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

Synopsis:          Moderate: lua security update
Advisory ID:       RHSA-2023:0957-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2023:0957
Issue date:        2023-02-28
CVE Names:         CVE-2021-43519 CVE-2021-44964 
=====================================================================

1. Summary:

An update for lua is now available for Red Hat Enterprise Linux 9.

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. 9) - aarch64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux AppStream (v. 9) - aarch64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux BaseOS (v. 9) - aarch64, ppc64le, s390x, x86_64

3. Description:

The lua packages provide support for Lua, a powerful light-weight
programming language designed for extending applications. Lua is also
frequently used as a general-purpose, stand-alone language.

Security Fix(es):

* lua: use after free allows Sandbox Escape (CVE-2021-44964)

* lua: stack overflow in lua_resume of ldo.c allows a DoS via a crafted
script file (CVE-2021-43519)

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/):

2047672 - CVE-2021-43519 lua: stack overflow in lua_resume of ldo.c allows a DoS via a crafted script file
2064772 - CVE-2021-44964 lua: use after free allows Sandbox Escape

6. Package List:

Red Hat Enterprise Linux AppStream (v. 9):

aarch64:
lua-5.4.4-2.el9_1.aarch64.rpm
lua-debuginfo-5.4.4-2.el9_1.aarch64.rpm
lua-debugsource-5.4.4-2.el9_1.aarch64.rpm
lua-libs-debuginfo-5.4.4-2.el9_1.aarch64.rpm

ppc64le:
lua-5.4.4-2.el9_1.ppc64le.rpm
lua-debuginfo-5.4.4-2.el9_1.ppc64le.rpm
lua-debugsource-5.4.4-2.el9_1.ppc64le.rpm
lua-libs-debuginfo-5.4.4-2.el9_1.ppc64le.rpm

s390x:
lua-5.4.4-2.el9_1.s390x.rpm
lua-debuginfo-5.4.4-2.el9_1.s390x.rpm
lua-debugsource-5.4.4-2.el9_1.s390x.rpm
lua-libs-debuginfo-5.4.4-2.el9_1.s390x.rpm

x86_64:
lua-5.4.4-2.el9_1.x86_64.rpm
lua-debuginfo-5.4.4-2.el9_1.x86_64.rpm
lua-debugsource-5.4.4-2.el9_1.x86_64.rpm
lua-libs-debuginfo-5.4.4-2.el9_1.x86_64.rpm

Red Hat Enterprise Linux BaseOS (v. 9):

Source:
lua-5.4.4-2.el9_1.src.rpm

aarch64:
lua-debuginfo-5.4.4-2.el9_1.aarch64.rpm
lua-debugsource-5.4.4-2.el9_1.aarch64.rpm
lua-libs-5.4.4-2.el9_1.aarch64.rpm
lua-libs-debuginfo-5.4.4-2.el9_1.aarch64.rpm

ppc64le:
lua-debuginfo-5.4.4-2.el9_1.ppc64le.rpm
lua-debugsource-5.4.4-2.el9_1.ppc64le.rpm
lua-libs-5.4.4-2.el9_1.ppc64le.rpm
lua-libs-debuginfo-5.4.4-2.el9_1.ppc64le.rpm

s390x:
lua-debuginfo-5.4.4-2.el9_1.s390x.rpm
lua-debugsource-5.4.4-2.el9_1.s390x.rpm
lua-libs-5.4.4-2.el9_1.s390x.rpm
lua-libs-debuginfo-5.4.4-2.el9_1.s390x.rpm

x86_64:
lua-debuginfo-5.4.4-2.el9_1.i686.rpm
lua-debuginfo-5.4.4-2.el9_1.x86_64.rpm
lua-debugsource-5.4.4-2.el9_1.i686.rpm
lua-debugsource-5.4.4-2.el9_1.x86_64.rpm
lua-libs-5.4.4-2.el9_1.i686.rpm
lua-libs-5.4.4-2.el9_1.x86_64.rpm
lua-libs-debuginfo-5.4.4-2.el9_1.i686.rpm
lua-libs-debuginfo-5.4.4-2.el9_1.x86_64.rpm

Red Hat CodeReady Linux Builder (v. 9):

aarch64:
lua-debuginfo-5.4.4-2.el9_1.aarch64.rpm
lua-debugsource-5.4.4-2.el9_1.aarch64.rpm
lua-devel-5.4.4-2.el9_1.aarch64.rpm
lua-libs-debuginfo-5.4.4-2.el9_1.aarch64.rpm

ppc64le:
lua-debuginfo-5.4.4-2.el9_1.ppc64le.rpm
lua-debugsource-5.4.4-2.el9_1.ppc64le.rpm
lua-devel-5.4.4-2.el9_1.ppc64le.rpm
lua-libs-debuginfo-5.4.4-2.el9_1.ppc64le.rpm

s390x:
lua-debuginfo-5.4.4-2.el9_1.s390x.rpm
lua-debugsource-5.4.4-2.el9_1.s390x.rpm
lua-devel-5.4.4-2.el9_1.s390x.rpm
lua-libs-debuginfo-5.4.4-2.el9_1.s390x.rpm

x86_64:
lua-5.4.4-2.el9_1.i686.rpm
lua-debuginfo-5.4.4-2.el9_1.i686.rpm
lua-debuginfo-5.4.4-2.el9_1.x86_64.rpm
lua-debugsource-5.4.4-2.el9_1.i686.rpm
lua-debugsource-5.4.4-2.el9_1.x86_64.rpm
lua-devel-5.4.4-2.el9_1.i686.rpm
lua-devel-5.4.4-2.el9_1.x86_64.rpm
lua-libs-debuginfo-5.4.4-2.el9_1.i686.rpm
lua-libs-debuginfo-5.4.4-2.el9_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-2021-43519
https://access.redhat.com/security/cve/CVE-2021-44964
https://access.redhat.com/security/updates/classification/#moderate

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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