Detections
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EulerOS Virtualization 3.0.2.2 : libsepol (EulerOS-SA-2023-1268)

low Nessus Plugin ID 170831

Synopsis

The remote EulerOS Virtualization host is missing multiple security updates.

Description

According to the versions of the libsepol packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :

 - The CIL compiler in SELinux 3.2 has a use-after-free in __cil_verify_classperms (called from
 __cil_verify_classpermission and __cil_pre_verify_helper). (CVE-2021-36084)

 - The CIL compiler in SELinux 3.2 has a use-after-free in __cil_verify_classperms (called from
 __verify_map_perm_classperms and hashtab_map). (CVE-2021-36085)

 - The CIL compiler in SELinux 3.2 has a use-after-free in cil_reset_classpermission (called from cil_reset_classperms_set and cil_reset_classperms_list). (CVE-2021-36086)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Update the affected libsepol packages.

See Also

http://www.nessus.org/u?131750ee

Plugin Details

Severity: Low

ID: 170831

File Name: EulerOS_SA-2023-1268.nasl

Version: 1.1

Type: local

Published: 1/30/2023

Updated: 9/5/2023

Supported Sensors: 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-2021-36086

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: p-cpe:/a:huawei:euleros:libsepol, p-cpe:/a:huawei:euleros:libsepol-devel, cpe:/o:huawei:euleros:uvp:3.0.2.2

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 1/30/2023

Vulnerability Publication Date: 7/1/2021

Reference Information

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