CVE-2023-45234

Publication date 16 January 2024

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

8.3 · High

Score breakdown

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.

Read the notes from the security team

Status

Package Ubuntu Release Status
edk2 24.10 oracular
Not affected
24.04 LTS noble
Not affected
23.10 mantic
Fixed 2023.05-2ubuntu0.1
23.04 lunar Ignored end of life, was needs-triage
22.04 LTS jammy
Fixed 2022.02-3ubuntu0.22.04.2
20.04 LTS focal
Fixed 0~20191122.bd85bf54-2ubuntu3.5
18.04 LTS bionic
Needs evaluation
16.04 LTS xenial
Needs evaluation
14.04 LTS trusty Ignored end of standard support

Notes

eslerm

"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 813bfde4aa9 and 688eb3679f7

Severity score breakdown

Parameter Value
Base score 8.3 · High
Attack vector Adjacent
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact Low
Availability impact High
Vector CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:H