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
| Author | Note |
|---|---|
| tyhicks | mozjs contains a copy of the SpiderMonkey JavaScript engine |
| mdeslaur | firefox, thunderbird, mozjs don't build pkgdata.cpp |
Priority
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 |
focal |
Not vulnerable
(66.1-2ubuntu1)
|
| hirsute |
Not vulnerable
(67.1-6ubuntu1)
|
|
| upstream |
Released
(66.1)
|
|
| bionic |
Released
(60.2-3ubuntu3.2)
|
|
| 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 |
focal |
Does not exist
|
| hirsute |
Does not exist
|
|
| bionic |
Not vulnerable
(code not compiled)
|
|
| 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 |