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BASH PATCH REPORT
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=================
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Bash-Release: 4.2
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Patch-ID: bash42-033
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Bug-Reported-by: David Leverton <levertond@googlemail.com>
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Bug-Reference-ID: <4FCCE737.1060603@googlemail.com>
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Bug-Reference-URL:
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Bug-Description:
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Bash uses a static buffer when expanding the /dev/fd prefix for the test
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and conditional commands, among other uses, when it should use a dynamic
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buffer to avoid buffer overflow.
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Patch (apply with `patch -p0'):
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*** ../bash-4.2-patched/lib/sh/eaccess.c 2011-01-08 20:50:10.000000000 -0500
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--- lib/sh/eaccess.c 2012-06-04 21:06:43.000000000 -0400
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***************
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*** 83,86 ****
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--- 83,88 ----
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struct stat *finfo;
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{
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+ static char *pbuf = 0;
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+
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if (*path == '\0')
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{
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***************
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*** 107,111 ****
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On most systems, with the notable exception of linux, this is
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effectively a no-op. */
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! char pbuf[32];
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strcpy (pbuf, DEV_FD_PREFIX);
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strcat (pbuf, path + 8);
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--- 109,113 ----
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On most systems, with the notable exception of linux, this is
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effectively a no-op. */
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! pbuf = xrealloc (pbuf, sizeof (DEV_FD_PREFIX) + strlen (path + 8));
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strcpy (pbuf, DEV_FD_PREFIX);
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strcat (pbuf, path + 8);
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*** ../bash-4.2-patched/patchlevel.h Sat Jun 12 20:14:48 2010
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--- patchlevel.h Thu Feb 24 21:41:34 2011
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***************
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*** 26,30 ****
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looks for to find the patch level (for the sccs version string). */
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! #define PATCHLEVEL 32
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#endif /* _PATCHLEVEL_H_ */
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--- 26,30 ----
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looks for to find the patch level (for the sccs version string). */
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! #define PATCHLEVEL 33
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#endif /* _PATCHLEVEL_H_ */
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