Vulnerability Details : CVE-2020-15945
Lua through 5.4.0 has a segmentation fault in changedline in ldebug.c (e.g., when called by luaG_traceexec) because it incorrectly expects that an oldpc value is always updated upon a return of the flow of control to a function.
Vulnerability category: Memory Corruption
Products affected by CVE-2020-15945
- cpe:2.3:a:lua:lua:*:*:*:*:*:*:*:*
Threat overview for CVE-2020-15945
Top countries where our scanners detected CVE-2020-15945
Top open port discovered on systems with this issue
80
IPs affected by CVE-2020-15945 2
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Exploit prediction scoring system (EPSS) score for CVE-2020-15945
0.04%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 11 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-15945
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
2.1
|
LOW | AV:L/AC:L/Au:N/C:N/I:N/A:P |
3.9
|
2.9
|
NIST | |
|
5.5
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
1.8
|
3.6
|
NIST |
References for CVE-2020-15945
-
http://lua-users.org/lists/lua-l/2020-07/msg00123.html
Segmentation fault in changedlineExploit;Mailing List;Third Party Advisory
-
https://github.com/lua/lua/commit/a2195644d89812e5b157ce7bac35543e06db05e3
Fixed bug: invalid 'oldpc' when returning to a function · lua/lua@a219564 · GitHubPatch;Third Party Advisory
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