[oe-commits] [openembedded-core] 01/13: binutils: Security fix CVE-2018-8945
git at git.openembedded.org
git at git.openembedded.org
Mon Aug 6 15:33:06 UTC 2018
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rpurdie pushed a commit to branch sumo
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commit d128790b8593ee0cccd5e3c935ff28fb27644a8c
Author: Armin Kuster <akuster at mvista.com>
AuthorDate: Sun Aug 5 21:51:56 2018 -0700
binutils: Security fix CVE-2018-8945
Affects <= 2.30
Signed-off-by: Armin Kuster <akuster at mvista.com>
---
meta/recipes-devtools/binutils/binutils-2.30.inc | 1 +
.../binutils/binutils/CVE-2018-8945.patch | 70 ++++++++++++++++++++++
2 files changed, 71 insertions(+)
diff --git a/meta/recipes-devtools/binutils/binutils-2.30.inc b/meta/recipes-devtools/binutils/binutils-2.30.inc
index 9c883ac..349fa5a 100644
--- a/meta/recipes-devtools/binutils/binutils-2.30.inc
+++ b/meta/recipes-devtools/binutils/binutils-2.30.inc
@@ -35,6 +35,7 @@ SRC_URI = "\
file://0013-fix-the-incorrect-assembling-for-ppc-wait-mnemonic.patch \
file://0014-Detect-64-bit-MIPS-targets.patch \
file://0015-sync-with-OE-libtool-changes.patch \
+ file://CVE-2018-8945.patch \
"
S = "${WORKDIR}/git"
diff --git a/meta/recipes-devtools/binutils/binutils/CVE-2018-8945.patch b/meta/recipes-devtools/binutils/binutils/CVE-2018-8945.patch
new file mode 100644
index 0000000..6a43168
--- /dev/null
+++ b/meta/recipes-devtools/binutils/binutils/CVE-2018-8945.patch
@@ -0,0 +1,70 @@
+From 95a6d23566165208853a68d9cd3c6eedca840ec6 Mon Sep 17 00:00:00 2001
+From: Nick Clifton <nickc at redhat.com>
+Date: Tue, 8 May 2018 12:51:06 +0100
+Subject: [PATCH] Prevent a memory exhaustion failure when running objdump on a
+ fuzzed input file with corrupt string and attribute sections.
+
+ PR 22809
+ * elf.c (bfd_elf_get_str_section): Check for an excessively large
+ string section.
+ * elf-attrs.c (_bfd_elf_parse_attributes): Issue an error if the
+ attribute section is larger than the size of the file.
+
+Upsteram-Status: Backport
+Affects: Binutils <= 2.30
+CVE: CVE-2018-8945
+Signed-off-by: Armin kuster <akuster at mvista.com>
+---
+ bfd/ChangeLog | 8 ++++++++
+ bfd/elf-attrs.c | 9 +++++++++
+ bfd/elf.c | 1 +
+ 3 files changed, 18 insertions(+)
+
+Index: git/bfd/elf-attrs.c
+===================================================================
+--- git.orig/bfd/elf-attrs.c
++++ git/bfd/elf-attrs.c
+@@ -438,6 +438,15 @@ _bfd_elf_parse_attributes (bfd *abfd, El
+ /* PR 17512: file: 2844a11d. */
+ if (hdr->sh_size == 0)
+ return;
++ if (hdr->sh_size > bfd_get_file_size (abfd))
++ {
++ /* xgettext:c-format */
++ _bfd_error_handler (_("%pB: error: attribute section '%pA' too big: %#llx"),
++ abfd, hdr->bfd_section, (long long) hdr->sh_size);
++ bfd_set_error (bfd_error_invalid_operation);
++ return;
++ }
++
+ contents = (bfd_byte *) bfd_malloc (hdr->sh_size + 1);
+ if (!contents)
+ return;
+Index: git/bfd/elf.c
+===================================================================
+--- git.orig/bfd/elf.c
++++ git/bfd/elf.c
+@@ -298,6 +298,7 @@ bfd_elf_get_str_section (bfd *abfd, unsi
+ /* Allocate and clear an extra byte at the end, to prevent crashes
+ in case the string table is not terminated. */
+ if (shstrtabsize + 1 <= 1
++ || shstrtabsize > bfd_get_file_size (abfd)
+ || bfd_seek (abfd, offset, SEEK_SET) != 0
+ || (shstrtab = (bfd_byte *) bfd_alloc (abfd, shstrtabsize + 1)) == NULL)
+ shstrtab = NULL;
+Index: git/bfd/ChangeLog
+===================================================================
+--- git.orig/bfd/ChangeLog
++++ git/bfd/ChangeLog
+@@ -1,3 +1,11 @@
++2018-05-08 Nick Clifton <nickc at redhat.com>
++
++ PR 22809
++ * elf.c (bfd_elf_get_str_section): Check for an excessively large
++ string section.
++ * elf-attrs.c (_bfd_elf_parse_attributes): Issue an error if the
++ attribute section is larger than the size of the file.
++
+ 2018-02-07 Alan Modra <amodra at gmail.com>
+
+ Revert 2018-01-17 Alan Modra <amodra at gmail.com>
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