CentOS 7 : libX11 (CESA-2021:3296)

critical Nessus Plugin ID 152909

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Synopsis

The remote CentOS Linux host is missing a security update.

Description

The remote CentOS Linux 7 host has packages installed that are affected by a vulnerability as referenced in the CESA-2021:3296 advisory.

 - libX11: missing request length checks (CVE-2021-31535)

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 libX11, libX11-common and / or libX11-devel packages.

See Also

http://www.nessus.org/u?85ff8cd8

https://cwe.mitre.org/data/definitions/20.html

https://cwe.mitre.org/data/definitions/77.html

Plugin Details

Severity: Critical

ID: 152909

File Name: centos_RHSA-2021-3296.nasl

Version: 1.3

Type: local

Agent: unix

Published: 8/30/2021

Updated: 8/31/2021

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.9

Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P

Temporal Vector: E:POC/RL:OF/RC:C

CVSS Score Source: CVE-2021-31535

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

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

Temporal Vector: E:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:centos:centos:libX11, p-cpe:/a:centos:centos:libX11-common, p-cpe:/a:centos:centos:libX11-devel, cpe:/o:centos:centos:7

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 8/30/2021

Vulnerability Publication Date: 5/27/2021

Reference Information

CVE: CVE-2021-31535

RHSA: 2021:3296

CWE: 20, 77