VulnerabilityModified
CVE-2020-24342
Lua through 5.4.0 allows a stack redzone cross in luaO_pushvfstring because a protection mechanism wrongly calls luaD_callnoyield twice in a row.
HIGH 7.8EPSS 1.08%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.08%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Lua through 5.4.0 allows a stack redzone cross in luaO_pushvfstring because a protection mechanism wrongly calls luaD_callnoyield twice in a row.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 1.08% probability · 63th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-119
- Affected
- lua/lua · fedoraproject/fedora
- Source
- cve@mitre.org
References
- http://lua-users.org/lists/lua-l/2020-07/msg00052.htmlExploit, Mailing List, Vendor Advisory
- https://github.com/lua/lua/commit/34affe7a63fc5d842580a9f23616d057e17dfe27Patch, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QA5Q5MDQMTGXRQO3PAQ4EZFTYWJXZM5N/
- http://lua-users.org/lists/lua-l/2020-07/msg00052.htmlExploit, Mailing List, Vendor Advisory
- https://github.com/lua/lua/commit/34affe7a63fc5d842580a9f23616d057e17dfe27Patch, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QA5Q5MDQMTGXRQO3PAQ4EZFTYWJXZM5N/
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.