CVE-2022-21952: A Missing Authentication for Critical Function vulnerability in spacewalk-java of SUSE Manager Server 4.1, SUS

This week

HIGH 7.5REMOTEUPGRADE

CVE-2022-21952 is a high-severity flaw (CVSS 7.5) affecting manager server. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A Missing Authentication for Critical Function vulnerability in spacewalk-java of SUSE Manager Server 4.1, SUSE Manager Server 4.2 allows remote attackers to easily exhaust available disk resources leading to DoS. This issue affects: SUSE Manager Server 4.1 spacewalk-java versions prior to 4.1.46. SUSE Manager Server 4.2 spacewalk-java versions prior to 4.2.37.

Why this priority

High severity
Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.5% (top 25%)
CISA exploited list	No
Weakness	CWE-306, CWE-770
Published	2022-06-22
Last modified	2026-07-07

Publisher (CNA): SUSE · Vendor: suse

Last updated 2026-07-07 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2022-06-22 10:15 UTCPublished CVE record published
2026-07-07 18:51 UTCUpdated Record last modified

suse manager server UPGRADE

Affected: >= 4.1 and < 4.1.46 · >= 4.2 and < 4.2.37

Fixed in: 4.1.46, 4.2.37

Safe to downgrade to: a release before 4.1

1. Check installed version

apt-cache policy manager-server || rpm -q manager-server || manager-server --version

2. UPGRADE to 4.1.46 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade manager-server

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade manager-server

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 4.1 (Debian / Ubuntu)

apt-cache madison manager-server sudo apt install manager-server=<VERSION_BEFORE_4.1> sudo apt-mark hold manager-server

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list manager-server sudo dnf downgrade manager-server-<VERSION_BEFORE_4.1> sudo dnf versionlock add manager-server

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2022-21952?

manager server: upgrade to 4.1.46, 4.2.37. Exact commands for each OS are on this page.

Is CVE-2022-21952 being exploited?

CVE-2022-21952 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2022-21952 affect?

CVE-2022-21952 affects manager server. Severity is high (CVSS 7.5). A Missing Authentication for Critical Function vulnerability in spacewalk-java of SUSE Manager Server 4.1, SUSE Manager Server 4.2 allows remote attackers to easily exhaust available disk resources leading to DoS. This issue affects: SUSE M

How urgent is CVE-2022-21952?

Priority 55/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

Java vulnerabilities

Related CVEs

CVE-2023-29552 HIGH 7.5 EXPLOITED MITIGATE MITIGATE Service Location Protocol (SLP) Denial-of-Service Vulnerability
CVE-2023-22644 MEDIUM 5.5 UPGRADE A user can reverse engineer the JWT token (JSON Web Token) used in authentication for Manager and API access,
CVE-2022-43754 LOW 2.6 UPGRADE UPGRADE An Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in space
CVE-2022-43753 MEDIUM 4.3 UPGRADE UPGRADE A Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in spacewalk/Uy
CVE-2022-31255 MEDIUM 4.3 UPGRADE UPGRADE An Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in spacewalk/U

References

← Back to latest CVEs