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ovmf: fix CVE-2024-1298
Backport a fix from upstream to resolve CVE-2024-1298 tianocore/edk2@284dbac Signed-off-by: Hongxu Jia <[email protected]>
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From 63f29c180dd04d13614440740a8795ee422567b8 Mon Sep 17 00:00:00 2001
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From: Hongxu Jia <[email protected]>
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Date: Fri, 22 Nov 2024 17:43:28 +0800
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Subject: [PATCH] MdeModulePkg: Potential UINT32 overflow in S3 ResumeCount
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REF: https://bugzilla.tianocore.org/show_bug.cgi?id=4677
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Attacker able to modify physical memory and ResumeCount.
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System will crash/DoS when ResumeCount reaches its MAX_UINT32.
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Cc: Zhiguang Liu <[email protected]>
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Cc: Dandan Bi <[email protected]>
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Cc: Liming Gao <[email protected]>
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Signed-off-by: Pakkirisamy ShanmugavelX <[email protected]>
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Reviewed-by: Liming Gao <[email protected]>
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CVE: CVE-2024-1298
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Upstream-Status: Backport [https://github.com/tianocore/edk2/commit/284dbac43da752ee34825c8b3f6f9e8281cb5a19]
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Signed-off-by: Hongxu Jia <[email protected]>
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---
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.../FirmwarePerformancePei.c | 12 ++++++++----
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1 file changed, 8 insertions(+), 4 deletions(-)
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diff --git a/MdeModulePkg/Universal/Acpi/FirmwarePerformanceDataTablePei/FirmwarePerformancePei.c b/MdeModulePkg/Universal/Acpi/FirmwarePerformanceDataTablePei/FirmwarePerformancePei.c
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index 2f2b2a80b2..2ba9215226 100644
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--- a/MdeModulePkg/Universal/Acpi/FirmwarePerformanceDataTablePei/FirmwarePerformancePei.c
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+++ b/MdeModulePkg/Universal/Acpi/FirmwarePerformanceDataTablePei/FirmwarePerformancePei.c
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@@ -112,11 +112,15 @@ FpdtStatusCodeListenerPei (
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//
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S3ResumeTotal = MultU64x32 (AcpiS3ResumeRecord->AverageResume, AcpiS3ResumeRecord->ResumeCount);
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AcpiS3ResumeRecord->ResumeCount++;
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- AcpiS3ResumeRecord->AverageResume = DivU64x32 (S3ResumeTotal + AcpiS3ResumeRecord->FullResume, AcpiS3ResumeRecord->ResumeCount);
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+ if (AcpiS3ResumeRecord->ResumeCount > 0) {
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+ AcpiS3ResumeRecord->AverageResume = DivU64x32 (S3ResumeTotal + AcpiS3ResumeRecord->FullResume, AcpiS3ResumeRecord->ResumeCount);
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+ DEBUG ((DEBUG_INFO, "\nFPDT: S3 Resume Performance - AverageResume = 0x%x\n", AcpiS3ResumeRecord->AverageResume));
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+ } else {
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+ DEBUG ((DEBUG_ERROR, "\nFPDT: S3 ResumeCount reaches the MAX_UINT32 value. S3 ResumeCount record reset to Zero."));
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+ }
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- DEBUG ((DEBUG_INFO, "FPDT: S3 Resume Performance - ResumeCount = %d\n", AcpiS3ResumeRecord->ResumeCount));
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- DEBUG ((DEBUG_INFO, "FPDT: S3 Resume Performance - FullResume = %ld\n", AcpiS3ResumeRecord->FullResume));
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- DEBUG ((DEBUG_INFO, "FPDT: S3 Resume Performance - AverageResume = %ld\n", AcpiS3ResumeRecord->AverageResume));
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+ DEBUG ((DEBUG_INFO, "FPDT: S3 Resume Performance - ResumeCount = 0x%x\n", AcpiS3ResumeRecord->ResumeCount));
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+ DEBUG ((DEBUG_INFO, "FPDT: S3 Resume Performance - FullResume = 0x%x\n", AcpiS3ResumeRecord->FullResume));
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//
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// Update S3 Suspend Performance Record.
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--
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2.34.1
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meta/recipes-core/ovmf/ovmf_git.bb

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@@ -54,6 +54,7 @@ SRC_URI = "gitsm://github.com/tianocore/edk2.git;branch=master;protocol=https \
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file://CVE-2022-36765-0002.patch \
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file://CVE-2022-36765-0003.patch \
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file://0001-MdePkg-Fix-overflow-issue-in-BasePeCoffLib.patch \
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file://0001-MdeModulePkg-Potential-UINT32-overflow-in-S3-ResumeC.patch \
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"
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PV = "edk2-stable202202"

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