CVE-2022-4087

Publication date 21 November 2022

Last updated 24 July 2024

Ubuntu priority

Cvss 3 Severity Score

A vulnerability was found in iPXE. It has been declared as problematic. This vulnerability affects the function tls_new_ciphertext of the file src/net/tls.c of the component TLS. The manipulation of the argument pad_len leads to information exposure through discrepancy. The name of the patch is 186306d6199096b7a7c4b4574d4be8cdb8426729. It is recommended to apply a patch to fix this issue. VDB-214054 is the identifier assigned to this vulnerability.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
ipxe	22.10 kinetic	Not affected
	22.04 LTS jammy	Not affected
	20.04 LTS focal	Not affected
	18.04 LTS bionic	Not affected
	16.04 LTS xenial	Not affected
	14.04 LTS trusty	Not affected

Notes

rodrigo-zaiden

seems like it was introduced in commit 634a86093af9a6d134b that is not included in any release in Ubuntu

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
ipxe	Upstream: 186306d

Severity score breakdown

Parameter	Value
Base score	4.3 · Medium
Attack vector	Network
Attack complexity	Low
Privileges required	Low
User interaction	None
Scope	Unchanged
Confidentiality	Low
Integrity impact	None
Availability impact	None
Vector	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N