edk2/edk2-SecurityPkg-RngDxe-Conditionally-install-EFI_RNG_PRO.patch
Miroslav Rezanina 8e51a8153a * Wed Jul 03 2024 Miroslav Rezanina <mrezanin@redhat.com> - 20220126gitbb1bba3d77-13.el8_10.1
- edk2-MdeModulePkg-Change-use-of-EFI_D_-to-DEBUG_.patch [RHEL-21854 RHEL-21856 RHEL-40099]
- edk2-MdeModulePkg-Potential-UINT32-overflow-in-S3-ResumeC.patch [RHEL-21854 RHEL-21856 RHEL-40099]
- edk2-MdePkg-Apply-uncrustify-changes.patch [RHEL-21854 RHEL-21856 RHEL-40099]
- edk2-NetworkPkg-Apply-uncrustify-changes.p2.patch [RHEL-21854 RHEL-21856 RHEL-40099]
- edk2-SecurityPkg-RngDxe-Rename-RdRandGenerateEntropy-to-g.patch [RHEL-21854 RHEL-21856 RHEL-40099]
- edk2-SecurityPkg-RngDxe-Remove-ArchGetSupportedRngAlgorit.patch [RHEL-21854 RHEL-21856 RHEL-40099]
- edk2-SecurityPkg-RngDxe-Documentation-include-parameter-c.patch [RHEL-21854 RHEL-21856 RHEL-40099]
- edk2-SecurityPkg-RngDxe-Check-before-advertising-Cpu-Rng-.patch [RHEL-21854 RHEL-21856 RHEL-40099]
- edk2-SecurityPkg-RngDxe-Add-AArch64-RawAlgorithm-support-.patch [RHEL-21854 RHEL-21856 RHEL-40099]
- edk2-SecurityPkg-RngDxe-Add-debug-warning-for-NULL-PcdCpu.patch [RHEL-21854 RHEL-21856 RHEL-40099]
- edk2-SecurityPkg-RngDxe-Rename-AArch64-RngDxe.c.patch [RHEL-21854 RHEL-21856 RHEL-40099]
- edk2-SecurityPkg-RngDxe-Add-Arm-support-of-RngDxe.patch [RHEL-21854 RHEL-21856 RHEL-40099]
- edk2-SecurityPkg-RngDxe-Correctly-update-mAvailableAlgoAr.patch [RHEL-21854 RHEL-21856 RHEL-40099]
- edk2-SecurityPkg-RngDxe-Conditionally-install-EFI_RNG_PRO.patch [RHEL-21854 RHEL-21856 RHEL-40099]
- edk2-MdeModulePkg-Duplicate-BaseRngLibTimerLib-to-MdeModu.patch [RHEL-21854 RHEL-21856 RHEL-40099]
- edk2-MdePkg-Add-deprecated-warning-to-BaseRngLibTimer.patch [RHEL-21854 RHEL-21856 RHEL-40099]
- edk2-SecurityPkg-SecurityPkg.dec-Move-PcdCpuRngSupportedA.patch [RHEL-21854 RHEL-21856 RHEL-40099]
- edk2-MdePkg-DxeRngLib-Request-raw-algorithm-instead-of-de.patch [RHEL-21854 RHEL-21856 RHEL-40099]
- edk2-MdePkg-Rng-Add-GUID-to-describe-Arm-Rndr-Rng-algorit.patch [RHEL-21854 RHEL-21856 RHEL-40099]
- edk2-MdeModulePkg-Rng-Add-GUID-to-describe-unsafe-Rng-alg.patch [RHEL-21854 RHEL-21856 RHEL-40099]
- edk2-MdePkg-Rng-Add-GetRngGuid-to-RngLib.patch [RHEL-21854 RHEL-21856 RHEL-40099]
- edk2-SecurityPkg-RngDxe-Use-GetRngGuid-when-probing-RngLi.patch [RHEL-21854 RHEL-21856 RHEL-40099]
- edk2-SecurityPkg-RngDxe-Simplify-Rng-algorithm-selection-.patch [RHEL-21854 RHEL-21856 RHEL-40099]
- edk2-NetworkPkg-SECURITY-PATCH-CVE-2023-45237.patch [RHEL-21854 RHEL-21856 RHEL-40099]
- edk2-MdePkg-BaseRngLib-Add-a-smoketest-for-RDRAND-and-che.patch [RHEL-21854 RHEL-21856 RHEL-40099]
- edk2-SecurityPkg-RngDxe-add-rng-test.patch [RHEL-21854 RHEL-21856 RHEL-40099]
- edk2-OvmfPkg-wire-up-RngDxe.patch [RHEL-21854 RHEL-21856 RHEL-40099]
- edk2-CryptoPkg-Test-call-ProcessLibraryConstructorList.patch [RHEL-21854 RHEL-21856 RHEL-40099]
- edk2-MdePkg-X86UnitTestHost-set-rdrand-cpuid-bit.patch [RHEL-21854 RHEL-21856 RHEL-40099]
- edk2-NetworkPkg-TcpDxe-SECURITY-PATCH-CVE-2023-45236.patch [RHEL-21854 RHEL-21856 RHEL-40099]
- edk2-NetworkPkg-TcpDxe-Fixed-system-stuck-on-PXE-boot-flo.patch [RHEL-21854 RHEL-21856 RHEL-40099]
- Resolves: RHEL-21854
  (CVE-2023-45236 edk2: Predictable TCP Initial Sequence Numbers [rhel-8])
- Resolves: RHEL-21856
  (CVE-2023-45237 edk2: Use of a Weak PseudoRandom Number Generator [rhel-8])
- Resolves: RHEL-40099
  (CVE-2024-1298 edk2: Temporary DoS vulnerability [rhel-8.10.z])
2024-07-03 08:35:29 -04:00

80 lines
2.3 KiB
Diff

From e7444d0b84a8fd41aa63ecb083e65fd56b32fd38 Mon Sep 17 00:00:00 2001
From: Jon Maloy <jmaloy@redhat.com>
Date: Sun, 23 Jun 2024 14:21:01 -0400
Subject: [PATCH 14/31] SecurityPkg/RngDxe: Conditionally install
EFI_RNG_PROTOCOL
RH-Author: Jon Maloy <jmaloy@redhat.com>
RH-MergeRequest: 77: UINT32 overflow in S3 ResumeCount and Pixiefail fixes
RH-Jira: RHEL-21854 RHEL-21856 RHEL-40099
RH-Acked-by: Gerd Hoffmann <None>
RH-Commit: [14/31] bc64d4cad6c30353723d674ef9f10eb10aeb1cac
JIRA: https://issues.redhat.com/browse/RHEL-21856
Upstream: Merged
CVE: CVE-2023-45237
commit 75fb0cfc82376906243386514be0e4067d702117
Author: Pierre Gondois <pierre.gondois@arm.com>
Date: Thu Nov 24 17:17:55 2022 +0100
SecurityPkg/RngDxe: Conditionally install EFI_RNG_PROTOCOL
On Arm platforms, the number of available RNG algorithms is
dynamically detected and can be 0 in the absence of FEAT_RNG
and firmware TRNG.
In this case, the EFI_RNG_PROTOCOL should not be installed to
prevent from installing an empty protocol.
Signed-off-by: Pierre Gondois <Pierre.Gondois@arm.com>
[ardb: return EFI_REQUEST_UNLOAD_IMAGE instead of an error]
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Jon Maloy <jmaloy@redhat.com>
---
.../RandomNumberGenerator/RngDxe/RngDxe.c | 19 ++++++++++++++-----
1 file changed, 14 insertions(+), 5 deletions(-)
diff --git a/SecurityPkg/RandomNumberGenerator/RngDxe/RngDxe.c b/SecurityPkg/RandomNumberGenerator/RngDxe/RngDxe.c
index cc2ddfcc06..55e8dd49d0 100644
--- a/SecurityPkg/RandomNumberGenerator/RngDxe/RngDxe.c
+++ b/SecurityPkg/RandomNumberGenerator/RngDxe/RngDxe.c
@@ -63,6 +63,18 @@ RngDriverEntry (
EFI_STATUS Status;
EFI_HANDLE Handle;
+ //
+ // Get the list of available algorithm.
+ //
+ Status = GetAvailableAlgorithms ();
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ if (mAvailableAlgoArrayCount == 0) {
+ return EFI_REQUEST_UNLOAD_IMAGE;
+ }
+
//
// Install UEFI RNG (Random Number Generator) Protocol
//
@@ -74,13 +86,10 @@ RngDriverEntry (
NULL
);
if (EFI_ERROR (Status)) {
- return Status;
+ FreeAvailableAlgorithms ();
}
- //
- // Get the list of available algorithm.
- //
- return GetAvailableAlgorithms ();
+ return Status;
}
/**
--
2.39.3