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CVE-2023-45231

Out-of-Bounds Read in EDK II Network Package

6.5 MediumFix available

EDK2's Network Package is susceptible to an out-of-bounds read vulnerability when processing  Neighbor Discovery Redirect message. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Confidentiality.

Attack profile

How easy it is to exploit

Attack vector
Adjacent network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
None
Availability
None

Exploit likelihood

0.85%Up 0.8 points since Jan 24, 2024
90%50%10%1%

What each source reports

CVE List Score used 6.5

Out-of-Bounds Read in EDK II Network Package

EDK2's Network Package is susceptible to an out-of-bounds read vulnerability when processing  Neighbor Discovery Redirect message. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Confidentiality.

Record
CVE-2023-45231
CVSS 3.1
6.5 MediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness
CWE-125
Updated
2026-11-02
EUVDEUVD-2023-49537 6.5

EDK2's Network Package is susceptible to an out-of-bounds read vulnerability when processing  Neighbor Discovery Redirect message. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Confidentiality.

Record
EUVD-2023-49537
CVSS 3.1
6.5 MediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Updated
2026-11-02
GitHub AdvisoriesGHSA-pr27-mhpp-2ccr 6.5

EDK2's Network Package is susceptible to an out-of-bounds read vulnerability when processing ...

EDK2's Network Package is susceptible to an out-of-bounds read vulnerability when processing  Neighbor Discovery Redirect message. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Confidentiality.

Record
GHSA-pr27-mhpp-2ccr
CVSS 3.1
6.5 MediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness
CWE-125
Updated
2026-11-02
NVD 6.5

EDK2's Network Package is susceptible to an out-of-bounds read vulnerability when processing  Neighbor Discovery Redirect message. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Confidentiality.

Record
CVE-2023-45231
CVSS 3.1
6.5 MediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness
CWE-125
Updated
2026-11-02
OSVAZL-38242 6.5

CVE-2023-45231 affecting package edk2 for versions less than 20240223gitedc6681206c1-1

EDK2's Network Package is susceptible to an out-of-bounds read vulnerability when processing  Neighbor Discovery Redirect message. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Confidentiality.

Record
AZL-38242
CVSS 3.1
6.5 MediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Updated
2026-11-02
OSVAZL-39337 6.5

CVE-2023-45231 affecting package edk2 for versions less than 20230301gitf80f052277c8-42

EDK2's Network Package is susceptible to an out-of-bounds read vulnerability when processing  Neighbor Discovery Redirect message. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Confidentiality.

Record
AZL-39337
CVSS 3.1
6.5 MediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Updated
2026-11-02
Show 30 moreShow less
OSVAZL-39562 6.5

CVE-2023-45231 affecting package hvloader for versions less than 1.0.1-9

EDK2's Network Package is susceptible to an out-of-bounds read vulnerability when processing  Neighbor Discovery Redirect message. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Confidentiality.

Record
AZL-39562
CVSS 3.1
6.5 MediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Updated
2026-11-02
OSVBELL-CVE-2023-45231 6.5
Record
BELL-CVE-2023-45231
CVSS 3.1
6.5 MediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Updated
2026-11-02
OSVCVE-2023-45229 6.5

EDK2's Network Package is susceptible to an out-of-bounds read vulnerability when processing the IA_NA or IA_TA option in a DHCPv6 Advertise message. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Confidentiality.

Record
CVE-2023-45229
CVSS 3.1
6.5 MediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Updated
2026-11-02
OSVCVE-2023-45230 8.8

EDK2's Network Package is susceptible to a buffer overflow vulnerability via a long server ID option in DHCPv6 client. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Confidentiality, Integrity and/or Availability.

Record
CVE-2023-45230
CVSS 3.1
8.8 HighCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSV 6.5

EDK2's Network Package is susceptible to an out-of-bounds read vulnerability when processing  Neighbor Discovery Redirect message. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Confidentiality.

Record
CVE-2023-45231
CVSS 3.1
6.5 MediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Updated
2026-11-02
OSVCVE-2023-45232 7.5

EDK2's Network Package is susceptible to an infinite loop vulnerability when parsing unknown options in the Destination Options header of IPv6. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Availability.

Record
CVE-2023-45232
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVCVE-2023-45233 7.5

EDK2's Network Package is susceptible to an infinite lop vulnerability when parsing a PadN option in the Destination Options header of IPv6. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Availability.

Record
CVE-2023-45233
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVCVE-2023-45234 8.8

EDK2's Network Package is susceptible to a buffer overflow vulnerability when processing DNS Servers option from a DHCPv6 Advertise message. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Confidentiality, Integrity and/or Availability.

Record
CVE-2023-45234
CVSS 3.1
8.8 HighCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVCVE-2023-45235 8.8

EDK2's Network Package is susceptible to a buffer overflow vulnerability when

handling Server ID option

from a DHCPv6 proxy Advertise message. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Confidentiality, Integrity and/or Availability.

Record
CVE-2023-45235
CVSS 3.1
8.8 HighCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVCVE-2023-45236 7.5

EDK2's Network Package is susceptible to a predictable TCP Initial Sequence Number. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Confidentiality.

Record
CVE-2023-45236
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Updated
2026-11-02
OSVCVE-2023-45237 7.5

EDK2's Network Package is susceptible to a predictable TCP Initial Sequence Number. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Confidentiality.

Record
CVE-2023-45237
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Updated
2026-11-02
OSVDEBIAN-CVE-2023-45231 6.5

EDK2's Network Package is susceptible to an out-of-bounds read vulnerability when processing  Neighbor Discovery Redirect message. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Confidentiality.

Record
DEBIAN-CVE-2023-45231
CVSS 3.1
6.5 MediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Updated
2026-11-02
OSVOESA-2024-1280 8.3

edk2 security update

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

Security Fix(es):

EDK2's Network Package is susceptible to an out-of-bounds read vulnerability when processing the IA_NA or IA_TA option in a DHCPv6 Advertise message. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Confidentiality.(CVE-2023-45229)

EDK2's Network Package is susceptible to an out-of-bounds read vulnerability when processing  Neighbor Discovery Redirect message. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Confidentiality.(CVE-2023-45231)

EDK2's Network Package is susceptible to a buffer overflow vulnerability when processing DNS Servers option from a DHCPv6 Advertise message. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Confidentiality, Integrity and/or Availability.

(CVE-2023-45234)

Record
OESA-2024-1280
CVSS 3.1
8.3 HighCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:H
Updated
2026-11-02
OSVOESA-2024-1315 8.3

edk2 security update

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 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.

(CVE-2022-36764)

EDK2's Network Package is susceptible to an out-of-bounds read vulnerability when processing the IA_NA or IA_TA option in a DHCPv6 Advertise message. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Confidentiality.(CVE-2023-45229)

EDK2's Network Package is susceptible to a buffer overflow vulnerability via a long server ID option in DHCPv6 client. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Confidentiality, Integrity and/or Availability.

(CVE-2023-45230)

EDK2's Network Package is susceptible to an out-of-bounds read vulnerability when processing  Neighbor Discovery Redirect message. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Confidentiality.(CVE-2023-45231)

EDK2's Network Package is susceptible to an infinite loop vulnerability when parsing unknown options in the Destination Options header of IPv6. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Availability.

(CVE-2023-45232)

EDK2's Network Package is susceptible to an infinite lop vulnerability when parsing a PadN option in the Destination Options header of IPv6. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Availability.

(CVE-2023-45233)

EDK2's Network Package is susceptible to a buffer overflow vulnerability when processing DNS Servers option from a DHCPv6 Advertise message. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Confidentiality, Integrity and/or Availability.

(CVE-2023-45234)

EDK2's Network Package is susceptible to a buffer overflow vulnerability when

handling Server ID option

from a DHCPv6 proxy Advertise message. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Confidentiality, Integrity and/or Availability.

(CVE-2023-45235)

Record
OESA-2024-1315
CVSS 3.1
8.3 HighCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:H
Updated
2026-11-02
OSVRHSA-2024:2264 8.8

Red Hat Security Advisory: edk2 security update

Record
RHSA-2024:2264
CVSS 3.1
8.8 HighCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVRHSA-2024:3017 8.8

Red Hat Security Advisory: edk2 security update

Record
RHSA-2024:3017
CVSS 3.1
8.8 HighCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVRHSA-2024:4419 8.8

Red Hat Security Advisory: edk2 security update

Record
RHSA-2024:4419
CVSS 3.1
8.8 HighCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVRLSA-2024:3017 8.8

Important: edk2 security update

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.

Record
RLSA-2024:3017
CVSS 3.1
8.8 HighCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVUBUNTU-CVE-2023-45231 6.5

EDK2's Network Package is susceptible to an out-of-bounds read vulnerability when processing  Neighbor Discovery Redirect message. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Confidentiality.

Record
UBUNTU-CVE-2023-45231
CVSS 3.1
6.5 MediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Updated
2026-11-02
OSVALSA-2024:2264 No score

Important: edk2 security update

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.

Record
ALSA-2024:2264
Updated
2026-11-02
OSVALSA-2024:3017 No score

Important: edk2 security update

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.

Record
ALSA-2024:3017
Updated
2026-11-02
OSVCLSA-2025-1763716672 No score

edk2: Fix of 7 CVEs

  • CVE-2023-45229: fix IPv6 malformed option handling to prevent parsing loop
  • CVE-2023-45230: fix DHCPv6 ServerID length validation to prevent buffer overflow
  • CVE-2023-45231: fix IPv6 Redirect bounds checks to avoid out-of-bounds access
  • CVE-2023-45232: fix IPv6 destination option parsing to prevent infinite loop
  • CVE-2023-45233: fix PadN option handling in IPv6 PXE processing to prevent loop
  • CVE-2023-45234: fix DHCPv6 Advertise DNS Servers option parsing to prevent buffer overflow
  • CVE-2023-45235: fix DHCPv6 proxy Advertise ServerID option parsing to prevent buffer overflow
Record
CLSA-2025-1763716672
Updated
2026-11-02
OSVopenSUSE-SU-2024:14199-1 No score

ovmf-202402-1.1 on GA media

These are all security issues fixed in the ovmf-202402-1.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2024:14199-1
Updated
2026-11-02
OSVRLSA-2024:2264 No score

Important: edk2 security update

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.

Record
RLSA-2024:2264
Updated
2026-11-02
OSVSUSE-SU-2025:0407-1 No score

Security update for ovmf

This update for ovmf fixes the following issues:

  • CVE-2023-45229: out-of-bounds read in edk2 when processing IA_NA/IA_TA options in DHCPv6 Advertise messages. (bsc#1218879)
  • CVE-2023-45230: buffer overflow in the DHCPv6 client in edk2 via a long Server ID option. (bsc#1218880)
  • CVE-2023-45231: out-of-bounds read in edk2 when handling a ND Redirect message with truncated options. (bsc#1218881)
  • CVE-2023-45232: infinite loop in edk2 when parsing unknown options in the Destination Options header. (bsc#1218882)
  • CVE-2023-45233: infinite loop in edk2 when parsing PadN options in the Destination Options header. (bsc#1218883)
  • CVE-2023-45234: buffer overflow in edk2 when processing DNS Servers options in a DHCPv6 Advertise message. (bsc#1218884)
  • CVE-2023-45235: buffer overflow in edk2 when handling the Server ID option in a DHCPv6 proxy Advertise message. (bsc#1218885)
  • CVE-2023-45236: predictable TCP Initial Sequence Numbers in edk2 network packages. (bsc#1218886)
  • CVE-2023-45237: use of a weak pseudorandom number generator in edk2. (bsc#1218887)
Record
SUSE-SU-2025:0407-1
Updated
2026-11-02
OSVSUSE-SU-2025:0421-1 No score

Security update for ovmf

This update for ovmf fixes the following issues:

  • CVE-2023-45229: out-of-bounds read in edk2 when processing IA_NA/IA_TA options in DHCPv6 Advertise messages. (bsc#1218879)
  • CVE-2023-45230: buffer overflow in the DHCPv6 client in edk2 via a long Server ID option. (bsc#1218880)
  • CVE-2023-45231: out-of-bounds read in edk2 when handling a ND Redirect message with truncated options. (bsc#1218881)
  • CVE-2023-45232: infinite loop in edk2 when parsing unknown options in the Destination Options header. (bsc#1218882)
  • CVE-2023-45233: infinite loop in edk2 when parsing PadN options in the Destination Options header. (bsc#1218883)
  • CVE-2023-45234: buffer overflow in edk2 when processing DNS Servers options in a DHCPv6 Advertise message. (bsc#1218884)
  • CVE-2023-45235: buffer overflow in edk2 when handling the Server ID option in a DHCPv6 proxy Advertise message. (bsc#1218885)
  • CVE-2023-45236: predictable TCP Initial Sequence Numbers in edk2 network packages. (bsc#1218886)
  • CVE-2023-45237: use of a weak pseudorandom number generator in edk2. (bsc#1218887)
Record
SUSE-SU-2025:0421-1
Updated
2026-11-02
OSVSUSE-SU-2025:0503-1 No score

Security update for ovmf

This update for ovmf fixes the following issues:

  • CVE-2024-1298: potential division-by-zero crash in edk2 due to UINT32 overflow in S3 ResumeCount. (bsc#1225889)
  • CVE-2023-45229: out-of-bounds read in edk2 when processing IA_NA/IA_TA options in DHCPv6 Advertise messages. (bsc#1218879)
  • CVE-2023-45230: buffer overflow in the DHCPv6 client in edk2 via a long Server ID option. (bsc#1218880)
  • CVE-2023-45231: out-of-bounds read in edk2 when handling a ND Redirect message with truncated options. (bsc#1218881)
  • CVE-2023-45232: infinite loop in edk2 when parsing unknown options in the Destination Options header. (bsc#1218882)
  • CVE-2023-45233: infinite loop in edk2 when parsing PadN options in the Destination Options header. (bsc#1218883)
  • CVE-2023-45234: buffer overflow in edk2 when processing DNS Servers options in a DHCPv6 Advertise message. (bsc#1218884)
  • CVE-2023-45235: buffer overflow in edk2 when handling the Server ID option in a DHCPv6 proxy Advertise message. (bsc#1218885)
  • CVE-2023-45236: predictable TCP Initial Sequence Numbers in edk2 network packages. (bsc#1218886)
  • CVE-2023-45237: use of a weak pseudorandom number generator in edk2. (bsc#1218887)
Record
SUSE-SU-2025:0503-1
Updated
2026-11-02
OSVSUSE-SU-2025:0752-1 No score

Security update for ovmf

This update for ovmf fixes the following issues:

  • CVE-2023-45229: out-of-bounds read in edk2 when processing IA_NA/IA_TA options in DHCPv6 Advertise messages. (bsc#1218879)
  • CVE-2023-45230: buffer overflow in the DHCPv6 client in edk2 via a long Server ID option. (bsc#1218880)
  • CVE-2023-45231: out-of-bounds read in edk2 when handling a ND Redirect message with truncated options. (bsc#1218881)
  • CVE-2023-45232: infinite loop in edk2 when parsing unknown options in the Destination Options header. (bsc#1218882)
  • CVE-2023-45233: infinite loop in edk2 when parsing PadN options in the Destination Options header. (bsc#1218883)
  • CVE-2023-45234: buffer overflow in edk2 when processing DNS Servers options in a DHCPv6 Advertise message. (bsc#1218884)
  • CVE-2023-45235: buffer overflow in edk2 when handling the Server ID option in a DHCPv6 proxy Advertise message. (bsc#1218885)
Record
SUSE-SU-2025:0752-1
Updated
2026-11-02
OSVSUSE-SU-2026:0196-1 No score

Security update for ovmf

This update for ovmf fixes the following issues:

  • CVE-2023-45231: Fixed out of bounds read when handling a ND Redirect message with truncated options (bsc#1218881).
  • CVE-2023-45232: Fixed infinite loop when parsing unknown options in the Destination Options header (bsc#1218882).
  • CVE-2023-45233: Fixed infinite loop when parsing a PadN option in the Destination Options header (bsc#1218883).
  • CVE-2023-45234: Fixed buffer overflow when processing DNS Servers option in a DHCPv6 Advertise message (bsc#1218884).
  • CVE-2023-45235: Fixed buffer overflow when handling Server ID option from a DHCPv6 proxy Advertise message (bsc#1218885).
Record
SUSE-SU-2026:0196-1
Updated
2026-11-02
OSVUSN-6638-1 No score

edk2 vulnerabilities

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)

Record
USN-6638-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
edk2-aarch64
AlmaLinux:9
before 20231122-6.el9
20231122-6.el9
edk2-ovmf
AlmaLinux:9
before 20231122-6.el9
20231122-6.el9
edk2-tools
AlmaLinux:9
before 20231122-6.el9
20231122-6.el9
edk2-tools-doc
AlmaLinux:9
before 20231122-6.el9
20231122-6.el9
edk2-aarch64
AlmaLinux:8
before 20220126gitbb1bba3d77-13.el8_10
20220126gitbb1bba3d77-13.el8_10
edk2-ovmf
AlmaLinux:8
before 20220126gitbb1bba3d77-13.el8_10
20220126gitbb1bba3d77-13.el8_10
edk2
Azure Linux:3
before 20240223gitedc6681206c1-1
20240223gitedc6681206c1-1
edk2
Azure Linux:2
before 20230301gitf80f052277c8-42
20230301gitf80f052277c8-42
hvloader
Azure Linux:2
before 1.0.1-9
1.0.1-9
edk2
Alpaquita:23
0.0.202208-r0 and later None known
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Affected packages
PackageAffectedFixed
edk2
Alpaquita:stream
0.0.202302-r0 and later None known
edk2-aarch64
TuxCare:AlmaLinux:9.2
before 20221207gitfff6d81270b5-9.el9_2.tuxcare.els2
20221207gitfff6d81270b5-9.el9_2.tuxcare.els2
edk2-ovmf
TuxCare:AlmaLinux:9.2
before 20221207gitfff6d81270b5-9.el9_2.tuxcare.els2
20221207gitfff6d81270b5-9.el9_2.tuxcare.els2
edk2-tools
TuxCare:AlmaLinux:9.2
before 20221207gitfff6d81270b5-9.el9_2.tuxcare.els2
20221207gitfff6d81270b5-9.el9_2.tuxcare.els2
edk2-tools-doc
TuxCare:AlmaLinux:9.2
before 20221207gitfff6d81270b5-9.el9_2.tuxcare.els2
20221207gitfff6d81270b5-9.el9_2.tuxcare.els2
edk2
Debian:12
before 2022.11-6+deb12u1, plus listed versions
2022.11-6
2022.11-6+deb12u1
edk2
Debian:13
before 2023.11-6
2023.11-6
edk2
Debian:14
before 2023.11-6
2023.11-6
edk2
Debian:11
before 2020.11-2+deb11u3, plus listed versions
2020.11-22020.11-2+deb11u12020.11-2+deb11u2
2020.11-2+deb11u3
edk2
openEuler:20.03-LTS-SP1
before 202002-20.oe1
202002-20.oe1
edk2
openEuler:22.03-LTS
before 202011-16.oe2203sp3
202011-16.oe2203sp3
edk2
openEuler:22.03-LTS-SP1
before 202011-16.oe2203sp1
202011-16.oe2203sp1
edk2
openEuler:22.03-LTS-SP2
before 202011-16.oe2203sp2
202011-16.oe2203sp2
edk2
openEuler:22.03-LTS-SP3
before 202011-16.oe2203sp3
202011-16.oe2203sp3
edk2
openEuler:20.03-LTS-SP4
before 202002-19.oe2003sp4
202002-19.oe2003sp4
edk2
Red Hat:enterprise_linux:9::appstream
before 0:20231122-6.el9
0:20231122-6.el9
edk2-aarch64
Red Hat:enterprise_linux:9::appstream
before 0:20231122-6.el9
0:20231122-6.el9
edk2-ovmf
Red Hat:enterprise_linux:9::appstream
before 0:20231122-6.el9
0:20231122-6.el9
edk2-aarch64
Red Hat:enterprise_linux:9::crb
before 0:20231122-6.el9
0:20231122-6.el9
edk2-debugsource
Red Hat:enterprise_linux:9::crb
before 0:20231122-6.el9
0:20231122-6.el9
edk2-ovmf
Red Hat:enterprise_linux:9::crb
before 0:20231122-6.el9
0:20231122-6.el9
edk2-tools
Red Hat:enterprise_linux:9::crb
before 0:20231122-6.el9
0:20231122-6.el9
edk2-tools-debuginfo
Red Hat:enterprise_linux:9::crb
before 0:20231122-6.el9
0:20231122-6.el9
edk2-tools-doc
Red Hat:enterprise_linux:9::crb
before 0:20231122-6.el9
0:20231122-6.el9
edk2
Red Hat:enterprise_linux:8::appstream
before 0:20220126gitbb1bba3d77-13.el8_10
0:20220126gitbb1bba3d77-13.el8_10
edk2-aarch64
Red Hat:enterprise_linux:8::appstream
before 0:20220126gitbb1bba3d77-13.el8_10
0:20220126gitbb1bba3d77-13.el8_10
edk2-ovmf
Red Hat:enterprise_linux:8::appstream
before 0:20220126gitbb1bba3d77-13.el8_10
0:20220126gitbb1bba3d77-13.el8_10
edk2
Red Hat:rhel_eus:9.2::appstream
before 0:20221207gitfff6d81270b5-9.el9_2.3
0:20221207gitfff6d81270b5-9.el9_2.3
edk2-aarch64
Red Hat:rhel_eus:9.2::appstream
before 0:20221207gitfff6d81270b5-9.el9_2.3
0:20221207gitfff6d81270b5-9.el9_2.3
edk2-ovmf
Red Hat:rhel_eus:9.2::appstream
before 0:20221207gitfff6d81270b5-9.el9_2.3
0:20221207gitfff6d81270b5-9.el9_2.3
edk2-aarch64
Red Hat:rhel_eus:9.2::crb
before 0:20221207gitfff6d81270b5-9.el9_2.3
0:20221207gitfff6d81270b5-9.el9_2.3
edk2-debugsource
Red Hat:rhel_eus:9.2::crb
before 0:20221207gitfff6d81270b5-9.el9_2.3
0:20221207gitfff6d81270b5-9.el9_2.3
edk2-ovmf
Red Hat:rhel_eus:9.2::crb
before 0:20221207gitfff6d81270b5-9.el9_2.3
0:20221207gitfff6d81270b5-9.el9_2.3
edk2-tools
Red Hat:rhel_eus:9.2::crb
before 0:20221207gitfff6d81270b5-9.el9_2.3
0:20221207gitfff6d81270b5-9.el9_2.3
edk2-tools-debuginfo
Red Hat:rhel_eus:9.2::crb
before 0:20221207gitfff6d81270b5-9.el9_2.3
0:20221207gitfff6d81270b5-9.el9_2.3
edk2-tools-doc
Red Hat:rhel_eus:9.2::crb
before 0:20221207gitfff6d81270b5-9.el9_2.3
0:20221207gitfff6d81270b5-9.el9_2.3
edk2
Rocky Linux:9
before 0:20231122-6.el9
0:20231122-6.el9
edk2
Rocky Linux:8
before 0:20220126gitbb1bba3d77-13.el8_10
0:20220126gitbb1bba3d77-13.el8_10
ovmf
SUSE:Linux Enterprise Micro 5.5
before 202208-150500.6.6.1
202208-150500.6.6.1
ovmf
SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS
before 202208-150500.6.6.1
202208-150500.6.6.1
ovmf
SUSE:Linux Enterprise High Performance Computing 15 SP5-LTSS
before 202208-150500.6.6.1
202208-150500.6.6.1
ovmf
SUSE:Linux Enterprise Server 15 SP5-LTSS
before 202208-150500.6.6.1
202208-150500.6.6.1
ovmf
SUSE:Linux Enterprise Server for SAP Applications 15 SP5
before 202208-150500.6.6.1
202208-150500.6.6.1
ovmf
SUSE:Linux Enterprise Module for Package Hub 15 SP6
before 202308-150600.5.9.1
202308-150600.5.9.1
ovmf
SUSE:Linux Enterprise Module for Server Applications 15 SP6
before 202308-150600.5.9.1
202308-150600.5.9.1
ovmf
openSUSE:Leap 15.6
before 202308-150600.5.9.1
202308-150600.5.9.1
ovmf
SUSE:Linux Enterprise Micro 5.3
before 202202-150400.5.15.1
202202-150400.5.15.1
ovmf
SUSE:Linux Enterprise Micro 5.4
before 202202-150400.5.15.1
202202-150400.5.15.1
ovmf
SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS
before 202202-150400.5.15.1
202202-150400.5.15.1
ovmf
SUSE:Linux Enterprise High Performance Computing 15 SP4-LTSS
before 202202-150400.5.15.1
202202-150400.5.15.1
ovmf
SUSE:Linux Enterprise Server 15 SP4-LTSS
before 202202-150400.5.15.1
202202-150400.5.15.1
ovmf
SUSE:Linux Enterprise Server for SAP Applications 15 SP4
before 202202-150400.5.15.1
202202-150400.5.15.1
ovmf
SUSE:Manager Proxy 4.3
before 202202-150400.5.15.1
202202-150400.5.15.1
ovmf
SUSE:Manager Server 4.3
before 202202-150400.5.15.1
202202-150400.5.15.1
ovmf
SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS
before 202008-150300.10.26.1
202008-150300.10.26.1
ovmf
SUSE:Linux Enterprise Server 15 SP3-LTSS
before 202008-150300.10.26.1
202008-150300.10.26.1
ovmf
SUSE:Linux Enterprise Server for SAP Applications 15 SP3
before 202008-150300.10.26.1
202008-150300.10.26.1
ovmf
SUSE:Linux Enterprise Micro 5.1
before 202008-150300.10.26.1
202008-150300.10.26.1
ovmf
SUSE:Linux Enterprise Micro 5.2
before 202008-150300.10.26.1
202008-150300.10.26.1
ovmf
SUSE:Enterprise Storage 7.1
before 202008-150300.10.26.1
202008-150300.10.26.1
ovmf
SUSE:Linux Enterprise Server 12 SP5-LTSS
before 2017+git1510945757.b2662641d5-3.55.1
2017+git1510945757.b2662641d5-3.55.1
ovmf
SUSE:Linux Enterprise Server LTSS Extended Security 12 SP5
before 2017+git1510945757.b2662641d5-3.55.1
2017+git1510945757.b2662641d5-3.55.1
edk2
Ubuntu:Pro:16.04:LTS
All versions, plus listed versions
0~20150106.5c2d456b-20~20160104.c2a892d7-10~20160408.ffea0a2c-20~20160408.ffea0a2c-2ubuntu0.10~20160408.ffea0a2c-2ubuntu0.20~20160408.ffea0a2c-2ubuntu0.2+esm10~20160408.ffea0a2c-2ubuntu0.2+esm30~20160408.ffea0a2c-2ubuntu0.2+esm4
None known
edk2
Ubuntu:Pro:18.04:LTS
All versions, plus listed versions
0~20170911.5dfba97c-10~20171010.234dbcef-10~20171027.76fd5a66-10~20171205.a9212288-10~20180105.0bc94c74-1
Show 8 moreShow less
0~20180205.c0d9813c-10~20180205.c0d9813c-20~20180205.c0d9813c-2ubuntu0.10~20180205.c0d9813c-2ubuntu0.20~20180205.c0d9813c-2ubuntu0.30~20180205.c0d9813c-2ubuntu0.3+esm10~20180205.c0d9813c-2ubuntu0.3+esm20~20180205.c0d9813c-2ubuntu0.3+esm3
None known
edk2
Ubuntu:20.04:LTS
before 0~20191122.bd85bf54-2ubuntu3.5, plus listed versions
0~20190606.20d2e5a1-2ubuntu10~20190828.37eef910-30~20190828.37eef910-40~20191122.bd85bf54-10~20191122.bd85bf54-1ubuntu1
Show 8 moreShow less
0~20191122.bd85bf54-20~20191122.bd85bf54-2ubuntu10~20191122.bd85bf54-2ubuntu20~20191122.bd85bf54-2ubuntu30~20191122.bd85bf54-2ubuntu3.10~20191122.bd85bf54-2ubuntu3.20~20191122.bd85bf54-2ubuntu3.30~20191122.bd85bf54-2ubuntu3.4
0~20191122.bd85bf54-2ubuntu3.5
edk2
Ubuntu:22.04:LTS
before 2022.02-3ubuntu0.22.04.2, plus listed versions
2021.08~rc0-22021.08-32021.11~rc1-12021.11-12021.11-2
Show 6 moreShow less
2022.02~rc1-12022.02~rc1-1ubuntu12022.02-12022.02-22022.02-32022.02-3ubuntu0.22.04.1
2022.02-3ubuntu0.22.04.2
ovmf
openSUSE:Tumbleweed
before 202402-1.1
202402-1.1

History

History
RecordedChangedSources
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2023-45231 is a medium vulnerability (CVSS 6.5) in Tianocore Edk2, published January 16, 2024. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.85%, the 58th percentile. Fixed in edk2-aarch64 20231122-6.el9.

References

Show 125 moreShow less
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