat Enterprise Linux Desktop6i386

Updated Packages

  • ltrace-debuginfo-0.5-28.45svn.el6.x86_64.rpm
  • ltrace-0.5-28.45svn.el6.x86_64.rpm
  • ltrace-debuginfo-0.5-28.45svn.el6.ppc64.rpm
  • ltrace-0.5-28.45svn.el6.ppc64.rpm
  • ltrace-debuginfo-0.5-28.45svn.el6.i686.rpm
  • ltrace-debuginfo-0.5-28.45svn.el6.s390x.rpm
  • ltrace-0.5-28.45svn.el6.s390x.rpm
  • ltrace-0.5-28.45svn.el6.i686.rpm
  • ltrace-0.5-28.45svn.el6.src.rpm

Fixes

(none)

CVEs

(none)

References

(none)

Additional information