Bug 2044524 (CVE-2021-34403)

Summary:	CVE-2021-34403 kernel: NVIDIA Linux use after free in nvmap ioctl
Product:	[Other] Security Response	Reporter:	Pedro Sampaio <psampaio>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	acaringi, adscvr, airlied, alciregi, bhu, brdeoliv, bskeggs, chwhite, crwood, dhoward, dvlasenk, fhrbata, fpacheco, hdegoede, hkrzesin, jarod, jarodwilson, jburrell, jeremy, jfaracco, jforbes, jglisse, jlelli, joe.lawrence, jonathan, josef, jshortt, jstancek, jwboyer, kcarcia, kernel-maint, kernel-mgr, lgoncalv, linville, lzampier, masami256, mchehab, nmurray, ptalbert, qzhao, rvrbovsk, scweaver, steved, vkumar, walters, williams
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:	2022-01-26 19:30:56 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:	2044525
Bug Blocks:	2044526

Description Pedro Sampaio 2022-01-24 17:57:39 UTC

NVIDIA Linux distributions contain a vulnerability in nvmap ioctl, which allows
any user with a local account to exploit a use-after-free condition, leading to
code privilege escalation, loss of confidentiality and integrity, or denial of
service.

References:

https://nvidia.custhelp.com/app/answers/detail/a_id/5259

Comment 1 Pedro Sampaio 2022-01-24 17:58:30 UTC

Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2044525]

Comment 2 Justin M. Forbes 2022-01-25 17:36:49 UTC

This is in a vulnerability in code that nvidia has not put upstream.

Comment 3 juneau 2022-01-26 13:46:18 UTC

Hosted OpenShift/Managed Services notaffected.

Comment 5 Product Security DevOps Team 2022-01-26 19:30:52 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-2021-34403