CVE-2021-42383
Published: 15 November 2021
A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when processing a crafted awk pattern in the evaluate function
Notes
| Author | Note |
|---|---|
| mdeslaur | 1.33.1+ |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
busybox Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(1:1.27.2-2ubuntu3.3)
|
| focal |
Not vulnerable
(1:1.30.1-4ubuntu6.3)
|
|
| hirsute |
Not vulnerable
(1:1.30.1-6ubuntu2)
|
|
| impish |
Not vulnerable
(1:1.30.1-6ubuntu3)
|
|
| jammy |
Not vulnerable
(1:1.30.1-6ubuntu3)
|
|
| trusty |
Not vulnerable
|
|
| upstream |
Released
(1.34.0)
|
|
| xenial |
Not vulnerable
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.2 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | High |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | High |
| Availability impact | High |
| Vector | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |