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Red Hat 9.0: RHSA-2023-1211-01 Moderate: Potential Lua DoS Threat

red hat
Calendar Grey March 14, 2023
Dist Redhat Esm H88
Routine Lua security enhancement for RHEL. Implement required updates to bolster system defenses.
An update for lua is now available for Red Hat Enterprise Linux 9.0 Extended Update Support

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

Summary

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.
The following packages have been upgraded to a later upstream version: lua (5.4.4).
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.

Topics%20covered

Topics Covered

security advisory moderate Red Hat DoS stack overflow sandbox escape lua

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

Package List

Red Hat Enterprise Linux AppStream EUS (v.9.0):
aarch64: lua-5.4.4-1.el9_0.1.aarch64.rpm lua-debuginfo-5.4.4-1.el9_0.1.aarch64.rpm lua-debugsource-5.4.4-1.el9_0.1.aarch64.rpm lua-libs-debuginfo-5.4.4-1.el9_0.1.aarch64.rpm
ppc64le: lua-5.4.4-1.el9_0.1.ppc64le.rpm lua-debuginfo-5.4.4-1.el9_0.1.ppc64le.rpm lua-debugsource-5.4.4-1.el9_0.1.ppc64le.rpm lua-libs-debuginfo-5.4.4-1.el9_0.1.ppc64le.rpm
s390x: lua-5.4.4-1.el9_0.1.s390x.rpm lua-debuginfo-5.4.4-1.el9_0.1.s390x.rpm lua-debugsource-5.4.4-1.el9_0.1.s390x.rpm lua-libs-debuginfo-5.4.4-1.el9_0.1.s390x.rpm
x86_64: lua-5.4.4-1.el9_0.1.x86_64.rpm lua-debuginfo-5.4.4-1.el9_0.1.x86_64.rpm lua-debugsource-5.4.4-1.el9_0.1.x86_64.rpm lua-libs-debuginfo-5.4.4-1.el9_0.1.x86_64.rpm
Red Hat Enterprise Linux BaseOS EUS (v.9.0):
Source: lua-5.4.4-1.el9_0.1.src.rpm
aarch64: lua-debuginfo-5.4.4-1.el9_0.1.aarch64.rpm lua-debugsource-5.4.4-1.el9_0.1.aarch64.rpm lua-libs-5.4.4-1.el9_0.1.aarch64.rpm lua-libs-debuginfo-5.4.4-1.el9_0.1.aarch64.rpm
ppc64le: lua-debuginfo-5.4.4-1.el9_0.1.ppc64le.rpm lua-debugsource-5.4.4-1.el9_0.1.ppc64le.rpm lua-libs-5.4.4-1.el9_0.1.ppc64le.rpm lua-libs-debuginfo-5.4.4-1.el9_0.1.ppc64le.rpm
s390x: lua-debuginfo-5.4.4-1.el9_0.1.s390x.rpm lua-debugsource-5.4.4-1.el9_0.1.s390x.rpm

Read the Full Advisory


Advisory ID: RHSA-2023:1211-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2023:1211
Issue date: 2023-03-14

Topic

An update for lua is now available for Red Hat Enterprise Linux 9.0Extended Update Support.Red Hat Product Security has rated this update as having a security impactof Moderate. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory moderate Red Hat DoS stack overflow sandbox escape lua

Relevant Releases Architectures

Red Hat CodeReady Linux Builder EUS (v.9.0) - aarch64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux AppStream EUS (v.9.0) - aarch64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux BaseOS EUS (v.9.0) - aarch64, ppc64le, s390x, x86_64

Bugs Fixed

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

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