Lua
By the Year
In 2024 there have been 0 vulnerabilities in Lua . Last year Lua had 1 security vulnerability published. Right now, Lua is on track to have less security vulnerabilities in 2024 than it did last year.
| Year | Vulnerabilities | Average Score |
|---|---|---|
| 2024 | 0 | 0.00 |
| 2023 | 1 | 7.50 |
| 2022 | 4 | 7.10 |
| 2021 | 1 | 5.50 |
| 2020 | 4 | 6.23 |
| 2019 | 1 | 7.50 |
| 2018 | 0 | 0.00 |
It may take a day or so for new Lua vulnerabilities to show up in the stats or in the list of recent security vulnerabilties. Additionally vulnerabilities may be tagged under a different product or component name.
Recent Lua Security Vulnerabilities
In Lua 5.4.3
CVE-2021-45985
7.5 - High
- April 10, 2023
In Lua 5.4.3, an erroneous finalizer called during a tail call leads to a heap-based buffer over-read.
Memory Corruption
An issue in the component luaG_runerror of Lua v5.4.4 and below leads to a heap-buffer overflow when a recursive error occurs.
CVE-2022-33099
7.5 - High
- July 01, 2022
An issue in the component luaG_runerror of Lua v5.4.4 and below leads to a heap-buffer overflow when a recursive error occurs.
Memory Corruption
singlevar in lparser.c in Lua from (including) 5.4.0 up to (excluding) 5.4.4 lacks a certain luaK_exp2anyregup call, leading to a heap-based buffer over-read
CVE-2022-28805
9.1 - Critical
- April 08, 2022
singlevar in lparser.c in Lua from (including) 5.4.0 up to (excluding) 5.4.4 lacks a certain luaK_exp2anyregup call, leading to a heap-based buffer over-read that might affect a system that compiles untrusted Lua code.
Out-of-bounds Read
Use after free in garbage collector and finalizer of lgc.c in Lua interpreter 5.4.0~5.4.3
CVE-2021-44964
6.3 - Medium
- March 14, 2022
Use after free in garbage collector and finalizer of lgc.c in Lua interpreter 5.4.0~5.4.3 allows attackers to perform Sandbox Escape via a crafted script file.
Dangling pointer
Lua v5.4.3 and above are affected by SEGV by type confusion in funcname
CVE-2021-44647
5.5 - Medium
- January 11, 2022
Lua v5.4.3 and above are affected by SEGV by type confusion in funcnamefromcode function in ldebug.c which can cause a local denial of service.
Object Type Confusion
Stack overflow in lua_resume of ldo.c in Lua Interpreter 5.1.0~5.4.4
CVE-2021-43519
5.5 - Medium
- November 09, 2021
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.
Stack Exhaustion
ldebug.c in Lua 5.4.0
CVE-2020-24370
5.3 - Medium
- August 17, 2020
ldebug.c in Lua 5.4.0 allows a negation overflow and segmentation fault in getlocal and setlocal, as demonstrated by getlocal(3,2^31).
Integer underflow
lgc.c in Lua 5.4.0 mishandles the interaction between barriers and the sweep phase
CVE-2020-24371
5.3 - Medium
- August 17, 2020
lgc.c in Lua 5.4.0 mishandles the interaction between barriers and the sweep phase, leading to a memory access violation involving collectgarbage.
Release of Invalid Pointer or Reference
Lua through 5.4.0 has a segmentation fault in changedline in ldebug.c (e.g
CVE-2020-15945
5.5 - Medium
- July 24, 2020
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 through 5.4.0 mishandles the interaction between stack resizes and garbage collection
CVE-2020-15888
8.8 - High
- July 21, 2020
Lua through 5.4.0 mishandles the interaction between stack resizes and garbage collection, leading to a heap-based buffer overflow, heap-based buffer over-read, or use-after-free.
Out-of-bounds Read
Lua 5.3.5 has a use-after-free in lua_upvaluejoin in lapi.c
CVE-2019-6706
7.5 - High
- January 23, 2019
Lua 5.3.5 has a use-after-free in lua_upvaluejoin in lapi.c. For example, a crash outcome might be achieved by an attacker who is able to trigger a debug.upvaluejoin call in which the arguments have certain relationships.
Dangling pointer
Buffer overflow in the vararg functions in ldo.c in Lua 5.1 through 5.2.x before 5.2.3
CVE-2014-5461
- September 04, 2014
Buffer overflow in the vararg functions in ldo.c in Lua 5.1 through 5.2.x before 5.2.3 allows context-dependent attackers to cause a denial of service (crash) via a small number of arguments to a function with a large number of fixed arguments.
Buffer Overflow
