54 строки
1.8 KiB
Diff
54 строки
1.8 KiB
Diff
From 3b06afcf3514c63bfa2d55c1aade7cd1e684f056 Mon Sep 17 00:00:00 2001
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From: Rachel <rachelmenge@microsoft.com>
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Date: Thu, 9 Feb 2023 01:07:12 -0500
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Subject: [PATCH] Patch binutils for CVE-2022-4285
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From: Nick Clifton <nickc@redhat.com>
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Date: Wed, 19 Oct 2022 14:09:12 +0000 (+0100)
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Subject: Fix an illegal memory access when parsing an ELF file containing corrupt symbol versi...
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X-Git-Tag: gdb-13-branchpoint~796
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X-Git-Url: https://sourceware.org/git/?p=binutils-gdb.git;a=commitdiff_plain;h=5c831a3c7f3ca98d6aba1200353311e1a1f84c70;hp=feab6abfe23b5b1724cb3c00059254e8f1bc5225
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Fix an illegal memory access when parsing an ELF file containing corrupt symbol version information.
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PR 29699
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* elf.c (_bfd_elf_slurp_version_tables): Fail if the sh_info field
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of the section header is zero
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---
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bfd/ChangeLog | 6 ++++++
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bfd/elf.c | 4 +++-
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2 files changed, 9 insertions(+), 1 deletion(-)
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diff --git a/bfd/ChangeLog b/bfd/ChangeLog
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index 75ca29c0..575e28cf 100644
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--- a/bfd/ChangeLog
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+++ b/bfd/ChangeLog
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@@ -1,3 +1,9 @@
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+2022-10-19 Nick Clifton <nickc@redhat.com>
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+
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+ PR 29699
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+ * elf.c (_bfd_elf_slurp_version_tables): Fail if the sh_info field
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+ of the section header is zero.
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+
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2021-07-18 Nick Clifton <nickc@redhat.com>
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* 2.37 release.
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diff --git a/bfd/elf.c b/bfd/elf.c
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index de5abafa..eddc6304 100644
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--- a/bfd/elf.c
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+++ b/bfd/elf.c
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@@ -8751,7 +8751,9 @@ _bfd_elf_slurp_version_tables (bfd *abfd, bool default_imported_symver)
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bfd_set_error (bfd_error_file_too_big);
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goto error_return_verref;
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}
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- elf_tdata (abfd)->verref = (Elf_Internal_Verneed *) bfd_alloc (abfd, amt);
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+ if (amt == 0)
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+ goto error_return_verref;
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+ elf_tdata (abfd)->verref = (Elf_Internal_Verneed *) bfd_zalloc (abfd, amt);
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if (elf_tdata (abfd)->verref == NULL)
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goto error_return_verref;
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--
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2.25.1
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