CVE-2020-15889

CRITICAL
9.8
CVSS Score
Published: July 21, 2020 at 09:35 PM UTC
Updated: June 17, 2026 at 02:57 AM UTC
1 product affected across 1 vendorLua

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Severity
CRITICAL9.8
Exploit prediction
EPSS 2%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (3)

x_refsource_MISCExploitMailing ListThird Party Advisory
http://lua-users.org/lists/lua-l/2020-07/msg00078.html
x_refsource_MISCMailing ListThird Party Advisory
http://lua-users.org/lists/lua-l/2020-12/msg00157.html

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-125

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