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disallow -S '' parameter for gunzip

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This commit is contained in:
Karel Klíč 2010-02-22 15:44:18 +00:00
parent 7f78335cea
commit 508e682e06
2 changed files with 50 additions and 1 deletions
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42
gzip-1.3.13-noemptysuffix.patch Normal file
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@ -0,0 +1,42 @@
diff -up gzip-1.3.13/gzip.1.noemptysuffix gzip-1.3.13/gzip.1
--- gzip-1.3.13/gzip.1.noemptysuffix 2009-09-26 20:43:28.000000000 +0200
+++ gzip-1.3.13/gzip.1 2010-02-22 14:29:54.828770607 +0100
@@ -291,15 +291,14 @@ will descend into the directory and comp
).
.TP
.B \-S .suf --suffix .suf
-Use suffix .suf instead of .gz. Any suffix can be given, but suffixes
+When compressing, use suffix .suf instead of .gz.
+Any non-empty suffix can be given, but suffixes
other than .z and .gz should be avoided to avoid confusion when files
-are transferred to other systems. A null suffix forces gunzip to try
-decompression on all given files regardless of suffix, as in:
+are transferred to other systems.
- gunzip -S "" * (*.* for MSDOS)
+When decompressing, add .suf to the beginning of the list of
+suffixes to try, when deriving an output file name from an input file name.
-Previous versions of gzip used
-the .z suffix. This was changed to avoid a conflict with
.IR pack "(1)".
.TP
.B \-t --test
diff -up gzip-1.3.13/gzip.c.noemptysuffix gzip-1.3.13/gzip.c
--- gzip-1.3.13/gzip.c.noemptysuffix 2010-02-22 14:29:54.000000000 +0100
+++ gzip-1.3.13/gzip.c 2010-02-22 14:34:33.480895239 +0100
@@ -547,11 +547,11 @@ int main (argc, argv)
program_name);
}
#endif
- if ((z_len == 0 && !decompress) || z_len > MAX_SUFFIX) {
- fprintf(stderr, "%s: incorrect suffix '%s'\n",
- program_name, z_suffix);
+ if (z_len == 0 || z_len > MAX_SUFFIX) {
+ fprintf(stderr, "%s: invalid suffix '%s'\n", program_name, z_suffix);
do_exit(ERROR);
}
+
if (do_lzw && !decompress) work = lzw;
/* Allocate all global buffers (for DYN_ALLOC option) */

9
gzip.spec
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@ -1,7 +1,7 @@
Summary: The GNU data compression program
Name: gzip
Version: 1.3.13
Release: 2%{?dist}
Release: 3%{?dist}
# info pages are under GFDL license
License: GPLv3+ and GFDL
Group: Applications/File
@ -18,6 +18,9 @@ Patch8: gzip-1.3.5-cve-2006-4337_len.patch
Patch9: gzip-1.3.12-zdiff.patch
# Fixed in upstream code.
Patch10: gzip-1.3.12-cve-2010-0001.patch
# Fixed in upstream code.
# http://thread.gmane.org/gmane.comp.gnu.gzip.bugs/378
Patch11: gzip-1.3.13-noemptysuffix.patch
URL: http://www.gzip.org/
Requires: /sbin/install-info
Requires: mktemp less
@ -44,6 +47,7 @@ very commonly used data compression program.
%patch8 -p1 -b .4337l
%patch9 -p1 -b .ret
%patch10 -p1 -b .cve-2010-0001
%patch11 -p1 -b .noemptysuffix
%build
export DEFS="NO_ASM"
@ -95,6 +99,9 @@ fi
%{_infodir}/gzip.info*
%changelog
* Mon Feb 22 2010 Karel Klic <kklic@redhat.com> - 1.3.13-3
- Added a patch to disallow -S '' parameter (noemptysuffix)
* Fri Jan 22 2010 Karel Klic <kklic@redhat.com> - 1.3.13-2
- Fixed CVE-2010-0001 (rhbz#554418)