CVE-2022-36763

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 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.

EDK II is a modern, feature-rich, cross-platform firmware development environment for the UEFI and PI specifications.

Security Fix(es):

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.

(CVE-2022-36763)

EDK II is a modern, feature-rich, cross-platform firmware development environment for the UEFI and PI specifications.

Security Fix(es):

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.

(CVE-2022-36763)

EDK II is a modern, feature-rich, cross-platform firmware development environment for the UEFI and PI specifications.

Security Fix(es):

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.

(CVE-2022-36763)

EDK (Embedded Development Kit) is a project to enable UEFI support for Virtual Machines. This package contains a sample 64-bit UEFI firmware for QEMU and KVM.

Security Fix(es):

• edk2: Buffer overflow when handling Server ID option from a DHCPv6 proxy Advertise message (CVE-2023-45235)

• EDK2: heap buffer overflow in Tcg2MeasureGptTable() (CVE-2022-36763)

• EDK2: heap buffer overflow in Tcg2MeasurePeImage() (CVE-2022-36764)

• EDK2: integer overflow in CreateHob() could lead to HOB OOB R/W (CVE-2022-36765)

• edk2: Integer underflow when processing IA_NA/IA_TA options in a DHCPv6 Advertise message (CVE-2023-45229)

• edk2: Out of Bounds read when handling a ND Redirect message with truncated options (CVE-2023-45231)

• edk2: Infinite loop when parsing unknown options in the Destination Options header (CVE-2023-45232)

• edk2: Infinite loop when parsing a PadN option in the Destination Options header (CVE-2023-45233)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes:

For detailed information on changes in this release, see the Rocky Linux 8.10 Release Notes linked from the References section.

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.

EDK (Embedded Development Kit) is a project to enable UEFI support for Virtual Machines. This package contains a sample 64-bit UEFI firmware for QEMU and KVM.

Security Fix(es):

• edk2: Buffer overflow when handling Server ID option from a DHCPv6 proxy Advertise message (CVE-2023-45235)
• EDK2: heap buffer overflow in Tcg2MeasureGptTable() (CVE-2022-36763)
• EDK2: heap buffer overflow in Tcg2MeasurePeImage() (CVE-2022-36764)
• edk2: Integer underflow when processing IA_NA/IA_TA options in a DHCPv6 Advertise message (CVE-2023-45229)
• edk2: Out of Bounds read when handling a ND Redirect message with truncated options (CVE-2023-45231)
• edk2: Infinite loop when parsing unknown options in the Destination Options header (CVE-2023-45232)
• edk2: Infinite loop when parsing a PadN option in the Destination Options header (CVE-2023-45233)
• openssl: Excessive time spent checking DH keys and parameters (CVE-2023-3446)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes:

For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section.

EDK (Embedded Development Kit) is a project to enable UEFI support for Virtual Machines. This package contains a sample 64-bit UEFI firmware for QEMU and KVM.

Security Fix(es):

• edk2: Buffer overflow when handling Server ID option from a DHCPv6 proxy Advertise message (CVE-2023-45235)
• EDK2: heap buffer overflow in Tcg2MeasureGptTable() (CVE-2022-36763)
• EDK2: heap buffer overflow in Tcg2MeasurePeImage() (CVE-2022-36764)
• EDK2: integer overflow in CreateHob() could lead to HOB OOB R/W (CVE-2022-36765)
• edk2: Integer underflow when processing IA_NA/IA_TA options in a DHCPv6 Advertise message (CVE-2023-45229)
• edk2: Out of Bounds read when handling a ND Redirect message with truncated options (CVE-2023-45231)
• edk2: Infinite loop when parsing unknown options in the Destination Options header (CVE-2023-45232)
• edk2: Infinite loop when parsing a PadN option in the Destination Options header (CVE-2023-45233)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes:

For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section.

• CVE-2022-36763: fix heap buffer overflow in TPM2 measure boot library when processing GPT partition tables
• CVE-2022-36764: fix heap buffer overflow in TPM measure boot library when calculating PE image event size
• CVE-2022-36765: fix integer overflow in CreateHob() function that could lead to undersized HOB allocation and out-of-bounds memory access
• Refactoring: fix symbol collision between TPM libraries introduced by CVE-2022-36763 and CVE-2022-36764 patches

These are all security issues fixed in the ovmf-202308-9.1 package on the GA media of openSUSE Tumbleweed.

EDK (Embedded Development Kit) is a project to enable UEFI support for Virtual Machines. This package contains a sample 64-bit UEFI firmware for QEMU and KVM.

Security Fix(es):

• edk2: Buffer overflow when handling Server ID option from a DHCPv6 proxy Advertise message (CVE-2023-45235)

• EDK2: heap buffer overflow in Tcg2MeasureGptTable() (CVE-2022-36763)

• EDK2: heap buffer overflow in Tcg2MeasurePeImage() (CVE-2022-36764)

• edk2: Integer underflow when processing IA_NA/IA_TA options in a DHCPv6 Advertise message (CVE-2023-45229)

• edk2: Out of Bounds read when handling a ND Redirect message with truncated options (CVE-2023-45231)

• edk2: Infinite loop when parsing unknown options in the Destination Options header (CVE-2023-45232)

• edk2: Infinite loop when parsing a PadN option in the Destination Options header (CVE-2023-45233)

• openssl: Excessive time spent checking DH keys and parameters (CVE-2023-3446)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes:

For detailed information on changes in this release, see the Rocky Linux 9.4 Release Notes linked from the References section.

Marc Beatove discovered buffer overflows exit in EDK2. An attacker on the local network could potentially use this to impact availability or possibly cause remote code execution. (CVE-2022-36763, CVE-2022-36764, CVE-2022-36765)

It was discovered that a buffer overflows exists in EDK2's Network Package An attacker on the local network could potentially use these to impact availability or possibly cause remote code execution. (CVE-2023-45230, CVE-2023-45234, CVE-2023-45235)

It was discovered that an out-of-bounds read exists in EDK2's Network Package An attacker on the local network could potentially use this to impact confidentiality. (CVE-2023-45231)

It was discovered that infinite-loops exists in EDK2's Network Package An attacker on the local network could potentially use these to impact availability. (CVE-2023-45232, CVE-2023-45233)

Mate Kukri discovered that an insecure default to allow UEFI Shell in EDK2 was left enabled in Ubuntu's EDK2. An attacker could use this to bypass Secure Boot. (CVE-2023-48733)