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binutils: fix CVE-2020-16592/16598

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fix CVE-2020-16592 & CVE-2020-16598

removed changes to Changelog in patch file

(From OE-Core rev: 02870c7fbaaa1c3869ecb439f5c58fcf40a533be)

Signed-off-by: Lee Chee Yang <chee.yang.lee@intel.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Lee Chee Yang
2020-12-14 18:52:54 +08:00
committed by Richard Purdie
parent 2ccfb319b5
commit e79ccaa277
3 changed files with 95 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
meta/recipes-devtools/binutils/binutils-2.34.inc
View File

@@ -44,5 +44,7 @@ SRC_URI = "\
file://0017-binutils-drop-redundant-program_name-definition-fno-.patch \
file://CVE-2020-0551.patch \
file://0001-gas-improve-reproducibility-for-stabs-debugging-data.patch \
file://CVE-2020-16592.patch \
file://CVE-2020-16598.patch \
"
S = "${WORKDIR}/git"

61
meta/recipes-devtools/binutils/binutils/CVE-2020-16592.patch Normal file
View File

@@ -0,0 +1,61 @@
From 7ecb51549ab1ec22aba5aaf34b70323cf0b8509a Mon Sep 17 00:00:00 2001
From: Alan Modra <amodra@gmail.com>
Date: Wed, 15 Apr 2020 18:58:11 +0930
Subject: [PATCH] PR25823, Use after free in bfd_hash_lookup
PR 25823
* peXXigen.c (_bfd_XXi_swap_sym_in <C_SECTION>): Don't use a
pointer into strings that may be freed for section name, always
allocate a new string.
Upstream-Status: Backport [https://sourceware.org/git/?p=binutils-gdb.git;a=patch;h=7ecb51549ab1ec22aba5aaf34b70323cf0b8509a]
CVE: CVE-2020-16592
Signed-off-by: Chee Yang Lee <chee.yang.lee@intel.com>
---
bfd/peXXigen.c | 20 ++++++++++----------
1 files changed, 10 insertions(+), 10 deletions(-)
diff --git a/bfd/peXXigen.c b/bfd/peXXigen.c
index b9eeb775d9b..8aa5914acd9 100644
--- a/bfd/peXXigen.c
+++ b/bfd/peXXigen.c
@@ -177,25 +177,25 @@ _bfd_XXi_swap_sym_in (bfd * abfd, void * ext1, void * in1)
int unused_section_number = 0;
asection *sec;
flagword flags;
+ size_t name_len;
+ char *sec_name;
for (sec = abfd->sections; sec; sec = sec->next)
if (unused_section_number <= sec->target_index)
unused_section_number = sec->target_index + 1;
- if (name == namebuf)
+ name_len = strlen (name) + 1;
+ sec_name = bfd_alloc (abfd, name_len);
+ if (sec_name == NULL)
{
- name = (const char *) bfd_alloc (abfd, strlen (namebuf) + 1);
- if (name == NULL)
- {
- _bfd_error_handler (_("%pB: out of memory creating name for empty section"),
- abfd);
- return;
- }
- strcpy ((char *) name, namebuf);
+ _bfd_error_handler (_("%pB: out of memory creating name "
+ "for empty section"), abfd);
+ return;
}
+ memcpy (sec_name, name, name_len);
flags = SEC_HAS_CONTENTS | SEC_ALLOC | SEC_DATA | SEC_LOAD;
- sec = bfd_make_section_anyway_with_flags (abfd, name, flags);
+ sec = bfd_make_section_anyway_with_flags (abfd, sec_name, flags);
if (sec == NULL)
{
_bfd_error_handler (_("%pB: unable to create fake empty section"),
--
2.27.0

32
meta/recipes-devtools/binutils/binutils/CVE-2020-16598.patch Normal file
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@@ -0,0 +1,32 @@
From ca3f923f82a079dcf441419f4a50a50f8b4b33c2 Mon Sep 17 00:00:00 2001
From: Alan Modra <amodra@gmail.com>
Date: Fri, 17 Apr 2020 10:38:16 +0930
Subject: [PATCH] PR25840, Null pointer dereference in objdump
PR 25840
* debug.c (debug_class_type_samep): Don't segfault on NULL type.
Upstream-Status: Backport [https://sourceware.org/git/?p=binutils-gdb.git;a=patch;h=ca3f923f82a079dcf441419f4a50a50f8b4b33c2]
CVE: CVE-2020-16598
Signed-off-by: Chee Yang Lee <chee.yang.lee@intel.com>
---
binutils/debug.c | 2 ++
1 files changed, 2 insertions(+)
diff --git a/binutils/debug.c b/binutils/debug.c
index 022fa4edffb..5470e155edc 100644
--- a/binutils/debug.c
+++ b/binutils/debug.c
@@ -3277,6 +3277,8 @@ debug_class_type_samep (struct debug_handle *info, struct debug_type_s *t1,
names, since that sometimes fails in the presence of
typedefs and we really don't care. */
if (strcmp (f1->name, f2->name) != 0
+ || f1->type == NULL
+ || f2->type == NULL
|| ! debug_type_samep (info,
debug_get_real_type ((void *) info,
f1->type, NULL),
--
2.27.0