CVE-2022-27819: Simple Wayland HotKey Daemon Unsafe Parsing Vulnerability

MODERATE
Advisory Identifier: GHSA-h6xw-mghq-7523
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CVSS 5.3
CWE-400 CWE-770
Published
Advisory Summary

CVE-2022-27819 is a MODERATE (CVSS 5.3) unsafe parsing vulnerability (CWE-400: Uncontrolled Resource Consumption) affecting Simple Wayland HotKey Daemon libraries in the crates.io ecosystem. The issue involves unsafe parsing in swhkd. Remediation is available by upgrading affected packages to version 1.2.0.

CVE-2022-27819 at a Glance

CVE Identifier CVE-2022-27819
GHSA Identifier GHSA-h6xw-mghq-7523
Severity MODERATE
CVSS v3.1 Base Score 5.3
CWE Classification CWE-400: Uncontrolled Resource Consumption
Affected Product Simple Wayland HotKey Daemon
Package Ecosystem crates.io
Published Date
Last Updated

Security Impact

CVSS: 5.3

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:H).

Attack Vector Local (AV:L)
Attack Complexity High (AC:H)
Privileges Required None (PR:N)
User Interaction Required (UI:R)
Scope Unchanged (S:U)
Confidentiality Low (C:L)
Integrity None (I:N)
Availability High (A:H)

How to Fix CVE-2022-27819

To remediate this vulnerability, upgrade all affected Simple Wayland HotKey Daemon dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

Simple-Wayland-HotKey-Daemon fixed: 1.2.0 
Upgrade Simple-Wayland-HotKey-Daemon to 1.2.0
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for Simple-Wayland-HotKey-Daemon

How to Check if You Are Affected

To determine whether your application is affected by CVE-2022-27819, inspect your project dependencies for Simple Wayland HotKey Daemon:

inspect dependencies for Simple-Wayland-HotKey-Daemon

Analyze the terminal output to locate any version of Simple Wayland HotKey Daemon in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.2.0), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-400: Uncontrolled Resource Consumption, where the product does not properly control the allocation and maintenance of a limited resource. In Simple Wayland HotKey Daemon, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

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).

CVE-2022-27819 Affected Simple Wayland HotKey Daemon Versions

1 component(s)
Fixed Versions:
1.2.0
Product / Package Ecosystem Affected Versions Fixed Version
Simple-Wayland-HotKey-Daemon
 crates.io
< 1.2.0
1.2.0

References

NVD — CVE-2022-27819 NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-27819
Security Fix Commit FIX COMMIT
https://github.com/waycrate/swhkd/commit/b4e6dc76f4845ab03104187a42ac6d1bbc1e0021
Simple Wayland HotKey Daemon Source Repository REPOSITORY
https://github.com/waycrate/swhkd
Simple Wayland HotKey Daemon Source Repository REPOSITORY
https://github.com/waycrate/swhkd/releases
Simple Wayland HotKey Daemon Release RELEASE
https://github.com/waycrate/swhkd/releases/tag/1.2.0
Simple Wayland HotKey Daemon Security Information SECURITY
http://www.openwall.com/lists/oss-security/2022/04/14/1

Frequently Asked Questions

What is CVE-2022-27819?
CVE-2022-27819 is a security vulnerability in Simple Wayland HotKey Daemon involving Unsafe parsing in SWHKD under CWE-400: Uncontrolled Resource Consumption.
Which Simple Wayland HotKey Daemon versions are affected?
Affected versions include releases prior to 1.2.0 across affected packages: Simple-Wayland-HotKey-Daemon.
What version fixes CVE-2022-27819?
Upgrading to 1.2.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is Simple-Wayland-HotKey-Daemon affected?
Yes, Simple-Wayland-HotKey-Daemon is affected in releases prior to 1.2.0. Upgrade your dependency to 1.2.0 or later.
What is the CVSS score of CVE-2022-27819?
CVE-2022-27819 has a CVSS v3.1 base score of 5.3 (MODERATE) with vector string CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:H.
What CWE is associated with CVE-2022-27819?
CVE-2022-27819 is classified under CWE-400: Uncontrolled Resource Consumption (The product does not properly control the allocation and maintenance of a limited resource.).
How can I check crates.io dependencies for CVE-2022-27819?
Run the dependency tree command: 'inspect dependencies for Simple-Wayland-HotKey-Daemon'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-h6xw-mghq-7523",
  "modified" : "2022-04-15T16:14:51Z",
  "published" : "2022-04-08T00:00:24Z",
  "aliases" : [ "CVE-2022-27819" ],
  "summary" : "Unsafe parsing in SWHKD",
  "details" : "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).",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "crates.io",
      "name" : "Simple-Wayland-HotKey-Daemon"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.2.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2022-27819"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/waycrate/swhkd/commit/b4e6dc76f4845ab03104187a42ac6d1bbc1e0021"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/waycrate/swhkd"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/waycrate/swhkd/releases"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/waycrate/swhkd/releases/tag/1.2.0"
  }, {
    "type" : "WEB",
    "url" : "http://www.openwall.com/lists/oss-security/2022/04/14/1"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-400", "CWE-770" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-04-08T22:12:17Z",
    "nvd_published_at" : "2022-04-07T02:15:00Z"
  }
}