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Vulnerability · Published Feb 14, 2021 · Assigned by mitre

CVE-2021-27212

High 7.5

In plain English

A high-severity security flaw in the openldap package (Alpine). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 66.1% (higher than 99.3% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)7.5High
Exploit odds (30 days)66.1%top 0.7% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official 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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Alpine:v3.20openldap2.4.57-r1ALPINE-CVE-2021-27212
Alpine:v3.21openldap2.4.57-r1ALPINE-CVE-2021-27212
Alpine:v3.22openldap2.4.57-r1ALPINE-CVE-2021-27212
Alpine:v3.23openldap2.4.57-r1ALPINE-CVE-2021-27212
Alpine:v3.24openldap2.4.57-r1ALPINE-CVE-2021-27212
Debian:12openldap2.4.57+dfsg-2DEBIAN-CVE-2021-27212
Debian:13openldap2.4.57+dfsg-2DEBIAN-CVE-2021-27212
Debian:14openldap2.4.57+dfsg-2DEBIAN-CVE-2021-27212

Affected products (as reported)

VendorProductVersions
n/a n/a n/a

References