CVE-2020-15889 : Lua 5.4.0 has a getobjname heap-based buffer over-read because youngcollection i

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.

Published 2020-07-21 22:15:12

Updated 2020-12-23 17:41:55

Source MITRE

View at NVD, CVE.org

Products affected by CVE-2020-15889

LUA » LUA » Version: 5.4.0
cpe:2.3:a:lua:lua:5.4.0:*:*:*:*:*:*:*
Matching versions

Top countries where our scanners detected CVE-2020-15889

Top open port discovered on systems with this issue 80

IPs affected by CVE-2020-15889 2

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EPSS FAQ

0.36%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 69 %

Percentile, the proportion of vulnerabilities that are scored at or less

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
7.5	HIGH	AV:N/AC:L/Au:N/C:P/I:P/A:P	10.0	6.4	NIST
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: Partial Integrity Impact: Partial Availability Impact: Partial
9.8	CRITICAL	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	3.9	5.9	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High

CWE-125 Out-of-bounds Read

The product reads data past the end, or before the beginning, of the intended buffer.

Assigned by: nvd@nist.gov (Primary)

http://lua-users.org/lists/lua-l/2020-07/msg00078.html

heap-buffer-overflow in getobjname
Exploit;Mailing List;Third Party Advisory
https://github.com/lua/lua/commit/127e7a6c8942b362aa3c6627f44d660a4fb75312

Fixed bug of old finalized objects in the GC · lua/lua@127e7a6 · GitHub
Patch;Third Party Advisory
http://lua-users.org/lists/lua-l/2020-12/msg00157.html

Re: CVE-2020-15889
Mailing List;Third Party Advisory

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