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CVE-2023-45233

Published: 16 January 2024

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.

Notes

AuthorNote
eslerm
shares fixes with CVE-2023-45232
"exposure is limited to PXE boot or HTTP boot"
patchset available in bug 4518, but not in repo (until Feb-24)
fix and unit test commit id likely 7ec488242f6 and d925ff1f00e

Priority

Medium

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
edk2
Launchpad, Ubuntu, Debian
bionic Needs triage

focal
Released (0~20191122.bd85bf54-2ubuntu3.5)
jammy
Released (2022.02-3ubuntu0.22.04.2)
lunar Ignored
(end of life, was needs-triage)
mantic
Released (2023.05-2ubuntu0.1)
noble Not vulnerable
(2023.11-6)
trusty Ignored
(end of standard support)
upstream Needs triage

xenial Needs triage

Severity score breakdown

Parameter Value
Base score 7.5
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H