Bug 2301523 (CVE-2024-42155)

Summary:	CVE-2024-42155 kernel: s390/pkey: Wipe copies of protected- and secure-keys
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security DevOps Team <prodsec-dev>
Status:	NEW ---	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	dfreiber, drow, jburrell, vkumar
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	kernel 6.9.9, kernel 6.10	Doc Type:	If docs needed, set a value
Doc Text:	A vulnerability was found in the Linux kernel's s390 crypto driver where improper secret management lead to protected and secure keys not properly being cleared from memory, allowing the sensitive material to be accessible through memory inspection under specific error conditions. This vulnerability could potentially lead to sensitive information disclosure.	Story Points:	---
Clone Of:		Environment:
Last Closed:		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:	2302023
Bug Blocks:

Description OSIDB Bzimport 2024-07-30 08:41:10 UTC

In the Linux kernel, the following vulnerability has been resolved:

s390/pkey: Wipe copies of protected- and secure-keys

Although the clear-key of neither protected- nor secure-keys is
accessible, this key material should only be visible to the calling
process. So wipe all copies of protected- or secure-keys from stack,
even in case of an error.

Comment 1 Mauro Matteo Cascella 2024-07-31 11:17:30 UTC

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024073035-CVE-2024-42155-5ccb@gregkh/T

Comment 2 Mauro Matteo Cascella 2024-07-31 11:17:51 UTC

Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2302023]