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

Synopsis:          Important: flac security update
Advisory ID:       RHSA-2023:5042-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2023:5042
Issue date:        2023-09-11
CVE Names:         CVE-2020-22219 
=====================================================================

1. Summary:

An update for flac is now available for Red Hat Enterprise Linux 8.1 Update
Services for SAP Solutions.

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 AppStream E4S (v. 8.1) - aarch64, ppc64le, s390x, x86_64

3. Description:

FLAC stands for Free Lossless Audio Codec. FLAC is similar to Ogg Vorbis,
but lossless. The FLAC project consists of the stream format, reference
encoders and decoders in library form, a command-line program to encode and
decode FLAC files, and a command-line metadata editor for FLAC files.

Security Fix(es):

* flac: Remote Code Execution (RCE) via the bitwriter_grow_ function, by
supplying crafted input to the encoder (CVE-2020-22219)

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/):

2235489 - CVE-2020-22219 flac: Remote Code Execution (RCE) via the bitwriter_grow_ function, by supplying crafted input to the encoder

6. Package List:

Red Hat Enterprise Linux AppStream E4S (v. 8.1):

Source:
flac-1.3.2-9.el8_1.1.src.rpm

aarch64:
flac-debuginfo-1.3.2-9.el8_1.1.aarch64.rpm
flac-debugsource-1.3.2-9.el8_1.1.aarch64.rpm
flac-libs-1.3.2-9.el8_1.1.aarch64.rpm
flac-libs-debuginfo-1.3.2-9.el8_1.1.aarch64.rpm

ppc64le:
flac-debuginfo-1.3.2-9.el8_1.1.ppc64le.rpm
flac-debugsource-1.3.2-9.el8_1.1.ppc64le.rpm
flac-libs-1.3.2-9.el8_1.1.ppc64le.rpm
flac-libs-debuginfo-1.3.2-9.el8_1.1.ppc64le.rpm

s390x:
flac-debuginfo-1.3.2-9.el8_1.1.s390x.rpm
flac-debugsource-1.3.2-9.el8_1.1.s390x.rpm
flac-libs-1.3.2-9.el8_1.1.s390x.rpm
flac-libs-debuginfo-1.3.2-9.el8_1.1.s390x.rpm

x86_64:
flac-debuginfo-1.3.2-9.el8_1.1.i686.rpm
flac-debuginfo-1.3.2-9.el8_1.1.x86_64.rpm
flac-debugsource-1.3.2-9.el8_1.1.i686.rpm
flac-debugsource-1.3.2-9.el8_1.1.x86_64.rpm
flac-libs-1.3.2-9.el8_1.1.i686.rpm
flac-libs-1.3.2-9.el8_1.1.x86_64.rpm
flac-libs-debuginfo-1.3.2-9.el8_1.1.i686.rpm
flac-libs-debuginfo-1.3.2-9.el8_1.1.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-2020-22219
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 2023 Red Hat, Inc.
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