Bash-4.2 Official Patch 33

[Chet Ramey]

                             BASH PATCH REPORT
                             =================

Bash-Release:   4.2
Patch-ID:       bash42-033

Bug-Reported-by:        David Leverton <address@hidden>
Bug-Reference-ID:       <address@hidden>
Bug-Reference-URL:

Bug-Description:

Bash uses a static buffer when expanding the /dev/fd prefix for the test
and conditional commands, among other uses, when it should use a dynamic
buffer to avoid buffer overflow.

Patch (apply with `patch -p0'):

*** ../bash-4.2-patched/lib/sh/eaccess.c        2011-01-08 20:50:10.000000000 
-0500
--- lib/sh/eaccess.c    2012-06-04 21:06:43.000000000 -0400
***************
*** 83,86 ****
--- 83,88 ----
       struct stat *finfo;
  {
+   static char *pbuf = 0;
+ 
    if (*path == '\0')
      {
***************
*** 107,111 ****
       On most systems, with the notable exception of linux, this is
       effectively a no-op. */
!       char pbuf[32];
        strcpy (pbuf, DEV_FD_PREFIX);
        strcat (pbuf, path + 8);
--- 109,113 ----
       On most systems, with the notable exception of linux, this is
       effectively a no-op. */
!       pbuf = xrealloc (pbuf, sizeof (DEV_FD_PREFIX) + strlen (path + 8));
        strcpy (pbuf, DEV_FD_PREFIX);
        strcat (pbuf, path + 8);
*** ../bash-4.2-patched/patchlevel.h    Sat Jun 12 20:14:48 2010
--- patchlevel.h        Thu Feb 24 21:41:34 2011
***************
*** 26,30 ****
     looks for to find the patch level (for the sccs version string). */
  
! #define PATCHLEVEL 32
  
  #endif /* _PATCHLEVEL_H_ */
--- 26,30 ----
     looks for to find the patch level (for the sccs version string). */
  
! #define PATCHLEVEL 33
  
  #endif /* _PATCHLEVEL_H_ */

-- 
``The lyf so short, the craft so long to lerne.'' - Chaucer
                 ``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, ITS, CWRU    address@hidden    http://cnswww.cns.cwru.edu/~chet/