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Vulnerability · Published Feb 18, 2022 · Assigned by redhat

CVE-2020-25717

High 8.1

In plain English

A high-severity improper input validation in samba. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.6% (higher than 76% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)8.1High
Exploit odds (30 days)1.6%top 23.7% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

A flaw was found in the way Samba maps domain users to local users. An authenticated attacker could use this flaw to cause possible privilege escalation.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:8libsmbclient-devel4.14.5-7.el8_5ALSA-2021:5082
AlmaLinux:8libsmbclient-devel4.14.5-9.el8_5ALSA-2022:0332
AlmaLinux:8libwbclient-devel4.14.5-9.el8_5ALSA-2022:0332
AlmaLinux:8libwbclient-devel4.14.5-7.el8_5ALSA-2021:5082
AlmaLinux:8samba-devel4.14.5-7.el8_5ALSA-2021:5082
AlmaLinux:8samba-devel4.14.5-9.el8_5ALSA-2022:0332
AlmaLinux:8samba-vfs-iouring4.14.5-7.el8_5ALSA-2021:5082
AlmaLinux:8samba-vfs-iouring4.14.5-9.el8_5ALSA-2022:0332
Alpine:v3.20samba4.15.2-r0ALPINE-CVE-2020-25717
Alpine:v3.21samba4.15.2-r0ALPINE-CVE-2020-25717
Alpine:v3.22samba4.15.2-r0ALPINE-CVE-2020-25717
Alpine:v3.23samba4.15.2-r0ALPINE-CVE-2020-25717
Alpine:v3.24samba4.15.2-r0ALPINE-CVE-2020-25717
Debian:12samba2:4.13.14+dfsg-1DEBIAN-CVE-2020-25717
Debian:13samba2:4.13.14+dfsg-1DEBIAN-CVE-2020-25717
Debian:14samba2:4.13.14+dfsg-1DEBIAN-CVE-2020-25717
Rocky Linux:8samba0:4.14.5-7.el8_5RLSA-2021:5082
Ubuntu:22.04:LTSsamba2:4.13.14+dfsg-0ubuntu1UBUNTU-CVE-2020-25717

Affected products (as reported)

VendorProductVersions
n/a samba samba 4.15.2, samba 4.14.10, samba 4.13.14

Weakness: CWE-20

References