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AUSCERT External Security Bulletin Redistribution
ESB-2020.3889
libvpx security update
6 November 2020
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: libvpx
Publisher: Red Hat
Operating System: Red Hat
Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction
Denial of Service -- Remote with User Interaction
Access Confidential Data -- Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2019-9433 CVE-2019-9371 CVE-2019-9232
CVE-2019-2126
Reference: ESB-2020.3382
ESB-2020.0207
ESB-2019.4517
Original Bulletin:
https://access.redhat.com/errata/RHSA-2020:4629
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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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