IM
IronMonkey Threat Research

CVE-2021-36085 LOW

Published: 2021-07-01 | Last Modified: 2025-11-03 | Status: Modified

Description

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).

Additional Descriptions (1)

El compilador CIL en SELinux versión 3.2, presenta un uso de la memoria previamente liberada en la función __cil_verify_classperms (llamado desde __verify_map_perm_classperms y hashtab_map)

CVSS Metrics

Base Score: 3.3 (LOW)

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

Attack VectorLOCAL
Attack ComplexityLOW
Privileges RequiredLOW
User InteractionNONE
ScopeUNCHANGED
Confidentiality ImpactNONE
Integrity ImpactNONE
Availability ImpactLOW

Source: [email protected]

Type: Primary

Exploitability Score: 1.8

Impact Score: 1.4

Base Score: 2.1 (LOW)

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

Access VectorLOCAL
Access ComplexityLOW
AuthenticationNONE
Confidentiality ImpactNONE
Integrity ImpactNONE
Availability ImpactPARTIAL

Source: [email protected]

Type: Primary

Exploitability Score: 3.9

Impact Score: 2.9

Weaknesses

Source Type Description
[email protected] Primary
en CWE-416

Affected Products

Vendor Product Version Update Type
selinux_project selinux 3.2 <built-in method update of dict object at 0x7fd341256c40> Operating System
fedoraproject fedora 35 <built-in method update of dict object at 0x7fd340a52b40> Operating System

Affected Configurations

Operator: OR

Vulnerable CPE
Yes cpe:2.3:o:selinux_project:selinux:3.2:*:*:*:*:*:*:*

Operator: OR

Vulnerable CPE
Yes cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*