USN-5391-1

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Source
https://ubuntu.com/security/notices/USN-5391-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5391-1.json
JSON Data
https://api.osv.dev/v1/vulns/USN-5391-1
Related
Published
2022-04-27T09:32:18.406221Z
Modified
2022-04-27T09:32:18.406221Z
Summary
libsepol vulnerabilities
Details

Nicolas Iooss discovered that libsepol incorrectly handled memory when handling policies. An attacker could possibly use this issue to cause a crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2021-36084)

It was discovered that libsepol incorrectly handled memory when handling policies. An attacker could possibly use this issue to cause a crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2021-36085)

It was discovered that libsepol incorrectly handled memory when handling policies. An attacker could possibly use this issue to cause a crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affects Ubuntu 18.04 LTS, Ubuntu 20.04 LTS and Ubuntu 21.10. (CVE-2021-36086)

It was discovered that libsepol incorrectly validated certain data, leading to a heap overflow. An attacker could possibly use this issue to cause a crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2021-36087)

References

Affected packages

Ubuntu:Pro:16.04:LTS / libsepol

Package

Name
libsepol
Purl
pkg:deb/ubuntu/libsepol?arch=src?distro=esm-infra/xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.4-2ubuntu0.1~esm1

Affected versions

2.*

2.3-2
2.4-2

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_version": "2.4-2ubuntu0.1~esm1",
            "binary_name": "libsepol1"
        },
        {
            "binary_version": "2.4-2ubuntu0.1~esm1",
            "binary_name": "libsepol1-dbgsym"
        },
        {
            "binary_version": "2.4-2ubuntu0.1~esm1",
            "binary_name": "libsepol1-dev"
        },
        {
            "binary_version": "2.4-2ubuntu0.1~esm1",
            "binary_name": "sepol-utils"
        },
        {
            "binary_version": "2.4-2ubuntu0.1~esm1",
            "binary_name": "sepol-utils-dbgsym"
        }
    ]
}

Ubuntu:18.04:LTS / libsepol

Package

Name
libsepol
Purl
pkg:deb/ubuntu/libsepol?arch=src?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 

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

Ubuntu:20.04:LTS / libsepol

Package

Name
libsepol
Purl
pkg:deb/ubuntu/libsepol?arch=src?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 

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