Detections
Analytics

CentOS 8 : libsepol (CESA-2021:4513)

low Nessus Plugin ID 155077

Language:

Synopsis

The remote CentOS host is missing one or more security updates.

Description

The remote CentOS Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the CESA-2021:4513 advisory.

 - libsepol: use-after-free in __cil_verify_classperms() (CVE-2021-36084, CVE-2021-36085)

 - libsepol: use-after-free in cil_reset_classpermission() (CVE-2021-36086)

 - libsepol: heap-based buffer overflow in ebitmap_match_any() (CVE-2021-36087)

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 libsepol, libsepol-devel and / or libsepol-static packages.

See Also

https://access.redhat.com/errata/RHSA-2021:4513

Plugin Details

Severity: Low

ID: 155077

File Name: centos8_RHSA-2021-4513.nasl

Version: 1.3

Type: local

Agent: unix

Published: 11/11/2021

Updated: 11/24/2023

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

Risk Information

VPR

Risk Factor: Low

Score: 2.2

CVSS v2

Risk Factor: Low

Base Score: 2.1

Temporal Score: 1.6

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

CVSS Score Source: CVE-2021-36087

CVSS v3

Risk Factor: Low

Base Score: 3.3

Temporal Score: 3

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

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

Vulnerability Information

CPE: cpe:/o:centos:centos:8-stream, p-cpe:/a:centos:centos:libsepol-static, p-cpe:/a:centos:centos:libsepol, p-cpe:/a:centos:centos:libsepol-devel

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: 11/9/2021

Vulnerability Publication Date: 7/1/2021

Reference Information

CVE: CVE-2021-36084, CVE-2021-36085, CVE-2021-36086, CVE-2021-36087

RHSA: 2021:4513