CVE-2020-15945

Lua 5.4.0 (fixed in 5.4.1) 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.

CVSS v3 5.5 MEDIUM
CVSS v2.0 2.1 LOW

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

2.1^/10

CVSS v2.0 : LOW

Vector : AV:L/AC:L/Au:N/C:N/I:N/A:P

Exploitability : 3.9 / Impact : 2.9

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
http://lua-users.org/lists/lua-l/2020-07/msg00123.html	Exploit Mailing List Third Party Advisory
https://github.com/lua/lua/commit/a2195644d89812e5b157ce7bac35543e06db05e3	Patch Third Party Advisory
https://www.lua.org/bugs.html#5.4.0-8
http://lua-users.org/lists/lua-l/2020-07/msg00123.html	Exploit Mailing List Third Party Advisory
https://github.com/lua/lua/commit/a2195644d89812e5b157ce7bac35543e06db05e3	Patch Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:lua:lua:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2020-07-24 21:15

Updated : 2025-02-19 15:15

NVD link : CVE-2020-15945

Mitre link : CVE-2020-15945

CVE.ORG link : CVE-2020-15945

JSON object : View

Products Affected

lua

lua

CWE

NVD-CWE-Other

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