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CVE-2021-45985

Published: 10 April 2023

In Lua 5.4.3, an erroneous finalizer called during a tail call leads to a heap-based buffer over-read.

Notes

AuthorNote
mdeslaur
memcached not built with experimental proxy code, so vendored
lua isn't built
ccdm94
vulnerable function introduced by commit 14c3aa12b

Priority

Medium

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
darktable
Launchpad, Ubuntu, Debian
bionic Needs triage

focal Needs triage

jammy Needs triage

kinetic Ignored
(end of life, was needs-triage)
lunar Ignored
(end of life, was needs-triage)
mantic Ignored
(end of life, was needs-triage)
noble Needs triage

trusty Ignored
(end of standard support)
upstream Needs triage

xenial Needs triage

lua5.1
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(code not present)
focal 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 Not vulnerable
(code not present)
xenial Not vulnerable
(code not present)
lua5.2
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(code not present)
focal 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)
lua5.3
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(code not present)
focal 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 Ignored
(end of standard support)
upstream Needs triage

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

focal Does not exist

jammy Not vulnerable
(5.4.4-1)
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 Ignored
(end of standard support)
upstream
Released (5.4.4)
xenial Does not exist

Patches:
upstream: https://github.com/lua/lua/commit/cf613cdc6fa367257fc61c256f63d917350858b5
lua50
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(code not present)
focal Not vulnerable
(code not present)
jammy Does not exist

kinetic Does not exist

lunar Does not exist

mantic Does not exist

noble Does not exist

trusty Ignored
(end of standard support)
upstream Needs triage

xenial Not vulnerable
(code not present)
memcached
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(code not present)
focal Not vulnerable
(code not present)
jammy Not vulnerable
(code not compiled)
kinetic Not vulnerable
(code not compiled)
lunar Not vulnerable
(code not compiled)
mantic Not vulnerable
(code not compiled)
noble Not vulnerable
(code not compiled)
trusty Ignored
(end of standard support)
upstream Needs triage

xenial Not vulnerable
(code not present)
tup
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Needs triage

jammy Needs triage

kinetic Ignored
(end of life, was needs-triage)
lunar Ignored
(end of life, was needs-triage)
mantic Ignored
(end of life, was needs-triage)
noble Needs triage

trusty Ignored
(end of standard support)
upstream Needs triage

xenial Ignored
(end of standard support)
vifm
Launchpad, Ubuntu, Debian
bionic Needs triage

focal Needs triage

jammy Needs triage

kinetic Ignored
(end of life, was needs-triage)
lunar Ignored
(end of life, was needs-triage)
mantic Ignored
(end of life, was needs-triage)
noble Needs triage

trusty Ignored
(end of standard support)
upstream Needs triage

xenial Needs triage

Severity score breakdown

Parameter Value
Base score 7.5
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H