(RHSA-2007:0469) Low: gdb security and bug fix update

GDB, the GNU debugger, allows debugging of programs written in C, C++, and
other languages by executing them in a controlled fashion and then printing
their data.

Various buffer overflows and underflows were found in the DWARF expression
computation stack in GDB. If an attacker could trick a user into loading
an executable containing malicious debugging information into GDB, they may
be able to execute arbitrary code with the privileges of the user.
(CVE-2006-4146)

This updated package also addresses the following issues:

• Support on 64-bit hosts shared libraries debuginfo larger than 2GB.

• Fix a race occasionally leaving the detached processes stopped.

• Fix segmentation fault on the source display by ^X 1.

• Fix a crash on an opaque type dereference.

All users of gdb should upgrade to this updated package, which contains
backported patches to resolve these issues.