CVE-2022-1804

Service interruption via retained real user ID

Published Mar 25, 2025 · Updated Mar 25, 2025

Incorrect privilege handling in AccountsService 22.07.5-2ubuntu1 on Ubuntu Linux allows local users to crash or hang the service. The Ubuntu language-tools patch changes only the daemon's effective user ID while writing .pam_environment, retaining the caller's real user ID after root privileges are restored. A low-privileged local account can therefore signal accounts-daemon and interrupt account queries and graphical logins system-wide.

CVSS severity5.5
Medium
EPSS probability0.14%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect privilege handling in AccountsService 22.07.5-2ubuntu1 on Ubuntu Linux allows local users to crash or hang the service. The Ubuntu language-tools patch changes only the daemon's effective user ID while writing .pam_environment, retaining the caller's real user ID after root privileges are restored. A low-privileged local account can therefore signal accounts-daemon and interrupt account queries and graphical logins system-wide.

The record

CVE
CVE-2022-1804
Published
Mar 25, 2025
Updated
Mar 25, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1489
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 25, 2025CVE publishedPublication date reported by the CVE source.
  2. Mar 25, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0.6.55-3ubuntu1 <22.07.5-2ubuntu1.3

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=0.6.55-3ubuntu1 <22.07.5-2ubuntu1.3

Published CVSS scores

5.5CanonicalCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1489Service Stop

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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