Heap-Based Buffer Overflow in Lua 5.4.0 and Earlier Versions
CVE-2020-15888

8.8HIGH

Key Information:

Vendor

Lua

Status
Lua
Vendor
CVE Published:
21 July 2020

What is CVE-2020-15888?

Lua versions up to 5.4.0 exhibit a vulnerability due to improper handling of stack resizes in relation to garbage collection. This flaw can lead to severe security issues, including heap-based buffer overflows, buffer over-reads, or use-after-free scenarios, allowing potential attackers to exploit the system. Users are advised to review patches and secure their applications to mitigate risks associated with this vulnerability.

References

https://github.com/lua/lua/commit/eb41999461b6f428186c55a...
x_refsource_MISC
https://github.com/lua/lua/commit/6298903e35217ab69c27905...
x_refsource_MISC
http://lua-users.org/lists/lua-l/2020-07/msg00053.html
x_refsource_MISC

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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CVE-2020-15888 : Heap-Based Buffer Overflow in Lua 5.4.0 and Earlier Versions