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CVE-2022-28805

Published: 8 April 2022

singlevar in lparser.c in Lua from (including) 5.4.0 up to (excluding) 5.4.4 lacks a certain luaK_exp2anyregup call, leading to a heap-based buffer over-read that might affect a system that compiles untrusted Lua code.

Notes

AuthorNote
iconstantin
debian bug #1010265 mentions related code is introduced in 5.4

Priority

Medium

Cvss 3 Severity Score

9.1

Score breakdown

Status

Package Release Status
lua5.1
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(code-not-present)
focal Not vulnerable
(code-not-present)
impish Not vulnerable
(code-not-present)
jammy Not vulnerable
(code-not-present)
kinetic Not vulnerable
(code not present)
lunar Not vulnerable
(code not present)
mantic Not vulnerable
(code not present)
noble Not vulnerable
(code not present)
trusty Not vulnerable
(code-not-present)
upstream Needs triage

xenial Not vulnerable
(code-not-present)
lua5.2
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(code not present)
focal Not vulnerable
(code not present)
impish Ignored
(end of life)
jammy Not vulnerable
(code not present)
kinetic Not vulnerable
(code not present)
lunar Not vulnerable
(code not present)
mantic Not vulnerable
(code not present)
noble Not vulnerable
(code not present)
trusty Not vulnerable
(code not present)
upstream Needs triage

xenial Not vulnerable
(code not present)
lua5.3
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(code not present)
focal Not vulnerable
(code not present)
impish Ignored
(end of life)
jammy Not vulnerable
(code not present)
kinetic Not vulnerable
(code not present)
lunar Not vulnerable
(code not present)
mantic Not vulnerable
(code not present)
noble Not vulnerable
(code not present)
trusty Does not exist

upstream Needs triage

xenial Not vulnerable
(code not present)
lua5.4
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Does not exist

impish Ignored
(end of life)
jammy Needed

kinetic Not vulnerable
(5.4.4-3)
lunar Not vulnerable
(5.4.4-3)
mantic Not vulnerable
(5.4.4-3)
noble Not vulnerable
(5.4.4-3)
trusty Does not exist

upstream
Released (5.4.4-2)
xenial Does not exist

lua50
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(code not present)
focal Not vulnerable
(code not present)
impish Ignored
(end of life)
jammy Does not exist

kinetic Does not exist

lunar Does not exist

mantic Does not exist

noble Does not exist

trusty Does not exist

upstream Needs triage

xenial Not vulnerable
(code not present)

Severity score breakdown

Parameter Value
Base score 9.1
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H