Heap Buffer Overflow in Tcg2MeasurePeImage

EDK2 is susceptible to a vulnerability in the Tcg2MeasurePeImage() function, allowing a user to trigger a heap buffer overflow via a local network. Successful exploitation of this vulnerability may result in a compromise of confidentiality, integrity, and/or availability.

Heap Buffer Overflow in Tcg2MeasureGptTable

EDK2 is susceptible to a vulnerability in the Tcg2MeasureGptTable() function, allowing a user to trigger a heap buffer overflow via a local network. Successful exploitation of this vulnerability may result in a compromise of confidentiality, integrity, and/or availability.

edk2: integer underflow in SmmEntryPoint function leads to potential SMM privilege escalation

Existing CommBuffer checks in SmmEntryPoint will not catch underflow when computing BufferSize.

A BIOS bug in firmware for a particular PC model leaves the Platform authorization value empty. This can be used to permanently brick the TPM in multiple ways, as well as to non-permanently DoS the system.

edk2: remote buffer overflow in IScsiHexToBin function in NetworkPkg/IScsiDxe

NetworkPkg/IScsiDxe has remotely exploitable buffer overflows.

BootPerformanceTable pointer is read from an NVRAM variable in PEI. Recommend setting PcdFirmwarePerformanceDataTableS3Support to FALSE.

An insecure default to allow UEFI Shell in EDK2 was left enabled in Ubuntu's EDK2. This allows an OS-resident attacker to bypass Secure Boot.

An insecure default to allow UEFI Shell in EDK2 was left enabled in LXD. This allows an OS-resident attacker to bypass Secure Boot.

edk2: encrypted private key in the IpSecDxe.efi present potential security risks

Example EDK2 encrypted private key in the IpSecDxe.efi present potential security risks.

edk2: possible heap corruption with LzmaUefiDecompressGetInfo

A heap overflow in LzmaUefiDecompressGetInfo function in EDK II.

edk2: unlimited FV recursion, round 2

An unlimited recursion in DxeCore in EDK II.

edk2: double-unmap issue in SdMmcCreateTrb function in MdeModulePkg/Bus/Pci/SdMmcPciHcDxe/SdMmcPciHci.c

Logic issue EDK II may allow an unauthenticated user to potentially enable denial of service via adjacent access.

edk2: potential use-after-free due to the original configuration runtime memory is freed but it is still exposed to the OS runtime

Use after free vulnerability in EDK II may allow an authenticated user to potentially enable escalation of privilege, information disclosure and/or denial of service via adjacent access.

edk2: NULL pointer dereference in AuthenticodeVerify()

Null pointer dereference in Tianocore EDK2 may allow an authenticated user to potentially enable escalation of privilege via local access.

edk2: DxeImageVerificationHandler() fails open in case of dbx signature check

Logic issue in DxeImageVerificationHandler() for EDK II may allow an authenticated user to potentially enable escalation of privilege via local access.

edk2: numeric truncation in MdeModulePkg/PiDxeS3BootScriptLib

Integer truncation in EDK II may allow an authenticated user to potentially enable escalation of privilege via local access.

edk2: DxeImageVerificationHandler integer overflow leads to endless loop

Integer overflow in DxeImageVerificationHandler() EDK II may allow an authenticated user to potentially enable denial of service via local access.

edk2: memory leak in ArpOnFrameRcvdDpc

Uncontrolled resource consumption in EDK II may allow an unauthenticated user to potentially enable denial of service via network access.

edk2: invalid server certificate accepted in HTTPS-over-IPv6 boot

Improper authentication in EDK II may allow a privileged user to potentially enable information disclosure via network access.

edk2: Insufficient input validation in MdeModulePkg may lead to privilege escalation

Insufficient input validation in MdeModulePkg in EDKII may allow an unauthenticated user to potentially enable escalation of privilege, denial of service and/or information disclosure via physical access.