Bug 2144985 (CVE-2022-4087)

Summary:	CVE-2022-4087 ipxe: Padding oracle attack vulnerability
Product:	[Other] Security Response	Reporter:	Pedro Sampaio <psampaio>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED WONTFIX	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	ddepaula, jarod, jferlan, virt-maint
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:	A vulnerability was found in ipxe. This issue affects the tls_new_ciphertext function in the src/net/tls.c file of the TLS component. The manipulation of the pad_len argument leads to information exposure due to discrepancy.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2022-12-13 23:18:33 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	2144986, 2145061, 2145062
Bug Blocks:	2144987

Description Pedro Sampaio 2022-11-22 20:16:45 UTC

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.

Upstream patch:

https://github.com/ipxe/ipxe/commit/186306d6199096b7a7c4b4574d4be8cdb8426729

Comment 1 Pedro Sampaio 2022-11-22 20:17:02 UTC

Created ipxe tracking bugs for this issue:

Affects: fedora-all [bug 2144986]

Comment 3 Product Security DevOps Team 2022-12-13 23:18:31 UTC

This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2022-4087