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Vulnerability · Published Dec 2, 2020 · Assigned by redhat

CVE-2020-14383

Medium 6.5

In plain English

A medium-severity security flaw in samba. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.2% (higher than 83% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)6.5Medium
Exploit odds (30 days)2.2%top 17.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

A flaw was found in samba's DNS server. An authenticated user could use this flaw to the RPC server to crash. This RPC server, which also serves protocols other than dnsserver, will be restarted after a short delay, but it is easy for an authenticated non administrative attacker to crash it again as soon as it returns. The Samba DNS server itself will continue to operate, but many RPC services will not.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Alpine:v3.20samba4.12.9-r0ALPINE-CVE-2020-14383
Alpine:v3.21samba4.12.9-r0ALPINE-CVE-2020-14383
Alpine:v3.22samba4.12.9-r0ALPINE-CVE-2020-14383
Alpine:v3.23samba4.12.9-r0ALPINE-CVE-2020-14383
Alpine:v3.24samba4.12.9-r0ALPINE-CVE-2020-14383
Debian:12samba2:4.13.2+dfsg-2DEBIAN-CVE-2020-14383
Debian:13samba2:4.13.2+dfsg-2DEBIAN-CVE-2020-14383
Debian:14samba2:4.13.2+dfsg-2DEBIAN-CVE-2020-14383

Affected products (as reported)

VendorProductVersions
n/a samba samba 4.11.15, samba 4.12.9, samba 4.13.1

Weakness: CWE-391

References