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binutils: fix CVE-2017-7209 in readelf 

CVE: CVE-2017-7209

[BZ 21135] -- https://sourceware.org/bugzilla/show_bug.cgi?id=21135

PR binutils/21135: Fix invalid read of section contents whilst processing
a corrupt binary.

(From OE-Core rev: 2df642ca0a1e4a4e6616729018cf32d2108cabb2)

(From OE-Core rev: b262000162cb4e18421dd85bf5216c9fa3bdbf15)

Signed-off-by: Yuanjie Huang <yuanjie.huang@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Yuanjie Huang 2017-05-25 19:40:40 -07:00 committed by Richard Purdie
parent 7d7ac87831
commit e28778ee72
2 changed files with 63 additions and 0 deletions
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1
meta/recipes-devtools/binutils/binutils-2.28.inc
View File

@ -41,6 +41,7 @@ SRC_URI = "\
file://0018-PR-21409-segfault-in-_bfd_dwarf2_find_nearest_line.patch \
file://CVE-2017-6969.patch \
file://CVE-2017-6969_2.patch \
file://CVE-2017-7209.patch \
"
S = "${WORKDIR}/git"

62
meta/recipes-devtools/binutils/binutils/CVE-2017-7209.patch Normal file
View File

@ -0,0 +1,62 @@
From b2706ceadac7239e7b02d43f05100fc6538b0d65 Mon Sep 17 00:00:00 2001
From: Nick Clifton <nickc@redhat.com>
Date: Mon, 13 Feb 2017 15:04:37 +0000
Subject: Fix invalid read of section contents whilst processing a corrupt binary.
PR binutils/21135
* readelf.c (dump_section_as_bytes): Handle the case where
uncompress_section_contents returns false.
CVE: CVE-2017-7209
Upstream-Status: Backport[master]
Signed-off-by: Yuanjie Huang <yuanjie.huang@windriver.com>
---
binutils/ChangeLog | 6 ++++++
binutils/readelf.c | 16 ++++++++++++----
2 files changed, 18 insertions(+), 4 deletions(-)
diff --git a/binutils/ChangeLog b/binutils/ChangeLog
index 53352c1801..cf92744c12 100644
--- a/binutils/ChangeLog
+++ b/binutils/ChangeLog
@@ -1,3 +1,9 @@
+2017-02-13 Nick Clifton <nickc@redhat.com>
+
+ PR binutils/21135
+ * readelf.c (dump_section_as_bytes): Handle the case where
+ uncompress_section_contents returns false.
+
2017-02-20 Nick Clifton <nickc@redhat.com>
PR binutils/21156
diff --git a/binutils/readelf.c b/binutils/readelf.c
index 4960491c5c..f0e7b080e8 100644
--- a/binutils/readelf.c
+++ b/binutils/readelf.c
@@ -12803,10 +12803,18 @@ dump_section_as_bytes (Elf_Internal_Shdr * section,
new_size -= 12;
}
- if (uncompressed_size
- && uncompress_section_contents (& start, uncompressed_size,
- & new_size))
- section_size = new_size;
+ if (uncompressed_size)
+ {
+ if (uncompress_section_contents (& start, uncompressed_size,
+ & new_size))
+ section_size = new_size;
+ else
+ {
+ error (_("Unable to decompress section %s\n"),
+ printable_section_name (section));
+ return;
+ }
+ }
}
if (relocate)
--
2.11.0