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Vulnerability · Published Jul 6, 2020 · Assigned by redhat

CVE-2020-14303

High 7.5

In plain English

A high-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 3.5% (higher than 89% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)7.5High
Exploit odds (30 days)3.5%top 10.7% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

A flaw was found in the AD DC NBT server in all Samba versions before 4.10.17, before 4.11.11 and before 4.12.4. A samba user could send an empty UDP packet to cause the samba server to crash.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Alpine:v3.20samba4.12.5-r0ALPINE-CVE-2020-14303
Alpine:v3.21samba4.12.5-r0ALPINE-CVE-2020-14303
Alpine:v3.22samba4.12.5-r0ALPINE-CVE-2020-14303
Alpine:v3.23samba4.12.5-r0ALPINE-CVE-2020-14303
Alpine:v3.24samba4.12.5-r0ALPINE-CVE-2020-14303
Debian:12samba2:4.12.5+dfsg-1DEBIAN-CVE-2020-14303
Debian:13samba2:4.12.5+dfsg-1DEBIAN-CVE-2020-14303
Debian:14samba2:4.12.5+dfsg-1DEBIAN-CVE-2020-14303

Affected products (as reported)

VendorProductVersions
n/a Samba All Samba versions before 4.10.17, before 4.11.11 and before 4.12.4

References