CVE-2022-33099
lua: heap buffer overflow in luaG_errormsg() in ldebug.c due to uncontrolled recursion in error handling
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · July 1, 2022
Updated · August 4, 2026
Description
A vulnerability was found in Lua. During error handling, the luaG_errormsg() component uses slots from EXTRA_STACK. Some errors can recur such as a string overflow while creating an error message in 'luaG_runerror', or a C-stack overflow before calling the message handler, causing a crash that leads to a denial of service.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 6.5CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CWE-787 · Out-of-bounds Write