Detections
Analytics

CVE-2022-28805

critical

Description

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.

References

https://security.gentoo.org/glsa/202305-23

https://lua-users.org/lists/lua-l/2022-04/msg00009.html

https://lua-users.org/lists/lua-l/2022-02/msg00070.html

https://lua-users.org/lists/lua-l/2022-02/msg00001.html

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UHYZOEFDVLVAD6EEP4CDW6DNONIVVHPA/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RJNJ66IFDUKWJJZXHGOLRGIA3HWWC36R/

https://github.com/lua/lua/commit/1f3c6f4534c6411313361697d98d1145a1f030fa

Details

Source: Mitre, NVD

Published: 2022-04-08

Updated: 2024-11-21

Risk Information

CVSS v2

Base Score: 6.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:P

Severity: Medium

CVSS v3

Base Score: 9.1

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Severity: Critical