CVE-2022-4170 Code injection in rxvt-unicode

What is CVE-2022-4170?

CVE-2022-4170 is a critical code injection vulnerability in Fedoraproject Extra Packages for Enterprise Linux, published on 9 Dec 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

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.

Weakness: CWE-74

Which versions are affected by CVE-2022-4170?

It affects 3 products.

Products include Fedoraproject Extra Packages for Enterprise Linux, Fedoraproject Fedora, Rxvt-Unicode Project Rxvt-Unicode.

How do I fix CVE-2022-4170?

Apply the vendor's patch.

Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.

Is CVE-2022-4170 being exploited?

There is no known exploitation of CVE-2022-4170 in the wild and no public exploit code.

Other vulnerabilities in Fedoraproject Extra Packages for Enterprise Linux

• CVE-2023-34152 Command injection in ImageMagick Critical 9.8
• CVE-2022-40315 Moodle Minor SQL injection risk in admin user browsing Critical 9.8
• CVE-2022-45152 Moodle blind Server-Side Request Forgery (SSRF) vulnerability in LTI provider library Critical 9.1
• CVE-2022-24882 Server side NTLM does not properly check parameters in FreeRDP Critical 9.1
• CVE-2022-2158 Use after free in Chrome High 8.8

All Fedoraproject Extra Packages for Enterprise Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2022-4170, GHSA-v3h7-vj8g-6x3r, MGASA-2022-0459, UBUNTU-CVE-2022-4170, openSUSE-SU-2023:0306-1, openSUSE-SU-2024:13323-1.