CVE-2020-15945

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. 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.

5.5 /10

CVSS v3.0 : MEDIUM

V3 Legend

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

V2 Legend

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
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://github.com/lua/lua/commit/a2195644d89812e5b157ce7bac35543e06db05e3 Patch Third Party Advisory
https://www.lua.org/bugs.html#5.4.0-8
Configurations

Configuration 1 (hide)

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

19 Feb 2025, 15:15

Type Values Removed Values Added
Summary 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. 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.
References
  • () https://www.lua.org/bugs.html#5.4.0-8 -
References (MISC) http://lua-users.org/lists/lua-l/2020-07/msg00123.html - Exploit, Mailing List, Third Party Advisory () http://lua-users.org/lists/lua-l/2020-07/msg00123.html - Exploit, Mailing List, Third Party Advisory
References (MISC) https://github.com/lua/lua/commit/a2195644d89812e5b157ce7bac35543e06db05e3 - Patch, Third Party Advisory () https://github.com/lua/lua/commit/a2195644d89812e5b157ce7bac35543e06db05e3 - Patch, Third Party Advisory
Information

Published : 2020-07-24 21:15

Updated : 2025-02-19 15:15

NVD link : CVE-2020-15945

Mitre link : CVE-2020-15945

JSON object : View

Products Affected

lua

  • lua
CWE
NVD-CWE-Other