Vulnerability Details : 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.
Vulnerability category: Denial of service
Products affected by CVE-2021-43519
- cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
- cpe:2.3:a:lua:lua:*:*:*:*:*:*:*:*
- cpe:2.3:a:lua:lua:*:*:*:*:*:*:*:*
Threat overview for CVE-2021-43519
Top countries where our scanners detected CVE-2021-43519
Top open port discovered on systems with this issue
9080
IPs affected by CVE-2021-43519 196
Threat actors abusing to this issue?
Yes
Find out if you* are
affected by CVE-2021-43519!
*Directly or indirectly through your vendors, service providers and 3rd parties.
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attack surface intelligence
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Exploit prediction scoring system (EPSS) score for CVE-2021-43519
0.10%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 43 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-43519
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
4.3
|
MEDIUM | AV:N/AC:M/Au:N/C:N/I:N/A:P |
8.6
|
2.9
|
NIST | |
5.5
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
1.8
|
3.6
|
NIST |
CWE ids for CVE-2021-43519
-
The product does not properly control the amount of recursion that takes place, consuming excessive resources, such as allocated memory or the program stack.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-43519
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/P3EMGAQ5Y6GXJLY4K5DUOOEQT4MZ4J4F/
[SECURITY] Fedora 34 Update: lua-5.4.4-1.fc34 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/C7XHFYHGSZKL53VCLSJSAJ6VMFGAIXKO/
[SECURITY] Fedora 35 Update: lua-5.4.4-1.fc35 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
-
http://lua-users.org/lists/lua-l/2021-11/msg00015.html
Re: Crash: Recursive coroutine with pcall leads to stackoverflow of interpreterPatch;Vendor Advisory
-
http://lua-users.org/lists/lua-l/2021-10/msg00123.html
Crash: Recursive coroutine with pcall leads to stackoverflow of interpreterExploit;Mailing List;Vendor Advisory
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