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=====================================================================
                   Red Hat Security Advisory

Synopsis:          Important: thunderbird security update
Advisory ID:       RHSA-2022:0850-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2022:0850
Issue date:        2022-03-14
CVE Names:         CVE-2022-0566 CVE-2022-25235 CVE-2022-25236 
                   CVE-2022-25315 CVE-2022-26381 CVE-2022-26383 
                   CVE-2022-26384 CVE-2022-26386 CVE-2022-26387 
                   CVE-2022-26485 CVE-2022-26486 
=====================================================================

1. Summary:

An update for thunderbird is now available for Red Hat Enterprise Linux 7.

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 Enterprise Linux Client (v. 7) - x86_64
Red Hat Enterprise Linux Server Optional (v. 7) - ppc64le, x86_64
Red Hat Enterprise Linux Workstation (v. 7) - x86_64

3. Description:

Mozilla Thunderbird is a standalone mail and newsgroup client.

This update upgrades Thunderbird to version 91.7.0.

Security Fix(es):

* Mozilla: Use-after-free in XSLT parameter processing (CVE-2022-26485)

* Mozilla: Use-after-free in WebGPU IPC Framework (CVE-2022-26486)

* 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)

* Mozilla: Use-after-free in text reflows (CVE-2022-26381)

* Mozilla: Browser window spoof using fullscreen mode (CVE-2022-26383)

* Mozilla: iframe allow-scripts sandbox bypass (CVE-2022-26384)

* Mozilla: Time-of-check time-of-use bug when verifying add-on signatures
(CVE-2022-26387)

* thunderbird: Crafted email could trigger an out-of-bounds write
(CVE-2022-0566)

* Mozilla: Temporary files downloaded to /tmp and accessible by other local
users (CVE-2022-26386)

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.

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

All running instances of Thunderbird must be restarted for the update to
take effect.

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

2055591 - CVE-2022-0566 thunderbird: Crafted email could trigger an out-of-bounds write
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
2061735 - CVE-2022-26486 Mozilla: Use-after-free in WebGPU IPC Framework
2061736 - CVE-2022-26485 Mozilla: Use-after-free in XSLT parameter processing
2062220 - CVE-2022-26383 Mozilla: Browser window spoof using fullscreen mode
2062221 - CVE-2022-26384 Mozilla: iframe allow-scripts sandbox bypass
2062222 - CVE-2022-26387 Mozilla: Time-of-check time-of-use bug when verifying add-on signatures
2062223 - CVE-2022-26381 Mozilla: Use-after-free in text reflows
2062224 - CVE-2022-26386 Mozilla: Temporary files downloaded to /tmp and accessible by other local users

6. Package List:

Red Hat Enterprise Linux Client (v. 7):

Source:
thunderbird-91.7.0-2.el7_9.src.rpm

x86_64:
thunderbird-91.7.0-2.el7_9.x86_64.rpm
thunderbird-debuginfo-91.7.0-2.el7_9.x86_64.rpm

Red Hat Enterprise Linux Server Optional (v. 7):

Source:
thunderbird-91.7.0-2.el7_9.src.rpm

ppc64le:
thunderbird-91.7.0-2.el7_9.ppc64le.rpm
thunderbird-debuginfo-91.7.0-2.el7_9.ppc64le.rpm

x86_64:
thunderbird-91.7.0-2.el7_9.x86_64.rpm
thunderbird-debuginfo-91.7.0-2.el7_9.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 7):

Source:
thunderbird-91.7.0-2.el7_9.src.rpm

x86_64:
thunderbird-91.7.0-2.el7_9.x86_64.rpm
thunderbird-debuginfo-91.7.0-2.el7_9.x86_64.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-2022-0566
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-2022-25315
https://access.redhat.com/security/cve/CVE-2022-26381
https://access.redhat.com/security/cve/CVE-2022-26383
https://access.redhat.com/security/cve/CVE-2022-26384
https://access.redhat.com/security/cve/CVE-2022-26386
https://access.redhat.com/security/cve/CVE-2022-26387
https://access.redhat.com/security/cve/CVE-2022-26485
https://access.redhat.com/security/cve/CVE-2022-26486
https://access.redhat.com/security/updates/classification/#important

8. Contact:

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

Copyright 2022 Red Hat, Inc.
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