Bug 1985311 (CVE-2021-24119)

Summary:	CVE-2021-24119 mbedtls: side-channel vulnerability allows system-level-attacker information disclosure
Product:	[Other] Security Response	Reporter:	Marian Rehak <mrehak>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	ms, redhat-bugzilla
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2021-07-23 22:46:50 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:	1985312, 1985313
Bug Blocks:

Description Marian Rehak 2021-07-23 11:08:59 UTC

In Trusted Firmware Mbed TLS 2.24.0, a side-channel vulnerability in base64 PEM file decoding allows system-level (administrator) attackers to obtain information about secret RSA keys via a controlled-channel and side-channel attack on software running in isolated environments that can be single stepped, especially Intel SGX.

Reference:

https://github.com/ARMmbed/mbedtls/releases
https://github.com/UzL-ITS/util-lookup/blob/main/cve-vulnerability-publication.md

Comment 1 Marian Rehak 2021-07-23 11:09:26 UTC

Created mbedtls tracking bugs for this issue:

Affects: epel-all [bug 1985313]
Affects: fedora-all [bug 1985312]

Comment 2 Product Security DevOps Team 2021-07-23 22:46:50 UTC

This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.