Bug 1974700

Summary:	CVE-2021-33910 systemd: uncontrolled allocation on the stack in function unit_name_path_escape leads to crash [rhel-8.5.0]
Product:	Red Hat Enterprise Linux 8	Reporter:	Riccardo Schirone <rschiron>
Component:	systemd	Assignee:	Jan Macku <jamacku>
Status:	CLOSED ERRATA	QA Contact:	Frantisek Sumsal <fsumsal>
Severity:	high	Docs Contact:
Priority:	urgent
Version:	8.5	CC:	carl, jamacku, jwboyer, lnykryn, lpoetter, msekleta, ngompa13, zjedrzej
Target Milestone:	rc	Keywords:	Security, SecurityTracking, Triaged, ZStream
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:	systemd-239-49.el8	Doc Type:	No Doc Update
Doc Text:		Story Points:	---
Clone Of:
Clones:	1984299 (view as bug list)		Environment:
Last Closed:	2021-11-09 19:57:06 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:
Bug Blocks:	1970887

Description Riccardo Schirone 2021-06-22 10:36:12 UTC

rhel-8 tracking bug for systemd: see the bugs linked in the "Blocks" field of this bug for full details of the security issue(s).

This bug is never intended to be made public, please put any public notes in the blocked bugs.

NOTE THIS ISSUE IS CURRENTLY EMBARGOED, DO NOT MAKE PUBLIC COMMITS OR COMMENTS ABOUT THIS ISSUE.

WARNING: NOTICE THAT REMOVING THE "SECURITY" GROUP FROM THIS TRACKER MAY BREAK THE EMBARGO.

For the Enterprise Linux security issues handling process overview see:
https://source.redhat.com/groups/public/product-security/content/product_security_wiki/eus_z_stream_and_security_bugs

NOTICE: THIS BUG HAS THE DEFAULT OWNER (systemd-maint) OVERRIDDEN BECAUSE IT WAS A MAILING LIST OR NON @redhat.com E-MAIL! PLEASE CONTACT secalert IF THIS CONFUSES YOU.

Comment 2 Lukáš Nykrýn 2021-07-21 10:46:08 UTC

fix merged to github master branch -> https://github.com/redhat-plumbers/systemd-rhel8/pull/197

Comment 3 Josh Boyer 2021-07-21 16:24:16 UTC

*** Bug 1984488 has been marked as a duplicate of this bug. ***

Comment 7 Carl George 🤠 2021-07-29 03:04:01 UTC

systemd-239-49.el8 has been exported to git.centos.org [0], built for CentOS Stream 8 [1], and pushed out to the mirrors.

[0] https://git.centos.org/rpms/systemd/c/812ca2406af1fd327e6971eadfe9bcb4df3db006?branch=c8s
[1] https://koji.mbox.centos.org/koji/buildinfo?buildID=18534

Comment 11 errata-xmlrpc 2021-11-09 19:57:06 UTC

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (systemd bug fix and enhancement update), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2021:4469