CVE-2022-27815: Simple Wayland HotKey Daemon Insecure Temporary File Vulnerability

CRITICAL
Advisory Identifier: GHSA-p4jg-pccf-h82c
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CVSS 9.1
CWE-377 CWE-59
Published
Advisory Summary

CVE-2022-27815 is a CRITICAL (CVSS 9.1) insecure temporary file vulnerability (CWE-377: Insecure Temporary File) affecting Simple Wayland HotKey Daemon libraries in the crates.io ecosystem. The issue involves insecure temporary file in swhkd. Remediation is available by upgrading affected packages to version 1.2.0.

CVE-2022-27815 at a Glance

CVE Identifier CVE-2022-27815
GHSA Identifier GHSA-p4jg-pccf-h82c
Severity CRITICAL
CVSS v3.1 Base Score 9.1
CWE Classification CWE-377: Insecure Temporary File
Affected Product Simple Wayland HotKey Daemon
Package Ecosystem crates.io
Published Date
Last Updated

Security Impact

CVSS: 9.1

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

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

How to Fix CVE-2022-27815

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-2022-27815, 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-377: Insecure Temporary File, where creating and using insecure temporary files can leave application and system data vulnerable to attack. 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 is a display protocol-independent hotkey daemon made in Rust. In SWHKD versions 1.1.5 and prior, SWHKD uses the /tmp/swhkd.pid pathname. As /tmp is accessible to all users, there can be an information leak or denial of service. No known workarounds exist. A patch is available on the `1.1.0` branch of the repository.

CVE-2022-27815 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-2022-27815 NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-27815
Security Fix Commit FIX COMMIT
https://github.com/waycrate/swhkd/commit/e661a4940df78fbb7b52c622ac4ae6a3a7f7d8aa
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-2022-27815?
CVE-2022-27815 is a security vulnerability in Simple Wayland HotKey Daemon involving Insecure Temporary File in SWHKD under CWE-377: Insecure Temporary File.
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-2022-27815?
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-2022-27815?
CVE-2022-27815 has a CVSS v3.1 base score of 9.1 (CRITICAL) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H.
What CWE is associated with CVE-2022-27815?
CVE-2022-27815 is classified under CWE-377: Insecure Temporary File (Creating and using insecure temporary files can leave application and system data vulnerable to attack.).
How can I check crates.io dependencies for CVE-2022-27815?
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-p4jg-pccf-h82c",
  "modified" : "2022-04-06T23:57:05Z",
  "published" : "2022-03-31T00:00:24Z",
  "aliases" : [ "CVE-2022-27815" ],
  "summary" : "Insecure Temporary File in SWHKD",
  "details" : "SWHKD is a display protocol-independent hotkey daemon made in Rust. In SWHKD versions 1.1.5 and prior, SWHKD uses the /tmp/swhkd.pid pathname. As /tmp is accessible to all users, there can be an information leak or denial of service. No known workarounds exist. A patch is available on the `1.1.0` branch of the repository.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/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-2022-27815"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/waycrate/swhkd/commit/e661a4940df78fbb7b52c622ac4ae6a3a7f7d8aa"
  }, {
    "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-377", "CWE-59" ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-04-01T15:15:36Z",
    "nvd_published_at" : "2022-03-30T00:15:00Z"
  }
}