Michael Chang
c90e5054ec
* 0001-lib-crypto-Introduce-new-HMAC-functions-to-reuse-buf.patch * 0002-lib-pbkdf2-Optimize-PBKDF2-by-reusing-HMAC-handle.patch * 0001-kern-misc-Implement-faster-grub_memcpy-for-aligned-b.patch OBS-URL: https://build.opensuse.org/package/show/Base:System/grub2?expand=0&rev=561
38 lines
1.3 KiB
Diff
38 lines
1.3 KiB
Diff
From 0f62a673fe00e83984810b7ec61b2d9a0bb8b9d4 Mon Sep 17 00:00:00 2001
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From: B Horn <b@horn.uk>
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Date: Thu, 18 Apr 2024 20:29:39 +0100
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Subject: [PATCH 17/20] commands/minicmd: Block the dump command in lockdown
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mode
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The dump enables a user to read memory which should not be possible
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in lockdown mode.
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Fixes: CVE-2025-1118
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Reported-by: B Horn <b@horn.uk>
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Reported-by: Jonathan Bar Or <jonathanbaror@gmail.com>
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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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---
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grub-core/commands/minicmd.c | 4 ++--
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1 file changed, 2 insertions(+), 2 deletions(-)
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diff --git a/grub-core/commands/minicmd.c b/grub-core/commands/minicmd.c
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index fa498931ed..903af33131 100644
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--- a/grub-core/commands/minicmd.c
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+++ b/grub-core/commands/minicmd.c
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@@ -203,8 +203,8 @@ GRUB_MOD_INIT(minicmd)
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grub_register_command ("help", grub_mini_cmd_help,
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0, N_("Show this message."));
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cmd_dump =
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- grub_register_command ("dump", grub_mini_cmd_dump,
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- N_("ADDR [SIZE]"), N_("Show memory contents."));
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+ grub_register_command_lockdown ("dump", grub_mini_cmd_dump,
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+ N_("ADDR [SIZE]"), N_("Show memory contents."));
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cmd_rmmod =
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grub_register_command ("rmmod", grub_mini_cmd_rmmod,
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N_("MODULE"), N_("Remove a module."));
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--
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2.48.1
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