Detections
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CentOS 8 : samba (CESA-2021:4058)

medium Nessus Plugin ID 154870

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Synopsis

The remote CentOS host is missing a security update.

Description

The remote CentOS Linux 8 host has packages installed that are affected by a vulnerability as referenced in the CESA-2021:4058 advisory.

 - samba: Negative idmap cache entries can cause incorrect group entries in the Samba file server process token (CVE-2021-20254)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

See Also

https://access.redhat.com/errata/RHSA-2021:4058

Plugin Details

Severity: Medium

ID: 154870

File Name: centos8_RHSA-2021-4058.nasl

Version: 1.3

Type: local

Agent: unix

Published: 11/3/2021

Updated: 1/26/2022

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.2

CVSS v2

Risk Factor: Medium

Base Score: 4.9

Temporal Score: 3.6

Vector: CVSS2#AV:N/AC:M/Au:S/C:P/I:P/A:N

CVSS Score Source: CVE-2021-20254

CVSS v3

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.9

Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:centos:centos:python3-samba, p-cpe:/a:centos:centos:samba-winbind, p-cpe:/a:centos:centos:samba-winbind-krb5-locator, p-cpe:/a:centos:centos:samba-test, p-cpe:/a:centos:centos:samba-winexe, p-cpe:/a:centos:centos:libsmbclient-devel, p-cpe:/a:centos:centos:libsmbclient, p-cpe:/a:centos:centos:samba-libs, p-cpe:/a:centos:centos:samba-devel, p-cpe:/a:centos:centos:ctdb, cpe:/o:centos:centos:8, p-cpe:/a:centos:centos:samba-client-libs, p-cpe:/a:centos:centos:python3-samba-test, p-cpe:/a:centos:centos:libwbclient, p-cpe:/a:centos:centos:samba-client, p-cpe:/a:centos:centos:samba-common-tools, p-cpe:/a:centos:centos:samba-test-libs, p-cpe:/a:centos:centos:samba, p-cpe:/a:centos:centos:samba-winbind-modules, p-cpe:/a:centos:centos:samba-common, p-cpe:/a:centos:centos:ctdb-tests, p-cpe:/a:centos:centos:samba-common-libs, p-cpe:/a:centos:centos:samba-winbind-clients, p-cpe:/a:centos:centos:libwbclient-devel, p-cpe:/a:centos:centos:samba-pidl, p-cpe:/a:centos:centos:samba-krb5-printing

Required KB Items: Host/local_checks_enabled, Host/CentOS/release, Host/CentOS/rpm-list, Host/cpu

Exploit Ease: No known exploits are available

Patch Publication Date: 11/2/2021

Vulnerability Publication Date: 4/29/2021

Reference Information

CVE: CVE-2021-20254

IAVA: 2021-A-0208-S

RHSA: 2021:4058