bash was updated to fix a critical security issue, a minor security issue and bugs:

In some circumstances, the shell would evaluate shellcode in environment
variables passed at startup time. This allowed code execution by
local or remote attackers who could pass environment variables to bash
scripts. (CVE-2014-6271)

Fixed a temporary file misuse in _rl_tropen (bnc#868822)
Even if used only by developers to debug readline library do not
open temporary files from public location without O_EXCL (CVE-2014-2524)

Additional bugfixes:
- Backported corrected german error message for a failing getpwd (bnc#895475)

- Add bash upstream patch 47 to fix a problem where the function
that shortens pathnames for $PS1 according to the value of
$PROMPT_DIRTRIM uses memcpy on potentially-overlapping regions
of memory, when it should use memmove. The result is garbled
pathnames in prompt strings.

- Add bash upstream patch 46 to fix a problem introduced by patch
32 a problem with "$@" and arrays expanding empty positional
parameters or array elements when using substring expansion,
pattern substitution, or case modfication. The empty parameters
or array elements are removed instead of expanding to empty
strings ("").

- Add bash-4.2-strcpy.patch from upstream mailing list to patch
collection tar ball to avoid when using \w in the prompt and
changing the directory outside of HOME the a strcpy work on
overlapping memory areas.