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CVE-2021-4091

Published: Feb 18, 2022Updated: Nov 3, 2025 Sources: CVE List NVD BDUCWE-415
7.5HIGH
NVD MITRE
EPSS Score
2.0%
Top 21.0%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

Description

A double-free was found in the way 389-ds-base handles virtual attributes context in persistent searches. An attacker could send a series of search requests, forcing the server to behave unexpectedly, and crash.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-415

Affected Products

Novell Inc.
commercial·US
SUSE Linux Enterprise Server for SAP ApplicationsOn-premOS
Operating Systems / linux-distro
SUSE Linux Enterprise High Performance ComputingOn-prem
Operating Systems / linux-distro
SUSE CaaS PlatformOn-prem
Operating Systems / linux-distro
OpenSUSE LeapOn-premOS
Operating Systems / linux-distro
SUSE Linux Enterprise Module for Server ApplicationsOn-prem
Operating Systems / linux-distro
SUSE Manager ProxyOn-prem
Operating Systems / linux-distro
SUSE Manager ServerOn-prem
Operating Systems / linux-distro
SUSE Manager Retail Branch ServerOn-prem
Operating Systems / linux-distro
Red Hat Inc.
commercial·USaka redhat, red hat
Red Hat Enterprise LinuxOn-premOS
Operating Systems / linux-distro
enterprise linux for ibm z systemsOn-prem
Operating Systems / linux-distro
enterprise linux for power big endianOn-prem
Operating Systems / linux-distro
enterprise linux for power little endianOn-prem
Operating Systems / linux-distro
enterprise linux for scientific computingOn-prem
Operating Systems / linux-distro
Red Hat Directory ServerOn-prem
Operating Systems / linux-distro
Amazon.com Inc.
commercial·USaka amazon web services, amazon
Amazon Linux 2Mixed
Operating Systems / linux-distro
Amazon Linux 1Mixed
Operating Systems / linux-distro
port389
commercialaka 389-ds-base
389-ds-baseOn-prem
Networking Infrastructure / network-management
ООО «РусБИТех-Астра»
commercial·RUaka rusbitech-astra
Astra Linux Special EditionOn-premOS
Operating Systems / linux-distro
Fedora Project
oss-project·USaka fedora
389 Directory ServerOn-prem
Operating Systems / linux-distro
and 7 more affected products View all →

Exploitability

Official Patch Available
Is your org exposed to CVE-2021-4091?We can run the check for you — a free external exposure review, no install. Check my exposure

Attack Graph

Products CVE Techniques Tactics

Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.

MITRE ATT&CK

1 technique
Privilege Escalation
View detailed technique mapping

References

https://bugzilla.redhat.com/show_bug.cgi?id=2030307
bugzilla.redhat.com
https://lists.debian.org/debian-lts-announce/2023/04/msg00026.html
lists.debian.org
https://lists.debian.org/debian-lts-announce/2025/01/msg00015.html
lists.debian.org
and 8 more references View all →

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