Bug 2064772 (CVE-2021-44964) - CVE-2021-44964 lua: use after free allows Sandbox Escape
Summary: CVE-2021-44964 lua: use after free allows Sandbox Escape
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2021-44964
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2064774 2064775 2071781 2071782 2072795 2165887 2166643
Blocks: 2064778
TreeView+ depends on / blocked
 
Reported: 2022-03-16 14:17 UTC by Patrick Del Bello
Modified: 2023-09-22 09:22 UTC (History)
25 users (show)

Fixed In Version: lua 5.4.4
Doc Type: If docs needed, set a value
Doc Text:
A flaw was found in the Lua interpreter. This flaw allows an attacker who can have a malicious script executed by the interpreter, to cause a use-after-free issue that may result in a sandbox escape.
Clone Of:
Environment:
Last Closed: 2023-05-09 15:43:57 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2023:0957 0 None None None 2023-02-28 08:19:03 UTC
Red Hat Product Errata RHSA-2023:1211 0 None None None 2023-03-14 13:55:06 UTC

Description Patrick Del Bello 2022-03-16 14:17:18 UTC 
Use after free in garbage collector and finalizer of lgc.c in Lua interpreter 5.4.0~5.4.3 allows attackers to perform Sandbox Escape via a crafted script file.

References:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-44964
https://github.com/Lua-Project/lua-5.4.4-sandbox-escape-with-new-vulnerability
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-44964
http://lua-users.org/lists/lua-l/2021-12/msg00007.html
http://lua-users.org/lists/lua-l/2021-12/msg00015.html
http://lua-users.org/lists/lua-l/2021-12/msg00030.html
http://lua-users.org/lists/lua-l/2021-11/msg00186.html
Comment 1 Patrick Del Bello 2022-03-16 14:17:40 UTC 
Created compat-lua tracking bugs for this issue:

Affects: epel-all [bug 2064775]


Created lua tracking bugs for this issue:

Affects: fedora-all [bug 2064774]
Comment 16 Mauro Matteo Cascella 2023-02-27 13:46:51 UTC 
Upstream fix:
https://github.com/lua/lua/commit/0bfc572e51d9035a615ef6e9523f736c9ffa8e57
Comment 18 errata-xmlrpc 2023-02-28 08:19:01 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2023:0957 https://access.redhat.com/errata/RHSA-2023:0957
Comment 19 errata-xmlrpc 2023-03-14 13:55:04 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.0 Extended Update Support

Via RHSA-2023:1211 https://access.redhat.com/errata/RHSA-2023:1211
Comment 20 Product Security DevOps Team 2023-05-09 15:43:54 UTC 
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2021-44964
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