VulnerabilityModified
CVE-2020-15889
Lua 5.4.0 has a getobjname heap-based buffer over-read because youngcollection in lgc.c uses markold for an insufficient number of list members.
CRITICAL 9.8EPSS 2.23%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.23%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Lua 5.4.0 has a getobjname heap-based buffer over-read because youngcollection in lgc.c uses markold for an insufficient number of list members.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 2.23% probability · 82th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-125
- Affected
- lua/lua
- Source
- cve@mitre.org
References
- http://lua-users.org/lists/lua-l/2020-07/msg00078.htmlExploit, Mailing List, Third Party Advisory
- http://lua-users.org/lists/lua-l/2020-12/msg00157.htmlMailing List, Third Party Advisory
- https://github.com/lua/lua/commit/127e7a6c8942b362aa3c6627f44d660a4fb75312Patch, Third Party Advisory
- http://lua-users.org/lists/lua-l/2020-07/msg00078.htmlExploit, Mailing List, Third Party Advisory
- http://lua-users.org/lists/lua-l/2020-12/msg00157.htmlMailing List, Third Party Advisory
- https://github.com/lua/lua/commit/127e7a6c8942b362aa3c6627f44d660a4fb75312Patch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.