SUMA unauthenticated remote DoS via resource exhaustion

published 2022-06-22 4 y ago modified 2026-07-07 4 mo ago also EUVD-2022-27108

cvss: 7.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 1.5%; EPSS 1.5% chance of exploitation in 30 days, percentile 75%
public exploits: 0; none known

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.

Patch / fix

fixed in 2 distros 1

SUSE SUSE Manager Server 4.1 4.1.46
SUSE SUSE Manager Server 4.2 4.2.37

release-notes-susemanager-proxy Manager Retail Branch Server 4.2, Manager Proxy 4.2 4.2.7-150300.3.31.2
release-notes-susemanager Manager Server 4.2 4.2.7-150300.3.44.1
spacecmd Manager Server Module 4.1 4.1.18-150200.4.39.3
susemanager Manager Server Module 4.1 4.1.36-150200.3.52.1
spacewalk-web Manager Server Module 4.1 4.1.34-150200.3.47.6
spacewalk-java Manager Server Module 4.1 4.1.46-150200.3.71.5
postgresql-jdbc Manager Server Module 4.1 42.2.10-150200.3.8.2
spacewalk-setup Manager Server Module 4.1 4.1.11-150200.3.18.2

suse advisories SUSE-SU-2022:2146-1 SUSE-SU-2022:2145-1 SUSE-SU-2022:2144-1 SUSE-SU-2022:2143-1

Exploit prediction

1.55% chance of exploitation in the next 30 days, higher than 75% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

bugzilla.suse.com https://bugzilla.suse.com/show_bug.cgi?id=1199512 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD	2.0	5.0	AV:N/AC:L/Au:N/C:N/I:N/A:P

Affected products

SUSE SUSE Manager Server 4.1
SUSE SUSE Manager Server 4.2

Classification

Weakness

CWE-306 Missing Authentication for Critical Functionality
CWE-770 Allocation of Resources Without Limits or Throttling

References

bugzilla.suse.com /show_bug.cgi?id=1199512
exploit, issue-tracking, third-party-advisory

Sources

CVE List CVE-2022-21952
NVD CVE-2022-21952

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary