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CVE-2020-21913

Published: 20 September 2021

International Components for Unicode (ICU-20850) v66.1 was discovered to contain a use after free bug in the pkg_createWithAssemblyCode function in the file tools/pkgdata/pkgdata.cpp.

Notes

AuthorNote
tyhicks
mozjs contains a copy of the SpiderMonkey JavaScript engine
mdeslaur
firefox, thunderbird, mozjs don't build pkgdata.cpp

Priority

Low

Cvss 3 Severity Score

5.5

Score breakdown

Status

Package Release Status
firefox
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(code not compiled)
focal Not vulnerable
(code not compiled)
hirsute Not vulnerable
(code not compiled)
upstream Needs triage

impish Not vulnerable
(code not compiled)
jammy Not vulnerable
(code not compiled)
trusty Does not exist

xenial Not vulnerable
(code not compiled)
thunderbird
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(code not compiled)
focal Not vulnerable
(code not compiled)
hirsute Not vulnerable
(code not compiled)
impish Not vulnerable
(code not compiled)
jammy Not vulnerable
(code not compiled)
trusty Does not exist

upstream Needs triage

xenial Not vulnerable
(code not compiled)
icu
Launchpad, Ubuntu, Debian
bionic
Released (60.2-3ubuntu3.2)
focal Not vulnerable
(66.1-2ubuntu1)
hirsute Not vulnerable
(67.1-6ubuntu1)
upstream
Released (66.1)
impish Not vulnerable
(67.1-7ubuntu1)
jammy Not vulnerable
(67.1-7ubuntu1)
trusty
Released (52.1-3ubuntu0.8+esm2)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
xenial
Released (55.1-7ubuntu0.5+esm1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
Patches:
upstream: https://github.com/unicode-org/icu/commit/727505bddab0bfd527f1db6697cb4d4f7febe4a9
mozjs38
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(code not compiled)
focal Does not exist

hirsute Does not exist

upstream Needs triage

impish Does not exist

jammy Does not exist

trusty Does not exist

xenial Does not exist

mozjs52
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(code not compiled)
focal Not vulnerable
(code not compiled)
hirsute Does not exist

upstream Needs triage

impish Does not exist

jammy Does not exist

trusty Does not exist

xenial Does not exist

mozjs68
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Not vulnerable
(code not compiled)
hirsute Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

mozjs78
Launchpad, Ubuntu, Debian
upstream Needs triage

bionic Does not exist

focal Does not exist

hirsute Not vulnerable
(code not compiled)
impish Not vulnerable
(code not compiled)
jammy Not vulnerable
(code not compiled)
trusty Does not exist

xenial Does not exist

Severity score breakdown

Parameter Value
Base score 5.5
Attack vector Local
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H