CVE-2021-27212
openldap - security update
7.5
HIGH
CVSS 3.1
EPSS 25.1%
Description
In OpenLDAP through 2.4.57 and 2.5.x through 2.5.1alpha, an assertion failure in slapd can occur in the issuerAndThisUpdateCheck function via a crafted packet, resulting in a denial of service (daemon exit) via a short timestamp. This is related to schema_init.c and checkTime.
How to fix CVE-2021-27212
To remediate CVE-2021-27212, upgrade the affected package to a fixed version below.
- —upgrade to 2.4.50-r2 or later
- —upgrade to 2.4.58 or later
- —upgrade to 2.4.57+dfsg-2 or later
- —upgrade to 2.4.44+dfsg-5+deb9u8 or later
- —upgrade to 2.4.47+dfsg-3+deb10u6 or later
Is CVE-2021-27212 being exploited?
Moderate — EPSS is 25.1%. Track this CVE but it's not at the top of the prioritisation list.
Affected packages (5)
- from 0, < 2.4.50-r2
- from 0, < 2.4.58
- from 0, < 2.4.57+dfsg-2
- from 0, < 2.4.44+dfsg-5+deb9u8
- from 0, < 2.4.47+dfsg-3+deb10u6
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |