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nvd[email protected]NVD:CVE-2021-36086
HistoryJul 01, 2021 - 3:15 a.m.

CVE-2021-36086

2021-07-0103:15:08
CWE-416
web.nvd.nist.gov
11
selinux compiler
use-after-free
vulnerability
cil_reset_classpermission

CVSS2

2.1

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

CVSS3

3.3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

LOW

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

EPSS

0.001

Percentile

29.5%

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 configurations

Nvd
Node
selinux_projectselinuxMatch-
Node
fedoraprojectfedoraMatch35
VendorProductVersionCPE
selinux_projectselinux-cpe:2.3:o:selinux_project:selinux:-:*:*:*:*:*:*:*
fedoraprojectfedora35cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*

CVSS2

2.1

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

CVSS3

3.3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

LOW

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

EPSS

0.001

Percentile

29.5%