Medium severity · published Nov 9, 2021
CVE-2021-43519
Stack overflow in lua_resume of ldo.c in Lua Interpreter 5.1.0~5.4.4 allows attackers to perform a Denial of Service via a crafted script file
5.5
CVSS
1.2%
EPSS
No
On KEV
Description
Stack overflow in lua_resume of ldo.c in Lua Interpreter 5.1.0~5.4.4 allows attackers to perform a Denial of Service via a crafted script file.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.2% · higher than 69% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FE
Fedora · Fedoraproject
35 · source: NVD
LU
Lua · Lua
5.1.0 before 5.3.5; 5.4.0 before 5.4.4 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-43519
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-43519
Exploit
http://lua-users.org/lists/lua-l/2021-10/msg00123.html
Patch
http://lua-users.org/lists/lua-l/2021-11/msg00015.html
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/C7XHFYHGSZKL53VCLSJSAJ6VMFGAIXKO/
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/P3EMGAQ5Y6GXJLY4K5DUOOEQT4MZ4J4F/
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