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

Synopsis:          Low: libuv security update
Advisory ID:       RHSA-2021:3075-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2021:3075
Issue date:        2021-08-10
CVE Names:         CVE-2021-22918 
=====================================================================

1. Summary:

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

Red Hat Product Security has rated this update as having a security impact
of Low. 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:

libuv is a multi-platform support library with a focus on asynchronous I/O.

Security Fix(es):

* libuv: out-of-bounds read in uv__idna_toascii() can lead to information
disclosures or crashes (CVE-2021-22918)

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/):

1979338 - CVE-2021-22918 libuv: out-of-bounds read in uv__idna_toascii() can lead to information disclosures or crashes

6. Package List:

Red Hat Enterprise Linux AppStream (v. 8):

Source:
libuv-1.41.1-1.el8_4.src.rpm

aarch64:
libuv-1.41.1-1.el8_4.aarch64.rpm
libuv-debuginfo-1.41.1-1.el8_4.aarch64.rpm
libuv-debugsource-1.41.1-1.el8_4.aarch64.rpm

ppc64le:
libuv-1.41.1-1.el8_4.ppc64le.rpm
libuv-debuginfo-1.41.1-1.el8_4.ppc64le.rpm
libuv-debugsource-1.41.1-1.el8_4.ppc64le.rpm

s390x:
libuv-1.41.1-1.el8_4.s390x.rpm
libuv-debuginfo-1.41.1-1.el8_4.s390x.rpm
libuv-debugsource-1.41.1-1.el8_4.s390x.rpm

x86_64:
libuv-1.41.1-1.el8_4.i686.rpm
libuv-1.41.1-1.el8_4.x86_64.rpm
libuv-debuginfo-1.41.1-1.el8_4.i686.rpm
libuv-debuginfo-1.41.1-1.el8_4.x86_64.rpm
libuv-debugsource-1.41.1-1.el8_4.i686.rpm
libuv-debugsource-1.41.1-1.el8_4.x86_64.rpm

Red Hat CodeReady Linux Builder (v. 8):

aarch64:
libuv-debuginfo-1.41.1-1.el8_4.aarch64.rpm
libuv-debugsource-1.41.1-1.el8_4.aarch64.rpm
libuv-devel-1.41.1-1.el8_4.aarch64.rpm

ppc64le:
libuv-debuginfo-1.41.1-1.el8_4.ppc64le.rpm
libuv-debugsource-1.41.1-1.el8_4.ppc64le.rpm
libuv-devel-1.41.1-1.el8_4.ppc64le.rpm

s390x:
libuv-debuginfo-1.41.1-1.el8_4.s390x.rpm
libuv-debugsource-1.41.1-1.el8_4.s390x.rpm
libuv-devel-1.41.1-1.el8_4.s390x.rpm

x86_64:
libuv-debuginfo-1.41.1-1.el8_4.i686.rpm
libuv-debuginfo-1.41.1-1.el8_4.x86_64.rpm
libuv-debugsource-1.41.1-1.el8_4.i686.rpm
libuv-debugsource-1.41.1-1.el8_4.x86_64.rpm
libuv-devel-1.41.1-1.el8_4.i686.rpm
libuv-devel-1.41.1-1.el8_4.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-2021-22918
https://access.redhat.com/security/updates/classification/#low

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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