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

Synopsis:          Moderate: webkit2gtk3 security update
Advisory ID:       RHSA-2021:4686-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2021:4686
Issue date:        2021-11-16
CVE Names:         CVE-2021-30858 
=====================================================================

1. Summary:

An update for webkit2gtk3 is now available for Red Hat Enterprise Linux 8.1
Extended Update Support.

Red Hat Product Security has rated this update as having a security impact
of Moderate. 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 AppStream EUS (v. 8.1) - aarch64, ppc64le, s390x, x86_64

3. Description:

WebKitGTK is the port of the portable web rendering engine WebKit to the
GTK platform.

Security Fix(es):

* webkitgtk: Use-after-free leading to arbitrary code execution
(CVE-2021-30858)

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

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

2006099 - CVE-2021-30858 webkitgtk: Use-after-free leading to arbitrary code execution

6. Package List:

Red Hat Enterprise Linux AppStream EUS (v. 8.1):

Source:
webkit2gtk3-2.24.4-4.el8_1.src.rpm

aarch64:
webkit2gtk3-2.24.4-4.el8_1.aarch64.rpm
webkit2gtk3-debuginfo-2.24.4-4.el8_1.aarch64.rpm
webkit2gtk3-debugsource-2.24.4-4.el8_1.aarch64.rpm
webkit2gtk3-devel-debuginfo-2.24.4-4.el8_1.aarch64.rpm
webkit2gtk3-jsc-2.24.4-4.el8_1.aarch64.rpm
webkit2gtk3-jsc-debuginfo-2.24.4-4.el8_1.aarch64.rpm
webkit2gtk3-jsc-devel-debuginfo-2.24.4-4.el8_1.aarch64.rpm
webkit2gtk3-plugin-process-gtk2-2.24.4-4.el8_1.aarch64.rpm
webkit2gtk3-plugin-process-gtk2-debuginfo-2.24.4-4.el8_1.aarch64.rpm

ppc64le:
webkit2gtk3-2.24.4-4.el8_1.ppc64le.rpm
webkit2gtk3-debuginfo-2.24.4-4.el8_1.ppc64le.rpm
webkit2gtk3-debugsource-2.24.4-4.el8_1.ppc64le.rpm
webkit2gtk3-devel-2.24.4-4.el8_1.ppc64le.rpm
webkit2gtk3-devel-debuginfo-2.24.4-4.el8_1.ppc64le.rpm
webkit2gtk3-jsc-2.24.4-4.el8_1.ppc64le.rpm
webkit2gtk3-jsc-debuginfo-2.24.4-4.el8_1.ppc64le.rpm
webkit2gtk3-jsc-devel-2.24.4-4.el8_1.ppc64le.rpm
webkit2gtk3-jsc-devel-debuginfo-2.24.4-4.el8_1.ppc64le.rpm
webkit2gtk3-plugin-process-gtk2-2.24.4-4.el8_1.ppc64le.rpm
webkit2gtk3-plugin-process-gtk2-debuginfo-2.24.4-4.el8_1.ppc64le.rpm

s390x:
webkit2gtk3-2.24.4-4.el8_1.s390x.rpm
webkit2gtk3-debuginfo-2.24.4-4.el8_1.s390x.rpm
webkit2gtk3-debugsource-2.24.4-4.el8_1.s390x.rpm
webkit2gtk3-devel-debuginfo-2.24.4-4.el8_1.s390x.rpm
webkit2gtk3-jsc-2.24.4-4.el8_1.s390x.rpm
webkit2gtk3-jsc-debuginfo-2.24.4-4.el8_1.s390x.rpm
webkit2gtk3-jsc-devel-debuginfo-2.24.4-4.el8_1.s390x.rpm
webkit2gtk3-plugin-process-gtk2-2.24.4-4.el8_1.s390x.rpm
webkit2gtk3-plugin-process-gtk2-debuginfo-2.24.4-4.el8_1.s390x.rpm

x86_64:
webkit2gtk3-2.24.4-4.el8_1.i686.rpm
webkit2gtk3-2.24.4-4.el8_1.x86_64.rpm
webkit2gtk3-debuginfo-2.24.4-4.el8_1.i686.rpm
webkit2gtk3-debuginfo-2.24.4-4.el8_1.x86_64.rpm
webkit2gtk3-debugsource-2.24.4-4.el8_1.i686.rpm
webkit2gtk3-debugsource-2.24.4-4.el8_1.x86_64.rpm
webkit2gtk3-devel-2.24.4-4.el8_1.i686.rpm
webkit2gtk3-devel-2.24.4-4.el8_1.x86_64.rpm
webkit2gtk3-devel-debuginfo-2.24.4-4.el8_1.i686.rpm
webkit2gtk3-devel-debuginfo-2.24.4-4.el8_1.x86_64.rpm
webkit2gtk3-jsc-2.24.4-4.el8_1.i686.rpm
webkit2gtk3-jsc-2.24.4-4.el8_1.x86_64.rpm
webkit2gtk3-jsc-debuginfo-2.24.4-4.el8_1.i686.rpm
webkit2gtk3-jsc-debuginfo-2.24.4-4.el8_1.x86_64.rpm
webkit2gtk3-jsc-devel-2.24.4-4.el8_1.i686.rpm
webkit2gtk3-jsc-devel-2.24.4-4.el8_1.x86_64.rpm
webkit2gtk3-jsc-devel-debuginfo-2.24.4-4.el8_1.i686.rpm
webkit2gtk3-jsc-devel-debuginfo-2.24.4-4.el8_1.x86_64.rpm
webkit2gtk3-plugin-process-gtk2-2.24.4-4.el8_1.i686.rpm
webkit2gtk3-plugin-process-gtk2-2.24.4-4.el8_1.x86_64.rpm
webkit2gtk3-plugin-process-gtk2-debuginfo-2.24.4-4.el8_1.i686.rpm
webkit2gtk3-plugin-process-gtk2-debuginfo-2.24.4-4.el8_1.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-2021-30858
https://access.redhat.com/security/updates/classification/#moderate

8. Contact:

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

Copyright 2021 Red Hat, Inc.
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