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7b99a13f6f
Backport fixes for: * CVE-2024-45774 - Upstream-Status: Backport from https://git.savannah.gnu.org/cgit/grub.git/commit/?id=2c34af908ebf4856051ed29e46d88abd2b20387f * CVE-2024-45775 - Upstream-Status: Backport from https://git.savannah.gnu.org/cgit/grub.git/commit/?id=05be856a8c3aae41f5df90cab7796ab7ee34b872 * CVE-2024-45776 - Upstream-Status: Backport from https://git.savannah.gnu.org/cgit/grub.git/commit/?id=09bd6eb58b0f71ec273916070fa1e2de16897a91 * CVE-2024-45777 - Upstream-Status: Backport from https://git.savannah.gnu.org/cgit/grub.git/commit/?id=b970a5ed967816bbca8225994cd0ee2557bad515 * CVE-2024-45778_CVE-2024-45779 - Upstream-Status: Backport from https://git.savannah.gnu.org/cgit/grub.git/commit/?id=26db6605036bd9e5b16d9068a8cc75be63b8b630 * CVE-2024-45780 - Upstream-Status: Backport from https://git.savannah.gnu.org/cgit/grub.git/commit/?id=0087bc6902182fe5cedce2d034c75a79cf6dd4f3 * CVE-2024-45781 - Upstream-Status: Backport from https://git.savannah.gnu.org/cgit/grub.git/commit/?id=c1a291b01f4f1dcd6a22b61f1c81a45a966d16ba * CVE-2024-45782_CVE-2024-56737 - Upstream-Status: Backport from https://git.savannah.gnu.org/cgit/grub.git/commit/?id=417547c10410b714e43f08f74137c24015f8f4c3 * CVE-2024-45783 - Upstream-Status: Backport from https://git.savannah.gnu.org/cgit/grub.git/commit/?id=f7c070a2e28dfab7137db0739fb8db1dc02d8898 (From OE-Core rev: 1bf2e89c932167b677051234d4e0cc4c52b0ee0c) Signed-off-by: Hitendra Prajapati <hprajapati@mvista.com> Signed-off-by: Steve Sakoman <steve@sakoman.com>
39 lines
1.3 KiB
Diff
39 lines
1.3 KiB
Diff
From c1a291b01f4f1dcd6a22b61f1c81a45a966d16ba Mon Sep 17 00:00:00 2001
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From: B Horn <b@horn.uk>
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Date: Sun, 12 May 2024 02:03:33 +0100
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Subject: [PATCH 2/2] fs/ufs: Fix a heap OOB write
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grub_strcpy() was used to copy a symlink name from the filesystem
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image to a heap allocated buffer. This led to a OOB write to adjacent
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heap allocations. Fix by using grub_strlcpy().
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Fixes: CVE-2024-45781
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Reported-by: B Horn <b@horn.uk>
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Signed-off-by: B Horn <b@horn.uk>
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Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
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CVE: CVE-2024-45781
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Upstream-Status: Backport [https://git.savannah.gnu.org/cgit/grub.git/commit/?id=c1a291b01f4f1dcd6a22b61f1c81a45a966d16ba]
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Signed-off-by: Hitendra Prajapati <hprajapati@mvista.com>
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---
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grub-core/fs/ufs.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/grub-core/fs/ufs.c b/grub-core/fs/ufs.c
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index 34a698b..4727266 100644
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--- a/grub-core/fs/ufs.c
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+++ b/grub-core/fs/ufs.c
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@@ -463,7 +463,7 @@ grub_ufs_lookup_symlink (struct grub_ufs_data *data, int ino)
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/* Check against zero is paylindromic, no need to swap. */
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if (data->inode.nblocks == 0
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&& INODE_SIZE (data) <= sizeof (data->inode.symlink))
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- grub_strcpy (symlink, (char *) data->inode.symlink);
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+ grub_strlcpy (symlink, (char *) data->inode.symlink, sz);
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else
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{
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if (grub_ufs_read_file (data, 0, 0, 0, sz, symlink) < 0)
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--
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2.25.1
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