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CVE-2021-4091
A double-free was found in the way 389-ds-base handles virtual attributes context in persistent searches. An attacker could send a series…
High7.5EPSS 2.0%
- Published
- Updated
- Reserved
- Assigned by
- redhat
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 2.0% · top 19% of all CVEs (6 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Weakness
Affected products
389-ds-base
- affected 389-ds-base-1.3.10.2
References (3)
- https://bugzilla.redhat.com/show_bug.cgi?id=2030307 (opens in a new tab)x_transferred
- [debian-lts-announce] 20230424 [SECURITY] [DLA 3399-1] 389-ds-base security update (opens in a new tab)mailing-listx_transferred
- https://lists.debian.org/debian-lts-announce/2025/01/msg00015.html (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2021-4091)Record last updated .