High severity · published Feb 18, 2022
CVE-2021-4091
A double-free was found in the way 389-ds-base handles virtual attributes context in persistent searches
7.5
CVSS
2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.0% · higher than 81% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
38
389-ds-base · Port389
before 1.3.10.2 · source: NVD
EL
Enterprise Linux Desktop · Redhat
7 · source: NVD
EL
Enterprise Linux For Ibm Z Systems · Redhat
7.0 · source: NVD
EL
Enterprise Linux For Power Big Endian · Redhat
7.0 · source: NVD
EL
Enterprise Linux For Power Little Endian · Redhat
7.0 · source: NVD
EL
Enterprise Linux For Scientific Computing · Redhat
7.0 · source: NVD
EL
Enterprise Linux Server · Redhat
7.0 · source: NVD
EL
Enterprise Linux Workstation · Redhat
7.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-4091
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-4091
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=2030307
lists.debian.org
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
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