Vulnerability · Published Dec 9, 2022 · Assigned by fedora
CVE-2022-4170
Critical 9.8
In plain English
A critical-severity injection in rxvt-unicode. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.2% (higher than 83% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)2.2%top 17.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
The rxvt-unicode package is vulnerable to a remote code execution, in the Perl background extension, when an attacker can control the data written to the user's terminal and certain options are set.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.20 | rxvt-unicode | 9.31-r0 | ALPINE-CVE-2022-4170 |
| Alpine:v3.21 | rxvt-unicode | 9.31-r0 | ALPINE-CVE-2022-4170 |
| Alpine:v3.22 | rxvt-unicode | 9.31-r0 | ALPINE-CVE-2022-4170 |
| Alpine:v3.23 | rxvt-unicode | 9.31-r0 | ALPINE-CVE-2022-4170 |
| Alpine:v3.24 | rxvt-unicode | 9.31-r0 | ALPINE-CVE-2022-4170 |
| Debian:12 | rxvt-unicode | no fix listed | DEBIAN-CVE-2022-4170 |
| Debian:13 | rxvt-unicode | 9.31-1 | DEBIAN-CVE-2022-4170 |
| Debian:14 | rxvt-unicode | 9.31-1 | DEBIAN-CVE-2022-4170 |
| Ubuntu:22.04:LTS | rxvt-unicode | no fix listed | UBUNTU-CVE-2022-4170 |
| Ubuntu:24.04:LTS | rxvt-unicode | no fix listed | UBUNTU-CVE-2022-4170 |
| Ubuntu:25.10 | rxvt-unicode | no fix listed | UBUNTU-CVE-2022-4170 |
| Ubuntu:26.04:LTS | rxvt-unicode | no fix listed | UBUNTU-CVE-2022-4170 |
| Ubuntu:26.10 | rxvt-unicode | no fix listed | UBUNTU-CVE-2022-4170 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| n/a | rxvt-unicode | rxvt-unicode 9.30 |
Weakness: CWE-74 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H