Buffer overflow in Lua
CVE-2022-33099
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.028 (86.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 86th percentile — 86.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.027 · newest: 0.028 · change: +0.002
Affected products
- Lua
- Fedoraproject Fedora — versions 35, 36
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/lua/lua/commit/42d40581dd919fb134c07027ca1ce0844c670daf (Patch, Third Party Advisory)
- lua-users.org/lists/lua-l/2022-05/msg00035.html (Exploit, Mailing List, Vendor Advisory)
- lua-users.org/lists/lua-l/2022-05/msg00042.html (Exploit, Mailing List, Vendor Advisory)
- lua-users.org/lists/lua-l/2022-05/msg00073.html (Exploit, Mailing List, Vendor Advisory)
- www.lua.org/bugs.html
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
Frequently asked questions
- What is CVE-2022-33099?
- CVE-2022-33099 is a high-severity vulnerability in Lua, classified under Out-of-bounds Write. CVSS score: 7.5/10. Published 2022-07-01.
- How severe is CVE-2022-33099?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2022-33099 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.