/[smecontribs]/rpms/libarchive/contribs9/libarchive-2.8.3-CVE-2015-8932.patch
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Revision 1.1 - (hide annotations) (download)
Sun Apr 8 03:27:37 2018 UTC (6 years, 1 month ago) by jpp
Branch: MAIN
CVS Tags: libarchive-2_8_5-1_el6_sme, libarchive-2_8_5-0_el6_sme, HEAD
sources

1 jpp 1.1 From c5161728f1f445810fd0e7630fc4c68f5c233007 Mon Sep 17 00:00:00 2001
2     From: Pavel Raiskup <praiskup@redhat.com>
3     Date: Mon, 18 Jul 2016 10:26:36 +0200
4     Subject: [PATCH 1/2] This is a combination of 3 commits. ==
5    
6     And there is one downstream patch for API incompatibility because we
7     applied 3.X patch against 2.8.3 version.
8    
9     == The first commit's message is: ==
10    
11     Issue 175: Simplify filter bidding code.
12    
13     SVN-Revision: 3663
14    
15     Generated by:
16     git show d00167e1 libarchive/archive_read_support_filter_compress.c
17    
18     == This is the 2nd commit message: ==
19    
20     Issue 547: problems with compress bidder
21    
22     The code previously was not very careful about verifying the
23     compression parameters. This led to cases where it failed to
24     reject invalid compressed data at the beginning. The invalid
25     left shift was one symptom of this.
26    
27     The code is now more careful: It verifies that the compression
28     parameter byte exists and verifies that the maximum code size
29     is <= 16 bits.
30    
31     This also includes some new tests to verify that truncated or
32     otherwise invalid compressed data is rejected.
33    
34     == This is the 3rd commit message: ==
35    
36     add missing tests to automake
37     ---
38     Makefile.am | 1 +
39     .../archive_read_support_compression_compress.c | 25 ++++---
40     libarchive/test/test_read_filter_compress.c | 80 ++++++++++++++++++++++
41     3 files changed, 96 insertions(+), 10 deletions(-)
42     create mode 100644 libarchive/test/test_read_filter_compress.c
43    
44     diff --git a/Makefile.am b/Makefile.am
45     index 61e8da4..9844b3c 100644
46     --- a/Makefile.am
47     +++ b/Makefile.am
48     @@ -252,6 +252,7 @@ libarchive_test_SOURCES= \
49     libarchive/test/test_read_disk_entry_from_file.c \
50     libarchive/test/test_read_extract.c \
51     libarchive/test/test_read_file_nonexistent.c \
52     + libarchive/test/test_read_filter_compress.c \
53     libarchive/test/test_read_format_ar.c \
54     libarchive/test/test_read_format_cpio_bin.c \
55     libarchive/test/test_read_format_cpio_bin_Z.c \
56     diff --git a/libarchive/archive_read_support_compression_compress.c b/libarchive/archive_read_support_compression_compress.c
57     index 2461975..09a6cbd 100644
58     --- a/libarchive/archive_read_support_compression_compress.c
59     +++ b/libarchive/archive_read_support_compression_compress.c
60     @@ -174,23 +174,22 @@ compress_bidder_bid(struct archive_read_filter_bidder *self,
61    
62     (void)self; /* UNUSED */
63    
64     - buffer = __archive_read_filter_ahead(filter, 2, &avail);
65     + /* Shortest valid compress file is 3 bytes. */
66     + buffer = __archive_read_filter_ahead(filter, 3, &avail);
67    
68     if (buffer == NULL)
69     return (0);
70    
71     bits_checked = 0;
72     - if (buffer[0] != 037) /* Verify first ID byte. */
73     + /* First two bytes are the magic value */
74     + if (buffer[0] != 0x1F || buffer[1] != 0x9D)
75     return (0);
76     - bits_checked += 8;
77     -
78     - if (buffer[1] != 0235) /* Verify second ID byte. */
79     + /* Third byte holds compression parameters. */
80     + if (buffer[2] & 0x20) /* Reserved bit, must be zero. */
81     return (0);
82     - bits_checked += 8;
83     -
84     - /*
85     - * TODO: Verify more.
86     - */
87     + if (buffer[2] & 0x40) /* Reserved bit, must be zero. */
88     + return (0);
89     + bits_checked += 18;
90    
91     return (bits_checked);
92     }
93     @@ -232,7 +231,13 @@ compress_bidder_init(struct archive_read_filter *self)
94     (void)getbits(self, 8); /* Skip first signature byte. */
95     (void)getbits(self, 8); /* Skip second signature byte. */
96    
97     + /* Get compression parameters. */
98     code = getbits(self, 8);
99     + if ((code & 0x1f) > 16) {
100     + archive_set_error(&self->archive->archive, -1,
101     + "Invalid compressed data");
102     + return (ARCHIVE_FATAL);
103     + }
104     state->maxcode_bits = code & 0x1f;
105     state->maxcode = (1 << state->maxcode_bits);
106     state->use_reset_code = code & 0x80;
107     diff --git a/libarchive/test/test_read_filter_compress.c b/libarchive/test/test_read_filter_compress.c
108     new file mode 100644
109     index 0000000..03a1d5f
110     --- /dev/null
111     +++ b/libarchive/test/test_read_filter_compress.c
112     @@ -0,0 +1,80 @@
113     +/*-
114     + * Copyright (c) 2003-2008 Tim Kientzle
115     + * All rights reserved.
116     + *
117     + * Redistribution and use in source and binary forms, with or without
118     + * modification, are permitted provided that the following conditions
119     + * are met:
120     + * 1. Redistributions of source code must retain the above copyright
121     + * notice, this list of conditions and the following disclaimer.
122     + * 2. Redistributions in binary form must reproduce the above copyright
123     + * notice, this list of conditions and the following disclaimer in the
124     + * documentation and/or other materials provided with the distribution.
125     + *
126     + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
127     + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
128     + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
129     + * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
130     + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
131     + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
132     + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
133     + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
134     + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
135     + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
136     + */
137     +#include "test.h"
138     +
139     +DEFINE_TEST(test_read_filter_compress_truncated)
140     +{
141     + const char data[] = {0x1f, 0x9d};
142     + struct archive *a;
143     +
144     + assert((a = archive_read_new()) != NULL);
145     + assertEqualIntA(a, ARCHIVE_OK, archive_read_support_filter_compress(a));
146     + assertEqualIntA(a, ARCHIVE_OK, archive_read_support_format_all(a));
147     + assertEqualIntA(a, ARCHIVE_FATAL,
148     + archive_read_open_memory(a, data, sizeof(data)));
149     +
150     + assertEqualInt(ARCHIVE_OK, archive_read_close(a));
151     + assertEqualInt(ARCHIVE_OK, archive_read_free(a));
152     +}
153     +
154     +
155     +DEFINE_TEST(test_read_filter_compress_empty2)
156     +{
157     + const char data[] = {0x1f, 0x9d, 0x10};
158     + struct archive *a;
159     + struct archive_entry *ae;
160     +
161     + assert((a = archive_read_new()) != NULL);
162     + assertEqualIntA(a, ARCHIVE_OK, archive_read_support_filter_compress(a));
163     + assertEqualIntA(a, ARCHIVE_OK, archive_read_support_format_all(a));
164     + assertEqualIntA(a, ARCHIVE_OK,
165     + archive_read_open_memory(a, data, sizeof(data)));
166     +
167     + assertEqualIntA(a, ARCHIVE_EOF, archive_read_next_header(a, &ae));
168     +
169     + /* Verify that the format detection worked. */
170     + assertEqualInt(archive_filter_code(a, 0), ARCHIVE_FILTER_COMPRESS);
171     + assertEqualString(archive_filter_name(a, 0), "compress (.Z)");
172     + assertEqualInt(archive_format(a), ARCHIVE_FORMAT_EMPTY);
173     +
174     + assertEqualInt(ARCHIVE_OK, archive_read_close(a));
175     + assertEqualInt(ARCHIVE_OK, archive_read_free(a));
176     +}
177     +
178     +
179     +DEFINE_TEST(test_read_filter_compress_invalid)
180     +{
181     + const char data[] = {0x1f, 0x9d, 0x11};
182     + struct archive *a;
183     +
184     + assert((a = archive_read_new()) != NULL);
185     + assertEqualIntA(a, ARCHIVE_OK, archive_read_support_filter_compress(a));
186     + assertEqualIntA(a, ARCHIVE_OK, archive_read_support_format_all(a));
187     + assertEqualIntA(a, ARCHIVE_FATAL,
188     + archive_read_open_memory(a, data, sizeof(data)));
189     +
190     + assertEqualInt(ARCHIVE_OK, archive_read_close(a));
191     + assertEqualInt(ARCHIVE_OK, archive_read_free(a));
192     +}
193     --
194     2.7.4
195    
196     From 3efc62f095768b3a92eef347d223bc013f988a18 Mon Sep 17 00:00:00 2001
197     From: Pavel Raiskup <praiskup@redhat.com>
198     Date: Mon, 18 Jul 2016 12:31:30 +0200
199     Subject: [PATCH 2/2] fix testsuite
200    
201     ---
202     libarchive/test/test_read_filter_compress.c | 28 ++++++++++++++++------------
203     1 file changed, 16 insertions(+), 12 deletions(-)
204    
205     diff --git a/libarchive/test/test_read_filter_compress.c b/libarchive/test/test_read_filter_compress.c
206     index 03a1d5f..b92a944 100644
207     --- a/libarchive/test/test_read_filter_compress.c
208     +++ b/libarchive/test/test_read_filter_compress.c
209     @@ -26,28 +26,32 @@
210    
211     DEFINE_TEST(test_read_filter_compress_truncated)
212     {
213     - const char data[] = {0x1f, 0x9d};
214     + char data[] = {0x1f, 0x9d};
215     struct archive *a;
216     + struct archive_entry *ae;
217    
218     assert((a = archive_read_new()) != NULL);
219     - assertEqualIntA(a, ARCHIVE_OK, archive_read_support_filter_compress(a));
220     + assertEqualIntA(a, ARCHIVE_OK, archive_read_support_compression_compress(a));
221     assertEqualIntA(a, ARCHIVE_OK, archive_read_support_format_all(a));
222     - assertEqualIntA(a, ARCHIVE_FATAL,
223     - archive_read_open_memory(a, data, sizeof(data)));
224     + /* this is ARCHIVE_OK because 2.8.3 does not bid the format here yet .. */
225     + assertEqualIntA(a, ARCHIVE_OK, archive_read_open_memory(a, data, sizeof(data)));
226     + /* .. but it must fail here */
227     + assertEqualIntA(a, ARCHIVE_FATAL, archive_read_next_header(a, &ae));
228     +
229    
230     assertEqualInt(ARCHIVE_OK, archive_read_close(a));
231     - assertEqualInt(ARCHIVE_OK, archive_read_free(a));
232     + assertEqualInt(ARCHIVE_OK, archive_read_finish(a));
233     }
234    
235    
236     DEFINE_TEST(test_read_filter_compress_empty2)
237     {
238     - const char data[] = {0x1f, 0x9d, 0x10};
239     + char data[] = {0x1f, 0x9d, 0x10};
240     struct archive *a;
241     struct archive_entry *ae;
242    
243     assert((a = archive_read_new()) != NULL);
244     - assertEqualIntA(a, ARCHIVE_OK, archive_read_support_filter_compress(a));
245     + assertEqualIntA(a, ARCHIVE_OK, archive_read_support_compression_compress(a));
246     assertEqualIntA(a, ARCHIVE_OK, archive_read_support_format_all(a));
247     assertEqualIntA(a, ARCHIVE_OK,
248     archive_read_open_memory(a, data, sizeof(data)));
249     @@ -55,12 +59,12 @@ DEFINE_TEST(test_read_filter_compress_empty2)
250     assertEqualIntA(a, ARCHIVE_EOF, archive_read_next_header(a, &ae));
251    
252     /* Verify that the format detection worked. */
253     - assertEqualInt(archive_filter_code(a, 0), ARCHIVE_FILTER_COMPRESS);
254     - assertEqualString(archive_filter_name(a, 0), "compress (.Z)");
255     + assertEqualInt(archive_compression(a), ARCHIVE_COMPRESSION_COMPRESS);
256     + assertEqualString(archive_compression_name(a), "compress (.Z)");
257     assertEqualInt(archive_format(a), ARCHIVE_FORMAT_EMPTY);
258    
259     assertEqualInt(ARCHIVE_OK, archive_read_close(a));
260     - assertEqualInt(ARCHIVE_OK, archive_read_free(a));
261     + assertEqualInt(ARCHIVE_OK, archive_read_finish(a));
262     }
263    
264    
265     @@ -70,11 +74,11 @@ DEFINE_TEST(test_read_filter_compress_invalid)
266     struct archive *a;
267    
268     assert((a = archive_read_new()) != NULL);
269     - assertEqualIntA(a, ARCHIVE_OK, archive_read_support_filter_compress(a));
270     + assertEqualIntA(a, ARCHIVE_OK, archive_read_support_compression_compress(a));
271     assertEqualIntA(a, ARCHIVE_OK, archive_read_support_format_all(a));
272     assertEqualIntA(a, ARCHIVE_FATAL,
273     archive_read_open_memory(a, data, sizeof(data)));
274    
275     assertEqualInt(ARCHIVE_OK, archive_read_close(a));
276     - assertEqualInt(ARCHIVE_OK, archive_read_free(a));
277     + assertEqualInt(ARCHIVE_OK, archive_read_finish(a));
278     }
279     --
280     2.7.4
281    

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