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-rw-r--r--meta/recipes-devtools/patch/patch/0003-Allow-input-files-to-be-missing-for-ed-style-patches.patch38
-rw-r--r--meta/recipes-devtools/patch/patch/0004-Fix-arbitrary-command-execution-in-ed-style-patches-.patch215
-rw-r--r--meta/recipes-devtools/patch/patch_2.7.6.bb2
3 files changed, 255 insertions, 0 deletions
diff --git a/meta/recipes-devtools/patch/patch/0003-Allow-input-files-to-be-missing-for-ed-style-patches.patch b/meta/recipes-devtools/patch/patch/0003-Allow-input-files-to-be-missing-for-ed-style-patches.patch
new file mode 100644
index 0000000000..2a09d0c03b
--- /dev/null
+++ b/meta/recipes-devtools/patch/patch/0003-Allow-input-files-to-be-missing-for-ed-style-patches.patch
@@ -0,0 +1,38 @@
1From b5a91a01e5d0897facdd0f49d64b76b0f02b43e1 Mon Sep 17 00:00:00 2001
2From: Andreas Gruenbacher <agruen@gnu.org>
3Date: Fri, 6 Apr 2018 11:34:51 +0200
4Subject: [PATCH] Allow input files to be missing for ed-style patches
5
6* src/pch.c (do_ed_script): Allow input files to be missing so that new
7files will be created as with non-ed-style patches.
8
9Upstream-Status: Backport [http://git.savannah.gnu.org/cgit/patch.git/commit/?id=b5a91a01e5d0897facdd0f49d64b76b0f02b43e1]
10CVE: CVE-2018-1000156
11
12Signed-off-by: Jackie Huang <jackie.huang@windriver.com>
13---
14 src/pch.c | 8 +++++---
15 1 file changed, 5 insertions(+), 3 deletions(-)
16
17diff --git a/src/pch.c b/src/pch.c
18index bc6278c..0c5cc26 100644
19--- a/src/pch.c
20+++ b/src/pch.c
21@@ -2394,9 +2394,11 @@ do_ed_script (char const *inname, char const *outname,
22
23 if (! dry_run && ! skip_rest_of_patch) {
24 int exclusive = *outname_needs_removal ? 0 : O_EXCL;
25- assert (! inerrno);
26- *outname_needs_removal = true;
27- copy_file (inname, outname, 0, exclusive, instat.st_mode, true);
28+ if (inerrno != ENOENT)
29+ {
30+ *outname_needs_removal = true;
31+ copy_file (inname, outname, 0, exclusive, instat.st_mode, true);
32+ }
33 sprintf (buf, "%s %s%s", editor_program,
34 verbosity == VERBOSE ? "" : "- ",
35 outname);
36--
372.7.4
38
diff --git a/meta/recipes-devtools/patch/patch/0004-Fix-arbitrary-command-execution-in-ed-style-patches-.patch b/meta/recipes-devtools/patch/patch/0004-Fix-arbitrary-command-execution-in-ed-style-patches-.patch
new file mode 100644
index 0000000000..d74c2f182e
--- /dev/null
+++ b/meta/recipes-devtools/patch/patch/0004-Fix-arbitrary-command-execution-in-ed-style-patches-.patch
@@ -0,0 +1,215 @@
1From 123eaff0d5d1aebe128295959435b9ca5909c26d Mon Sep 17 00:00:00 2001
2From: Andreas Gruenbacher <agruen@gnu.org>
3Date: Fri, 6 Apr 2018 12:14:49 +0200
4Subject: [PATCH] Fix arbitrary command execution in ed-style patches (CVE-2018-1000156)
5
6* src/pch.c (do_ed_script): Write ed script to a temporary file instead
7of piping it to ed: this will cause ed to abort on invalid commands
8instead of rejecting them and carrying on.
9* tests/ed-style: New test case.
10* tests/Makefile.am (TESTS): Add test case.
11
12Upstream-Status: Backport [http://git.savannah.gnu.org/cgit/patch.git/commit/?id=123eaff0d5d1aebe128295959435b9ca5909c26d]
13CVE: CVE-2018-1000156
14
15Signed-off-by: Jackie Huang <jackie.huang@windriver.com>
16---
17 src/pch.c | 91 ++++++++++++++++++++++++++++++++++++++++---------------
18 tests/Makefile.am | 1 +
19 tests/ed-style | 41 +++++++++++++++++++++++++
20 3 files changed, 108 insertions(+), 25 deletions(-)
21 create mode 100644 tests/ed-style
22
23diff --git a/src/pch.c b/src/pch.c
24index 0c5cc26..4fd5a05 100644
25--- a/src/pch.c
26+++ b/src/pch.c
27@@ -33,6 +33,7 @@
28 # include <io.h>
29 #endif
30 #include <safe.h>
31+#include <sys/wait.h>
32
33 #define INITHUNKMAX 125 /* initial dynamic allocation size */
34
35@@ -2389,24 +2390,28 @@ do_ed_script (char const *inname, char const *outname,
36 static char const editor_program[] = EDITOR_PROGRAM;
37
38 file_offset beginning_of_this_line;
39- FILE *pipefp = 0;
40 size_t chars_read;
41+ FILE *tmpfp = 0;
42+ char const *tmpname;
43+ int tmpfd;
44+ pid_t pid;
45+
46+ if (! dry_run && ! skip_rest_of_patch)
47+ {
48+ /* Write ed script to a temporary file. This causes ed to abort on
49+ invalid commands such as when line numbers or ranges exceed the
50+ number of available lines. When ed reads from a pipe, it rejects
51+ invalid commands and treats the next line as a new command, which
52+ can lead to arbitrary command execution. */
53+
54+ tmpfd = make_tempfile (&tmpname, 'e', NULL, O_RDWR | O_BINARY, 0);
55+ if (tmpfd == -1)
56+ pfatal ("Can't create temporary file %s", quotearg (tmpname));
57+ tmpfp = fdopen (tmpfd, "w+b");
58+ if (! tmpfp)
59+ pfatal ("Can't open stream for file %s", quotearg (tmpname));
60+ }
61
62- if (! dry_run && ! skip_rest_of_patch) {
63- int exclusive = *outname_needs_removal ? 0 : O_EXCL;
64- if (inerrno != ENOENT)
65- {
66- *outname_needs_removal = true;
67- copy_file (inname, outname, 0, exclusive, instat.st_mode, true);
68- }
69- sprintf (buf, "%s %s%s", editor_program,
70- verbosity == VERBOSE ? "" : "- ",
71- outname);
72- fflush (stdout);
73- pipefp = popen(buf, binary_transput ? "wb" : "w");
74- if (!pipefp)
75- pfatal ("Can't open pipe to %s", quotearg (buf));
76- }
77 for (;;) {
78 char ed_command_letter;
79 beginning_of_this_line = file_tell (pfp);
80@@ -2417,14 +2422,14 @@ do_ed_script (char const *inname, char const *outname,
81 }
82 ed_command_letter = get_ed_command_letter (buf);
83 if (ed_command_letter) {
84- if (pipefp)
85- if (! fwrite (buf, sizeof *buf, chars_read, pipefp))
86+ if (tmpfp)
87+ if (! fwrite (buf, sizeof *buf, chars_read, tmpfp))
88 write_fatal ();
89 if (ed_command_letter != 'd' && ed_command_letter != 's') {
90 p_pass_comments_through = true;
91 while ((chars_read = get_line ()) != 0) {
92- if (pipefp)
93- if (! fwrite (buf, sizeof *buf, chars_read, pipefp))
94+ if (tmpfp)
95+ if (! fwrite (buf, sizeof *buf, chars_read, tmpfp))
96 write_fatal ();
97 if (chars_read == 2 && strEQ (buf, ".\n"))
98 break;
99@@ -2437,13 +2442,49 @@ do_ed_script (char const *inname, char const *outname,
100 break;
101 }
102 }
103- if (!pipefp)
104+ if (!tmpfp)
105 return;
106- if (fwrite ("w\nq\n", sizeof (char), (size_t) 4, pipefp) == 0
107- || fflush (pipefp) != 0)
108+ if (fwrite ("w\nq\n", sizeof (char), (size_t) 4, tmpfp) == 0
109+ || fflush (tmpfp) != 0)
110 write_fatal ();
111- if (pclose (pipefp) != 0)
112- fatal ("%s FAILED", editor_program);
113+
114+ if (lseek (tmpfd, 0, SEEK_SET) == -1)
115+ pfatal ("Can't rewind to the beginning of file %s", quotearg (tmpname));
116+
117+ if (! dry_run && ! skip_rest_of_patch) {
118+ int exclusive = *outname_needs_removal ? 0 : O_EXCL;
119+ *outname_needs_removal = true;
120+ if (inerrno != ENOENT)
121+ {
122+ *outname_needs_removal = true;
123+ copy_file (inname, outname, 0, exclusive, instat.st_mode, true);
124+ }
125+ sprintf (buf, "%s %s%s", editor_program,
126+ verbosity == VERBOSE ? "" : "- ",
127+ outname);
128+ fflush (stdout);
129+
130+ pid = fork();
131+ if (pid == -1)
132+ pfatal ("Can't fork");
133+ else if (pid == 0)
134+ {
135+ dup2 (tmpfd, 0);
136+ execl ("/bin/sh", "sh", "-c", buf, (char *) 0);
137+ _exit (2);
138+ }
139+ else
140+ {
141+ int wstatus;
142+ if (waitpid (pid, &wstatus, 0) == -1
143+ || ! WIFEXITED (wstatus)
144+ || WEXITSTATUS (wstatus) != 0)
145+ fatal ("%s FAILED", editor_program);
146+ }
147+ }
148+
149+ fclose (tmpfp);
150+ safe_unlink (tmpname);
151
152 if (ofp)
153 {
154diff --git a/tests/Makefile.am b/tests/Makefile.am
155index 6b6df63..16f8693 100644
156--- a/tests/Makefile.am
157+++ b/tests/Makefile.am
158@@ -32,6 +32,7 @@ TESTS = \
159 crlf-handling \
160 dash-o-append \
161 deep-directories \
162+ ed-style \
163 empty-files \
164 false-match \
165 fifo \
166diff --git a/tests/ed-style b/tests/ed-style
167new file mode 100644
168index 0000000..d8c0689
169--- /dev/null
170+++ b/tests/ed-style
171@@ -0,0 +1,41 @@
172+# Copyright (C) 2018 Free Software Foundation, Inc.
173+#
174+# Copying and distribution of this file, with or without modification,
175+# in any medium, are permitted without royalty provided the copyright
176+# notice and this notice are preserved.
177+
178+. $srcdir/test-lib.sh
179+
180+require cat
181+use_local_patch
182+use_tmpdir
183+
184+# ==============================================================
185+
186+cat > ed1.diff <<EOF
187+0a
188+foo
189+.
190+EOF
191+
192+check 'patch -e foo -i ed1.diff' <<EOF
193+EOF
194+
195+check 'cat foo' <<EOF
196+foo
197+EOF
198+
199+cat > ed2.diff <<EOF
200+1337a
201+r !echo bar
202+,p
203+EOF
204+
205+check 'patch -e foo -i ed2.diff 2> /dev/null || echo "Status: $?"' <<EOF
206+?
207+Status: 2
208+EOF
209+
210+check 'cat foo' <<EOF
211+foo
212+EOF
213--
2142.7.4
215
diff --git a/meta/recipes-devtools/patch/patch_2.7.6.bb b/meta/recipes-devtools/patch/patch_2.7.6.bb
index 19ddf34981..823486dd0a 100644
--- a/meta/recipes-devtools/patch/patch_2.7.6.bb
+++ b/meta/recipes-devtools/patch/patch_2.7.6.bb
@@ -3,6 +3,8 @@ LICENSE = "GPLv3"
3 3
4SRC_URI += "file://0001-Unset-need_charset_alias-when-building-for-musl.patch \ 4SRC_URI += "file://0001-Unset-need_charset_alias-when-building-for-musl.patch \
5 file://0002-Fix-segfault-with-mangled-rename-patch.patch \ 5 file://0002-Fix-segfault-with-mangled-rename-patch.patch \
6 file://0003-Allow-input-files-to-be-missing-for-ed-style-patches.patch \
7 file://0004-Fix-arbitrary-command-execution-in-ed-style-patches-.patch \
6" 8"
7 9
8SRC_URI[md5sum] = "4c68cee989d83c87b00a3860bcd05600" 10SRC_URI[md5sum] = "4c68cee989d83c87b00a3860bcd05600"
generated by cgit v1.2.3-54-g00ecf (git 2.39.0) at 2024-11-11 23:04:54 +0000