[RHSA-2022:7811-01] Important: mingw-expat security update

[Security announcements for all Red Hat products and services.]

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                   Red Hat Security Advisory

Synopsis:          Important: mingw-expat security update
Advisory ID:       RHSA-2022:7811-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2022:7811
Issue date:        2022-11-08
CVE Names:         CVE-2022-23990 CVE-2022-25235 CVE-2022-25236 
                   CVE-2022-25313 CVE-2022-25314 CVE-2022-25315 
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1. Summary:

An update for mingw-expat is now available for Red Hat Enterprise Linux 8.

Red Hat Product Security has rated this update as having a security impact
of Important. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available for each vulnerability
from the CVE link(s) in the References section.

2. Relevant releases/architectures:

Red Hat CodeReady Linux Builder (v. 8) - noarch

3. Description:

Expat is a C library for parsing XML documents. The mingw-expat packages
provide a port of the Expat library for MinGW.

The following packages have been upgraded to a later upstream version:
mingw-expat (2.4.8). (BZ#2057023, BZ#2057037, BZ#2057127)

Security Fix(es):

* expat: Malformed 2- and 3-byte UTF-8 sequences can lead to arbitrary code
execution (CVE-2022-25235)

* expat: Namespace-separator characters in "xmlns[:prefix]" attribute
values can lead to arbitrary code execution (CVE-2022-25236)

* expat: Integer overflow in storeRawNames() (CVE-2022-25315)

* expat: Stack exhaustion in doctype parsing (CVE-2022-25313)

* expat: Integer overflow in copyString() (CVE-2022-25314)

* expat: Integer overflow in the doProlog function (CVE-2022-23990)

For more details about the security issue(s), including the impact, a CVSS
score, acknowledgments, and other related information, refer to the CVE
page(s) listed in the References section.

Additional Changes:

For detailed information on changes in this release, see the Red Hat
Enterprise Linux 8.7 Release Notes linked from the References section.

4. Solution:

For details on how to apply this update, which includes the changes
described in this advisory, refer to:

https://access.redhat.com/articles/11258

5. Bugs fixed (https://bugzilla.redhat.com/):

2048356 - CVE-2022-23990 expat: integer overflow in the doProlog function
2056350 - CVE-2022-25313 expat: Stack exhaustion in doctype parsing
2056354 - CVE-2022-25314 expat: Integer overflow in copyString()
2056363 - CVE-2022-25315 expat: Integer overflow in storeRawNames()
2056366 - CVE-2022-25235 expat: Malformed 2- and 3-byte UTF-8 sequences can lead to arbitrary code execution
2056370 - CVE-2022-25236 expat: Namespace-separator characters in "xmlns[:prefix]" attribute values can lead to arbitrary code execution

6. Package List:

Red Hat CodeReady Linux Builder (v. 8):

Source:
mingw-expat-2.4.8-1.el8.src.rpm

noarch:
mingw32-expat-2.4.8-1.el8.noarch.rpm
mingw32-expat-debuginfo-2.4.8-1.el8.noarch.rpm
mingw64-expat-2.4.8-1.el8.noarch.rpm
mingw64-expat-debuginfo-2.4.8-1.el8.noarch.rpm

These packages are GPG signed by Red Hat for security.  Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/

7. References:

https://access.redhat.com/security/cve/CVE-2022-23990
https://access.redhat.com/security/cve/CVE-2022-25235
https://access.redhat.com/security/cve/CVE-2022-25236
https://access.redhat.com/security/cve/CVE-2022-25313
https://access.redhat.com/security/cve/CVE-2022-25314
https://access.redhat.com/security/cve/CVE-2022-25315
https://access.redhat.com/security/updates/classification/#important
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.7_release_notes/index

8. Contact:

The Red Hat security contact is <secalert at redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2022 Red Hat, Inc.
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