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CVE-2021-36086

nvd nist
Published: Jul 1, 2021Modified: Mar 24, 2026

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3.3
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Exploitability: 1.8 / Impact: 1.4
Source: NVD

Description

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).

Affected (8)

Show all products
Debian: Debian Linux · Netapp: Active Iq Unified Manager, Bootstrap Os, H610c Firmware, H610s Firmware, H615c Firmware · Selinux Project: Selinux · Fedoraproject: Fedora
Debian
1 product
Debian Linux
Netapp
5 products
Active Iq Unified Manager
Bootstrap Os
H610c Firmware
H610s Firmware
H615c Firmware
Selinux Project
1 product
Selinux
Fedoraproject
1 product
Fedora
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
Debian Linux
Version 11.0
Configuration B
1 vulnerable
Vulnerable SoftwareAffected Versions
Active Iq Unified Manager
All versions
Configuration C
1 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
Bootstrap Os
All versions
Running on/withPlatform Versions
Netapp
Hci Compute Node
All versions
Configuration D
1 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
H610c Firmware
All versions
Running on/withPlatform Versions
Netapp
H610c
All versions
Configuration E
1 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
H610s Firmware
All versions
Running on/withPlatform Versions
Netapp
H610s
All versions
Configuration F
1 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
H615c Firmware
All versions
Running on/withPlatform Versions
Netapp
H615c
All versions
Configuration G
1 vulnerable
Vulnerable SoftwareAffected Versions
Selinux
Before 3.3
Configuration H
1 vulnerable
Vulnerable SoftwareAffected Versions
Fedora
Version 35

Related CWEs

CWE-416
Use After Free
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

References (10)

Source: cve@mitre.org
ExploitIssue TrackingPatchThird Party Advisory
Source: cve@mitre.org
PatchThird Party Advisory
Source: cve@mitre.org
Third Party Advisory
Source: cve@mitre.org
Broken Link
Source: af854a3a-2127-422b-91ae-364da2661108
ExploitIssue TrackingPatchThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
PatchThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing ListThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Broken Link
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory

Timeline

No history available yet.