libsepol vulnerabilities

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)