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

Synopsis:          Moderate: libvpx security update
Advisory ID:       RHSA-2020:4629-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2020:4629
Issue date:        2020-11-03
CVE Names:         CVE-2019-2126 CVE-2019-9232 CVE-2019-9371
                   CVE-2019-9433
====================================================================
1. Summary:

An update for libvpx is now available for Red Hat Enterprise Linux 8.

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 CodeReady Linux Builder (v. 8) - aarch64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux AppStream (v. 8) - aarch64, ppc64le, s390x, x86_64

3. Description:

The libvpx packages provide the VP8 SDK, which allows the encoding and
decoding of the VP8 video codec, commonly used with the WebM multimedia
container file format.

Security Fix(es):

* libvpx: Double free in ParseContentEncodingEntry() in mkvparser.cc
(CVE-2019-2126)

* libvpx: Out of bounds read in vp8_norm table (CVE-2019-9232)

* libvpx: Resource exhaustion after memory leak in mkvparser.cc
(CVE-2019-9371)

* libvpx: Use-after-free in vp8_deblock() in vp8/common/postproc.c
(CVE-2019-9433)

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 8.3 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

After installing the update, all applications using libvpx must be
restarted for the changes to take effect.

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

1788966 - CVE-2019-9232 libvpx: Out of bounds read in vp8_norm table
1788994 - CVE-2019-9433 libvpx: Use-after-free in vp8_deblock() in vp8/common/postproc.c
1789004 - CVE-2019-9371 libvpx: Resource exhaustion after memory leak in mkvparser.cc
1789008 - CVE-2019-2126 libvpx: Double free in ParseContentEncodingEntry() in mkvparser.cc

6. Package List:

Red Hat Enterprise Linux AppStream (v. 8):

Source:
libvpx-1.7.0-8.el8.src.rpm

aarch64:
libvpx-1.7.0-8.el8.aarch64.rpm
libvpx-debuginfo-1.7.0-8.el8.aarch64.rpm
libvpx-debugsource-1.7.0-8.el8.aarch64.rpm
libvpx-utils-debuginfo-1.7.0-8.el8.aarch64.rpm

ppc64le:
libvpx-1.7.0-8.el8.ppc64le.rpm
libvpx-debuginfo-1.7.0-8.el8.ppc64le.rpm
libvpx-debugsource-1.7.0-8.el8.ppc64le.rpm
libvpx-utils-debuginfo-1.7.0-8.el8.ppc64le.rpm

s390x:
libvpx-1.7.0-8.el8.s390x.rpm
libvpx-debuginfo-1.7.0-8.el8.s390x.rpm
libvpx-debugsource-1.7.0-8.el8.s390x.rpm
libvpx-utils-debuginfo-1.7.0-8.el8.s390x.rpm

x86_64:
libvpx-1.7.0-8.el8.i686.rpm
libvpx-1.7.0-8.el8.x86_64.rpm
libvpx-debuginfo-1.7.0-8.el8.i686.rpm
libvpx-debuginfo-1.7.0-8.el8.x86_64.rpm
libvpx-debugsource-1.7.0-8.el8.i686.rpm
libvpx-debugsource-1.7.0-8.el8.x86_64.rpm
libvpx-utils-debuginfo-1.7.0-8.el8.i686.rpm
libvpx-utils-debuginfo-1.7.0-8.el8.x86_64.rpm

Red Hat CodeReady Linux Builder (v. 8):

aarch64:
libvpx-debuginfo-1.7.0-8.el8.aarch64.rpm
libvpx-debugsource-1.7.0-8.el8.aarch64.rpm
libvpx-devel-1.7.0-8.el8.aarch64.rpm
libvpx-utils-debuginfo-1.7.0-8.el8.aarch64.rpm

ppc64le:
libvpx-debuginfo-1.7.0-8.el8.ppc64le.rpm
libvpx-debugsource-1.7.0-8.el8.ppc64le.rpm
libvpx-devel-1.7.0-8.el8.ppc64le.rpm
libvpx-utils-debuginfo-1.7.0-8.el8.ppc64le.rpm

s390x:
libvpx-debuginfo-1.7.0-8.el8.s390x.rpm
libvpx-debugsource-1.7.0-8.el8.s390x.rpm
libvpx-devel-1.7.0-8.el8.s390x.rpm
libvpx-utils-debuginfo-1.7.0-8.el8.s390x.rpm

x86_64:
libvpx-debuginfo-1.7.0-8.el8.i686.rpm
libvpx-debuginfo-1.7.0-8.el8.x86_64.rpm
libvpx-debugsource-1.7.0-8.el8.i686.rpm
libvpx-debugsource-1.7.0-8.el8.x86_64.rpm
libvpx-devel-1.7.0-8.el8.i686.rpm
libvpx-devel-1.7.0-8.el8.x86_64.rpm
libvpx-utils-debuginfo-1.7.0-8.el8.i686.rpm
libvpx-utils-debuginfo-1.7.0-8.el8.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-2019-2126
https://access.redhat.com/security/cve/CVE-2019-9232
https://access.redhat.com/security/cve/CVE-2019-9371
https://access.redhat.com/security/cve/CVE-2019-9433
https://access.redhat.com/security/updates/classification/#moderate
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.3_release_notes/

8. Contact:

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

Copyright 2020 Red Hat, Inc.
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