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binutils: fix CVE-2023-1972

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Backport a patch from upstream to fix CVE-2023-1972.

(From OE-Core rev: ebb15853372d28808189fc417409229ed051ad57)

Signed-off-by: Ross Burton <ross.burton@arm.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
(cherry picked from commit 10d63933e3a30bfac2f6cec896460c22e04baadd)
Signed-off-by: Steve Sakoman <steve@sakoman.com>
This commit is contained in:
Ross Burton
2023-06-05 17:24:13 +01:00
committed by Steve Sakoman
parent 31dd418207
commit 6cd353ffe7
2 changed files with 44 additions and 0 deletions
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1
meta/recipes-devtools/binutils/binutils-2.40.inc
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@@ -34,5 +34,6 @@ SRC_URI = "\
file://0013-Define-alignof-using-_Alignof-when-using-C11-or-newe.patch \
file://0015-Remove-duplicate-pe-dll.o-entry-deom-targ_extra_ofil.patch \
file://0016-CVE-2023-25586.patch \
file://0001-Fix-an-illegal-memory-access-when-an-accessing-a-zer.patch \
"
S = "${WORKDIR}/git"

43
meta/recipes-devtools/binutils/binutils/0001-Fix-an-illegal-memory-access-when-an-accessing-a-zer.patch Normal file
View File

@@ -0,0 +1,43 @@
From c22d38baefc5a7a1e1f5cdc9dbb556b1f0ec5c57 Mon Sep 17 00:00:00 2001
From: Nick Clifton <nickc@redhat.com>
Date: Thu, 30 Mar 2023 10:10:09 +0100
Subject: [PATCH] Fix an illegal memory access when an accessing a
zer0-lengthverdef table.
PR 30285
* elf.c (_bfd_elf_slurp_version_tables): Fail if no version definitions are allocated.
CVE: CVE-2023-1972
Upstream-Status: Backport
Signed-off-by: Ross Burton <ross.burton@arm.com>
---
bfd/ChangeLog | 6 ++++++
bfd/elf.c | 5 +++++
2 files changed, 11 insertions(+)
diff --git a/bfd/elf.c b/bfd/elf.c
index 027d0143735..185028cbd97 100644
--- a/bfd/elf.c
+++ b/bfd/elf.c
@@ -9030,6 +9030,9 @@ _bfd_elf_slurp_version_tables (bfd *abfd, bool default_imported_symver)
bfd_set_error (bfd_error_file_too_big);
goto error_return_verdef;
}
+
+ if (amt == 0)
+ goto error_return_verdef;
elf_tdata (abfd)->verdef = (Elf_Internal_Verdef *) bfd_zalloc (abfd, amt);
if (elf_tdata (abfd)->verdef == NULL)
goto error_return_verdef;
@@ -9133,6 +9136,8 @@ _bfd_elf_slurp_version_tables (bfd *abfd, bool default_imported_symver)
bfd_set_error (bfd_error_file_too_big);
goto error_return;
}
+ if (amt == 0)
+ goto error_return;
elf_tdata (abfd)->verdef = (Elf_Internal_Verdef *) bfd_zalloc (abfd, amt);
if (elf_tdata (abfd)->verdef == NULL)
goto error_return;
--
2.34.1