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Vulnerability · Published Aug 23, 2022 · Assigned by redhat

CVE-2021-3670

Medium 6.5

In plain English

A medium-severity uncontrolled resource consumption in samba. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.3% (higher than 84% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)6.5Medium
Exploit odds (30 days)2.3%top 16.4% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

MaxQueryDuration not honoured in Samba AD DC LDAP

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Alpine:v3.20samba4.15.9-r0ALPINE-CVE-2021-3670
Alpine:v3.21samba4.15.9-r0ALPINE-CVE-2021-3670
Alpine:v3.22samba4.15.9-r0ALPINE-CVE-2021-3670
Alpine:v3.23samba4.15.9-r0ALPINE-CVE-2021-3670
Alpine:v3.24samba4.15.9-r0ALPINE-CVE-2021-3670
Debian:12samba2:4.16.0+dfsg-2DEBIAN-CVE-2021-3670
Debian:13samba2:4.16.0+dfsg-2DEBIAN-CVE-2021-3670
Debian:14samba2:4.16.0+dfsg-2DEBIAN-CVE-2021-3670
Ubuntu:22.04:LTSsamba2:4.15.9+dfsg-0ubuntu0.2USN-5542-1

Affected products (as reported)

VendorProductVersions
n/a samba Affects Samba 4.1 and newer.

Weakness: CWE-400

References