BASH PATCH REPORT ================= Bash-Release: 4.2 Patch-ID: bash42-033 Bug-Reported-by: David Leverton Bug-Reference-ID: <4FCCE737.1060603@googlemail.com> 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'): --- a/lib/sh/eaccess.c +++ b/lib/sh/eaccess.c @@ -82,6 +82,8 @@ sh_stat (path, finfo) const char *path; struct stat *finfo; { + static char *pbuf = 0; + if (*path == '\0') { errno = ENOENT; @@ -106,7 +108,7 @@ sh_stat (path, finfo) trailing slash. Make sure /dev/fd/xx really uses DEV_FD_PREFIX/xx. On most systems, with the notable exception of linux, this is effectively a no-op. */ - char pbuf[32]; + pbuf = xrealloc (pbuf, sizeof (DEV_FD_PREFIX) + strlen (path + 8)); strcpy (pbuf, DEV_FD_PREFIX); strcat (pbuf, path + 8); return (stat (pbuf, finfo)); --- a/patchlevel.h +++ b/patchlevel.h @@ -25,6 +25,6 @@ regexp `^#define[ ]*PATCHLEVEL', since that's what support/mkversion.sh looks for to find the patch level (for the sccs version string). */ -#define PATCHLEVEL 32 +#define PATCHLEVEL 33 #endif /* _PATCHLEVEL_H_ */