Bug 2044613 (CVE-2022-23852)

Summary:	CVE-2022-23852 expat: Integer overflow in function XML_GetBuffer
Product:	[Other] Security Response	Reporter:	Todd Cullum <tcullum>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	anwa, bdettelb, caswilli, cschalle, csutherl, erack, fhrdina, fjansen, fkrska, gzaronik, jburrell, jclere, jhorak, jorton, jwong, jwon, kaycoth, krathod, micjohns, mturk, nmadhesh, nobody, pjindal, psegedy, security-response-team, sthirugn, stransky, szappis, tcarlin, tkasparek, tkorbar, tpopela, tsasak, vkrizan, vkumar, vmugicag
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	expat 2.4.4	Doc Type:	If docs needed, set a value
Doc Text:	expat (libexpat) is susceptible to a software flaw that causes process interruption. When processing a large number of prefixed XML attributes on a single tag can libexpat can terminate unexpectedly due to integer overflow. The highest threat from this vulnerability is to availability, confidentiality and integrity.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2022-05-05 03:15:19 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:	2050873, 2050874, 2052313, 2052314, 2052315, 2052316, 2052317, 2052318, 2052319, 2052320, 2077350
Bug Blocks:	2044595

Description Todd Cullum 2022-01-24 20:06:27 UTC

Expat (aka libexpat) before 2.4.4 has a signed integer overflow in XML_GetBuffer, for configurations with a nonzero XML_CONTEXT_BYTES.

PR: https://github.com/libexpat/libexpat/pull/550
Reference: https://bugzilla.suse.com/1195054

Comment 7 devthomp 2022-02-09 00:44:15 UTC

Created expat tracking bugs for this issue:

Affects: fedora-all [bug 2052320]

Comment 10 errata-xmlrpc 2022-03-16 16:17:08 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2022:0951 https://access.redhat.com/errata/RHSA-2022:0951

Comment 12 errata-xmlrpc 2022-03-28 11:49:33 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2022:1069 https://access.redhat.com/errata/RHSA-2022:1069

Comment 16 Product Security DevOps Team 2022-05-05 03:15:16 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-2022-23852

Comment 17 errata-xmlrpc 2022-05-31 12:24:00 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.4 Extended Update Support

Via RHSA-2022:4834 https://access.redhat.com/errata/RHSA-2022:4834

Comment 18 errata-xmlrpc 2022-10-26 20:08:01 UTC

This issue has been addressed in the following products:

  Red Hat JBoss Core Services

Via RHSA-2022:7144 https://access.redhat.com/errata/RHSA-2022:7144

Comment 19 errata-xmlrpc 2022-10-26 20:21:32 UTC

This issue has been addressed in the following products:

  JBoss Core Services on RHEL 7
  JBoss Core Services for RHEL 8

Via RHSA-2022:7143 https://access.redhat.com/errata/RHSA-2022:7143