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Fencer Vulns
high 7.5

CVE-2023-45232 json

Infinite loop in EDK II Network Package

published 2024-01-16 2 y ago modified 2026-06-17 4 mo ago also EUVD-2023-49538

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
2.1%
EPSS 2.1% chance of exploitation in 30 days, percentile 81%
public exploits
0
none known

Summary

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.

Patch / fix

  • edk2 Debian 12 2022.11-6+deb12u1
  • edk2 Debian 14, Debian 13 2023.11-6

debian advisories DEBIAN-CVE-2023-45232

  • edk2 Ubuntu 20.04 LTS 0~20191122.bd85bf54-2ubuntu3.5
  • edk2 Ubuntu 22.04 LTS 2022.02-3ubuntu0.22.04.2

ubuntu advisories UBUNTU-CVE-2023-45232

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • edk2 RHEL 8 20220126gitbb1bba3d77-13.el8_10
  • edk2-ovmf RHEL 8 20220126gitbb1bba3d77-13.el8_10
  • edk2-aarch64 RHEL 8 20220126gitbb1bba3d77-13.el8_10
  • edk2 RHEL 9 20231122-6.el9
  • edk2-ovmf RHEL 9 20231122-6.el9
  • edk2-tools RHEL 9 20231122-6.el9
  • edk2-aarch64 RHEL 9 20231122-6.el9
  • edk2 RHEL 8.8 EUS 20220126gitbb1bba3d77-4.el8_8.6

red hat advisories RHSA-2024:8104RHSA-2024:3017RHSA-2024:2264

  • ovmf SLES for SAP 15 SP3, SLES 15 SP3-LTSS, SLE Micro 5.2 +3 more 202008-150300.10.26.1
  • ovmf SLES for SAP 15 SP4, SLES 15 SP4-LTSS, SLE Micro 5.4 +5 more 202202-150400.5.15.1
  • ovmf SLE Module for Server Applications 15 SP6, SLE Module for Package Hub 15 SP6, openSUSE Leap 15.6 202308-150600.5.9.1
  • ovmf SLES for SAP 15 SP5, SLES 15 SP5-LTSS, SLE Micro 5.5 +2 more 202208-150500.6.6.1
  • ovmf SLES LTSS Extended Security 12 SP5, SLES 12 SP5-LTSS 2017+git1510945757.b2662641d5-3.55.1

suse advisories SUSE-SU-2026:0196-1SUSE-SU-2025:0752-1SUSE-SU-2025:0503-1SUSE-SU-2025:0421-1SUSE-SU-2025:0407-1

  • ovmf openSUSE Tumbleweed 202402-1.1

opensuse advisories openSUSE-SU-2024:14199-1

  • edk2-ovmf AlmaLinux 8 20220126gitbb1bba3d77-13.el8_10
  • edk2-aarch64 AlmaLinux 8 20220126gitbb1bba3d77-13.el8_10
  • edk2-ovmf AlmaLinux 9 20231122-6.el9
  • edk2-tools AlmaLinux 9 20231122-6.el9
  • edk2-aarch64 AlmaLinux 9 20231122-6.el9

almalinux advisories ALSA-2024:3017ALSA-2024:2264

  • edk2 Rocky Linux 8 20220126gitbb1bba3d77-13.el8_10
  • edk2 Rocky Linux 9 20231122-6.el9

rocky linux advisories RLSA-2024:3017RLSA-2024:2264

  • edk2 Azure Linux 3.0 20240223gitedc6681206c1-1
  • edk2 CBL-Mariner 2.0 20230301gitf80f052277c8-40
  • hvloader CBL-Mariner 2.0 1.0.1-9

azure linux advisories AZL-38227AZL-39346AZL-39553

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-26-141-02 updated cvss 7.5

ABB B&R PCs

  • ABB APC910 <=1.25 ABB APC2200 <1.35 ABB APC3100 <1.45 ABB APC4100 <1.09 ABB C80 <1.14 ABB MPC3100 <1.24
    +4 more products
    ABB PPC900 <2.16 ABB PPC1200 <1.14 ABB PPC2200 <1.35 ABB PPC3100 <1.45
    affected: vendor fix, mitigation
  • ABB APC2200 1.35 ABB APC3100 1.45 ABB APC4100 1.09 ABB C80 1.14 ABB MPC3100 1.24 ABB PPC900 2.16
    +3 more products
    ABB PPC1200 1.14 ABB PPC2200 1.35 ABB PPC3100 1.45
    fixed

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

red hat product security vex CVE-2023-45232 updated cvss 7.5

edk2: Infinite loop when parsing unknown options in the Destination Options header

  • Red Hat Enterprise Linux AppStream (v. 8) edk2 20220126gitbb1bba3d77-13.el8_10, edk2-ovmf 20220126gitbb1bba3d77-13.el8_10, edk2-aarch64 20220126gitbb1bba3d77-13.el8_10
    fixed: vendor fix RHSA-2024:3017
  • Red Hat Enterprise Linux AppStream (v. 9) edk2 20231122-6.el9, edk2-ovmf 20231122-6.el9, edk2-tools 20231122-6.el9, edk2-aarch64 20231122-6.el9
    fixed: vendor fix RHSA-2024:2264
  • Red Hat Enterprise Linux AppStream EUS (v.8.8) edk2 20220126gitbb1bba3d77-4.el8_8.6, edk2-ovmf 20220126gitbb1bba3d77-4.el8_8.6, edk2-aarch64 20220126gitbb1bba3d77-4.el8_8.6
    fixed: vendor fix RHSA-2024:8104
  • Red Hat Enterprise Linux CRB (v. 9) edk2 20231122-6.el9, edk2-ovmf 20231122-6.el9, edk2-tools 20231122-6.el9, edk2-aarch64 20231122-6.el9
    fixed: vendor fix RHSA-2024:2264

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
18 mo ago

Exploit prediction

2.08% chance of exploitation in the next 30 days, higher than 81% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

  • TianoCore edk2

Classification

Weakness
  • CWE-835 Loop with Unreachable Exit Condition

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.