libvpx security update

CentOS Errata and Security Advisory CESA-2020:3876

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: Denial of service in mediaserver (CVE-2017-0393)

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

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

• libvpx: Out of bounds read in vp8_decode_frame in decodeframe.c (CVE-2020-0034)

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 7.9 Release Notes linked from the References section.

Merged security bulletin from advisories:
https://lists.centos.org/pipermail/centos-cr-announce/2020-October/032835.html

Affected packages:
libvpx
libvpx-devel
libvpx-utils

Upstream details at:
https://access.redhat.com/errata/RHSA-2020:3876