UBUNTU-CVE-2021-36086

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Source
https://ubuntu.com/security/CVE-2021-36086
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-36086.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2021-36086
Upstream
Downstream
Related
Published
2021-07-01T03:15:00Z
Modified
2025-09-08T16:47:15Z
Severity
  • 3.3 (Low) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
  • Ubuntu - low
Summary
[none]
Details

The CIL compiler in SELinux 3.2 has a use-after-free in cilresetclasspermission (called from cilresetclasspermsset and cilresetclasspermslist).

References

Affected packages

Ubuntu:18.04:LTS / libsepol

Package

Name
libsepol
Purl
pkg:deb/ubuntu/libsepol@2.7-1ubuntu0.1?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.7-1ubuntu0.1

Affected versions

2.*

2.7-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libsepol1",
            "binary_version": "2.7-1ubuntu0.1"
        },
        {
            "binary_name": "libsepol1-dev",
            "binary_version": "2.7-1ubuntu0.1"
        },
        {
            "binary_name": "sepol-utils",
            "binary_version": "2.7-1ubuntu0.1"
        }
    ],
    "availability": "No subscription required"
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-36086.json"

Ubuntu:20.04:LTS / libsepol

Package

Name
libsepol
Purl
pkg:deb/ubuntu/libsepol@3.0-1ubuntu0.1?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.0-1ubuntu0.1

Affected versions

2.*

2.9-2

3.*

3.0-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libsepol1",
            "binary_version": "3.0-1ubuntu0.1"
        },
        {
            "binary_name": "libsepol1-dev",
            "binary_version": "3.0-1ubuntu0.1"
        },
        {
            "binary_name": "sepol-utils",
            "binary_version": "3.0-1ubuntu0.1"
        }
    ],
    "availability": "No subscription required"
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-36086.json"