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authorAnuj Mittal <anuj.mittal@intel.com>2019-07-10 10:37:22 +0800
committerRichard Purdie <richard.purdie@linuxfoundation.org>2019-07-11 09:32:50 +0100
commit6beec1687f850b80cd3f1e8b0c498b0b2a435827 (patch)
tree24219be6fc4588a0af29facbcdd68f6fe342f0bd /meta/recipes-devtools/binutils/binutils
parent157dc99982a73e4245b29c1189f2b9d858dcd628 (diff)
downloadpoky-6beec1687f850b80cd3f1e8b0c498b0b2a435827.tar.gz
binutils: fix CVE-2019-12972 CVE-2019-9071
(From OE-Core rev: 093f0914f261a27d58ecba9c1e9d3b78a35af012) Signed-off-by: Anuj Mittal <anuj.mittal@intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Diffstat (limited to 'meta/recipes-devtools/binutils/binutils')
-rw-r--r--meta/recipes-devtools/binutils/binutils/CVE-2019-12972.patch51
-rw-r--r--meta/recipes-devtools/binutils/binutils/CVE-2019-9071.patch164
2 files changed, 215 insertions, 0 deletions
diff --git a/meta/recipes-devtools/binutils/binutils/CVE-2019-12972.patch b/meta/recipes-devtools/binutils/binutils/CVE-2019-12972.patch
new file mode 100644
index 0000000000..07d1d65467
--- /dev/null
+++ b/meta/recipes-devtools/binutils/binutils/CVE-2019-12972.patch
@@ -0,0 +1,51 @@
1From 30bcc01478433a1cb05b36dc5c4beef7d2c89b5b Mon Sep 17 00:00:00 2001
2From: Alan Modra <amodra@gmail.com>
3Date: Fri, 21 Jun 2019 11:51:38 +0930
4Subject: [PATCH] PR24689, string table corruption
5
6The testcase in the PR had a e_shstrndx section of type SHT_GROUP.
7hdr->contents were initialized by setup_group rather than being read
8from the file, thus last byte was not zero and string dereference ran
9off the end of the buffer.
10
11 PR 24689
12 * elfcode.h (elf_object_p): Check type of e_shstrndx section.
13
14Upstream-Status: Backport
15CVE: CVE-2019-12972
16Signed-off-by: Anuj Mittal <anuj.mittal@intel.com>
17---
18 bfd/ChangeLog | 5 +++++
19 bfd/elfcode.h | 3 ++-
20 2 files changed, 7 insertions(+), 1 deletion(-)
21
22diff --git a/bfd/ChangeLog b/bfd/ChangeLog
23index 91f09e6346..e66fb40a2c 100644
24--- a/bfd/ChangeLog
25+++ b/bfd/ChangeLog
26@@ -1,3 +1,8 @@
27+2019-06-21 Alan Modra <amodra@gmail.com>
28+
29+ PR 24689
30+ * elfcode.h (elf_object_p): Check type of e_shstrndx section.
31+
32 2019-02-20 Alan Modra <amodra@gmail.com>
33
34 PR 24236
35diff --git a/bfd/elfcode.h b/bfd/elfcode.h
36index ec5ea766de..a35a629087 100644
37--- a/bfd/elfcode.h
38+++ b/bfd/elfcode.h
39@@ -755,7 +755,8 @@ elf_object_p (bfd *abfd)
40 /* A further sanity check. */
41 if (i_ehdrp->e_shnum != 0)
42 {
43- if (i_ehdrp->e_shstrndx >= elf_numsections (abfd))
44+ if (i_ehdrp->e_shstrndx >= elf_numsections (abfd)
45+ || i_shdrp[i_ehdrp->e_shstrndx].sh_type != SHT_STRTAB)
46 {
47 /* PR 2257:
48 We used to just goto got_wrong_format_error here
49--
502.20.1
51
diff --git a/meta/recipes-devtools/binutils/binutils/CVE-2019-9071.patch b/meta/recipes-devtools/binutils/binutils/CVE-2019-9071.patch
new file mode 100644
index 0000000000..26f4809cf0
--- /dev/null
+++ b/meta/recipes-devtools/binutils/binutils/CVE-2019-9071.patch
@@ -0,0 +1,164 @@
1From c1202057eb9161a86af27d867703235fee7b7555 Mon Sep 17 00:00:00 2001
2From: Nick Clifton <nickc@redhat.com>
3Date: Wed, 10 Apr 2019 15:49:36 +0100
4Subject: [PATCH] Pull in patch for libiberty that fixes a stack exhaustion bug
5 when demangling a pathalogically constructed mangled name.
6
7 PR 89394
8 * cp-demangle.c (cplus_demangle_fill_name): Reject negative
9 lengths.
10 (d_count_templates_scopes): Replace num_templates and num_scopes
11 parameters with a struct d_print_info pointer parameter. Adjust
12 body of the function accordingly. Add recursion counter and check
13 that the recursion limit is not reached.
14 (d_print_init): Pass dpi parameter to d_count_templates_scopes.
15 Reset recursion counter afterwards, unless the recursion limit was
16 reached.
17
18CVE: CVE-2019-9071
19Upstream-Status: Backport
20Signed-off-by: Anuj Mittal <anuj.mittal@intel.com>
21---
22 ChangeLog | 16 ++++++++++++++
23 libiberty/cp-demangle.c | 48 ++++++++++++++++++++++-------------------
24 2 files changed, 42 insertions(+), 22 deletions(-)
25
26diff --git a/ChangeLog b/ChangeLog
27index cd631a15b6..4df3aaa62c 100644
28--- a/ChangeLog
29+++ b/ChangeLog
30@@ -1,3 +1,19 @@
31+2019-04-10 Nick Clifton <nickc@redhat.com>
32+
33+ * libiberty: Sync with gcc. Bring in:
34+ 2019-04-10 Nick Clifton <nickc@redhat.com>
35+
36+ PR 89394
37+ * cp-demangle.c (cplus_demangle_fill_name): Reject negative
38+ lengths.
39+ (d_count_templates_scopes): Replace num_templates and num_scopes
40+ parameters with a struct d_print_info pointer parameter. Adjust
41+ body of the function accordingly. Add recursion counter and check
42+ that the recursion limit is not reached.
43+ (d_print_init): Pass dpi parameter to d_count_templates_scopes.
44+ Reset recursion counter afterwards, unless the recursion limit was
45+ reached.
46+
47 2018-06-24 Nick Clifton <nickc@redhat.com>
48
49 2.32 branch created.
50diff --git a/libiberty/cp-demangle.c b/libiberty/cp-demangle.c
51index b34b485692..779b4e763a 100644
52--- a/libiberty/cp-demangle.c
53+++ b/libiberty/cp-demangle.c
54@@ -861,7 +861,7 @@ CP_STATIC_IF_GLIBCPP_V3
55 int
56 cplus_demangle_fill_name (struct demangle_component *p, const char *s, int len)
57 {
58- if (p == NULL || s == NULL || len == 0)
59+ if (p == NULL || s == NULL || len <= 0)
60 return 0;
61 p->d_printing = 0;
62 p->type = DEMANGLE_COMPONENT_NAME;
63@@ -4061,7 +4061,7 @@ d_growable_string_callback_adapter (const char *s, size_t l, void *opaque)
64 are larger than the actual numbers encountered. */
65
66 static void
67-d_count_templates_scopes (int *num_templates, int *num_scopes,
68+d_count_templates_scopes (struct d_print_info *dpi,
69 const struct demangle_component *dc)
70 {
71 if (dc == NULL)
72@@ -4081,13 +4081,13 @@ d_count_templates_scopes (int *num_templates, int *num_scopes,
73 break;
74
75 case DEMANGLE_COMPONENT_TEMPLATE:
76- (*num_templates)++;
77+ dpi->num_copy_templates++;
78 goto recurse_left_right;
79
80 case DEMANGLE_COMPONENT_REFERENCE:
81 case DEMANGLE_COMPONENT_RVALUE_REFERENCE:
82 if (d_left (dc)->type == DEMANGLE_COMPONENT_TEMPLATE_PARAM)
83- (*num_scopes)++;
84+ dpi->num_saved_scopes++;
85 goto recurse_left_right;
86
87 case DEMANGLE_COMPONENT_QUAL_NAME:
88@@ -4152,42 +4152,42 @@ d_count_templates_scopes (int *num_templates, int *num_scopes,
89 case DEMANGLE_COMPONENT_TAGGED_NAME:
90 case DEMANGLE_COMPONENT_CLONE:
91 recurse_left_right:
92- d_count_templates_scopes (num_templates, num_scopes,
93- d_left (dc));
94- d_count_templates_scopes (num_templates, num_scopes,
95- d_right (dc));
96+ /* PR 89394 - Check for too much recursion. */
97+ if (dpi->recursion > DEMANGLE_RECURSION_LIMIT)
98+ /* FIXME: There ought to be a way to report to the
99+ user that the recursion limit has been reached. */
100+ return;
101+
102+ ++ dpi->recursion;
103+ d_count_templates_scopes (dpi, d_left (dc));
104+ d_count_templates_scopes (dpi, d_right (dc));
105+ -- dpi->recursion;
106 break;
107
108 case DEMANGLE_COMPONENT_CTOR:
109- d_count_templates_scopes (num_templates, num_scopes,
110- dc->u.s_ctor.name);
111+ d_count_templates_scopes (dpi, dc->u.s_ctor.name);
112 break;
113
114 case DEMANGLE_COMPONENT_DTOR:
115- d_count_templates_scopes (num_templates, num_scopes,
116- dc->u.s_dtor.name);
117+ d_count_templates_scopes (dpi, dc->u.s_dtor.name);
118 break;
119
120 case DEMANGLE_COMPONENT_EXTENDED_OPERATOR:
121- d_count_templates_scopes (num_templates, num_scopes,
122- dc->u.s_extended_operator.name);
123+ d_count_templates_scopes (dpi, dc->u.s_extended_operator.name);
124 break;
125
126 case DEMANGLE_COMPONENT_FIXED_TYPE:
127- d_count_templates_scopes (num_templates, num_scopes,
128- dc->u.s_fixed.length);
129+ d_count_templates_scopes (dpi, dc->u.s_fixed.length);
130 break;
131
132 case DEMANGLE_COMPONENT_GLOBAL_CONSTRUCTORS:
133 case DEMANGLE_COMPONENT_GLOBAL_DESTRUCTORS:
134- d_count_templates_scopes (num_templates, num_scopes,
135- d_left (dc));
136+ d_count_templates_scopes (dpi, d_left (dc));
137 break;
138
139 case DEMANGLE_COMPONENT_LAMBDA:
140 case DEMANGLE_COMPONENT_DEFAULT_ARG:
141- d_count_templates_scopes (num_templates, num_scopes,
142- dc->u.s_unary_num.sub);
143+ d_count_templates_scopes (dpi, dc->u.s_unary_num.sub);
144 break;
145 }
146 }
147@@ -4222,8 +4222,12 @@ d_print_init (struct d_print_info *dpi, demangle_callbackref callback,
148 dpi->next_copy_template = 0;
149 dpi->num_copy_templates = 0;
150
151- d_count_templates_scopes (&dpi->num_copy_templates,
152- &dpi->num_saved_scopes, dc);
153+ d_count_templates_scopes (dpi, dc);
154+ /* If we did not reach the recursion limit, then reset the
155+ current recursion value back to 0, so that we can print
156+ the templates. */
157+ if (dpi->recursion < DEMANGLE_RECURSION_LIMIT)
158+ dpi->recursion = 0;
159 dpi->num_copy_templates *= dpi->num_saved_scopes;
160
161 dpi->current_template = NULL;
162--
1632.20.1
164
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