CVE-2022-27819 Unsafe parsing in SWHKD

What is CVE-2022-27819?

CVE-2022-27819 is a medium-severity denial of service vulnerability in n/a, published on 7 Apr 2022. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

SWHKD 1.1.5 allows unsafe parsing via the -c option. An information leak might occur but there is a simple denial of service (memory exhaustion) upon an attempt to parse a large or infinite file (such as a block or character device).

Weakness: CWE-770

Which versions are affected by CVE-2022-27819?

2 open source packages ship an affected version, including Simple-Wayland-HotKey-Daemon. It affects 1 product.

Products include Waycrate Swhkd.

How do I fix CVE-2022-27819?

Upgrade Simple-Wayland-HotKey-Daemon to 1.2.0 or later.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2022-27819 being exploited?

There is no known exploitation of CVE-2022-27819 in the wild and no public exploit code.

Other vulnerabilities in n/a

• CVE-2022-27818 Insecure temporary file usage in SWHKD Critical 9.1
• CVE-2022-27815 Insecure Temporary File in SWHKD High 7.8
• CVE-2022-27816 Data Loss/Denial of Service in SWHKD High 7.1
• CVE-2022-27817 Exposure of Resource to Wrong Sphere in Simple-Wayland-HotKey-Daemon Medium 4.4
• CVE-2022-27814 Exposure of Resource to Wrong Sphere in Simple-Wayland-HotKey-Daemon Low 3.3

Sources

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

Also known as GHSA-h6xw-mghq-7523.