RHEL 7 : libX11 (RHSA-2021:3296)

critical Nessus Plugin ID 152906

Synopsis

The remote Red Hat host is missing a security update.

Description

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by a vulnerability as referenced in the RHSA-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

https://access.redhat.com/security/cve/CVE-2021-31535

https://access.redhat.com/errata/RHSA-2021:3296

https://bugzilla.redhat.com/1961822

Plugin Details

Severity: Critical

ID: 152906

File Name: redhat-RHSA-2021-3296.nasl

Version: 1.8

Type: local

Agent: unix

Published: 8/30/2021

Updated: 5/24/2023

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.9

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

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: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:redhat:enterprise_linux:7, p-cpe:/a:redhat:enterprise_linux:libx11, p-cpe:/a:redhat:enterprise_linux:libx11-common, p-cpe:/a:redhat:enterprise_linux:libx11-devel

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/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

CWE: 20, 77

RHSA: 2021:3296