CVE-2022-36765

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

(CVE-2022-36765)

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 CreateHob() function, allowing a user to trigger a integer overflow to 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 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.

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: integer overflow in CreateHob() could lead to HOB OOB R/W (CVE-2022-36765)
• edk2: Predictable TCP Initial Sequence Numbers (CVE-2023-45236)
• edk2: Use of a Weak PseudoRandom Number Generator (CVE-2023-45237)

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.

• 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

This update for ovmf fixes the following issues:

• CVE-2022-36765: Fixed integer overflow to buffer overflow via local network vulnerability (bsc#1218680).

This update for ovmf fixes the following issues:

• CVE-2022-36765: Fixed integer overflow to buffer overflow via local network vulnerability (bsc#1218680).

This update for ovmf fixes the following issues:

• CVE-2022-36765: Fixed integer overflow to buffer overflow via local network vulnerability (bsc#1218680).

This update for ovmf fixes the following issues:

• CVE-2022-36765: Fixed integer overflow to buffer overflow via local network vulnerability (bsc#1218680).

This update for ovmf fixes the following issues:

• CVE-2022-36765: Fixed integer overflow to buffer overflow via local network vulnerability (bsc#1218680).

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)