Source: libsepol X-Debbugs-CC: t...@security.debian.org Severity: important Tags: security
Hi, The following vulnerabilities were published for libsepol. CVE-2021-36084[0]: | The CIL compiler in SELinux 3.2 has a use-after-free in | __cil_verify_classperms (called from __cil_verify_classpermission and | __cil_pre_verify_helper). https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=31065 https://github.com/SELinuxProject/selinux/commit/f34d3d30c8325e4847a6b696fe7a3936a8a361f3 https://github.com/google/oss-fuzz-vulns/blob/main/vulns/selinux/OSV-2021-417.yaml CVE-2021-36085[1]: | The CIL compiler in SELinux 3.2 has a use-after-free in | __cil_verify_classperms (called from __verify_map_perm_classperms and | hashtab_map). https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=31124a https://github.com/SELinuxProject/selinux/commit/2d35fcc7e9e976a2346b1de20e54f8663e8a6cba https://github.com/google/oss-fuzz-vulns/blob/main/vulns/selinux/OSV-2021-421.yaml CVE-2021-36086[2]: | 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). https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=32177 https://github.com/SELinuxProject/selinux/commit/c49a8ea09501ad66e799ea41b8154b6770fec2c8 https://github.com/google/oss-fuzz-vulns/blob/main/vulns/selinux/OSV-2021-536.yaml CVE-2021-36087[3]: | The CIL compiler in SELinux 3.2 has a heap-based buffer over-read in | ebitmap_match_any (called indirectly from cil_check_neverallow). NOTE: | bad0a746e9f4cf260dedba5828d9645d50176aac is cited in the OSV "fixed" | field but does not have a code change. https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=32675 https://github.com/SELinuxProject/selinux/commit/bad0a746e9f4cf260dedba5828d9645d50176aac https://github.com/google/oss-fuzz-vulns/blob/main/vulns/selinux/OSV-2021-585.yaml If you fix the vulnerabilities please also make sure to include the CVE (Common Vulnerabilities & Exposures) ids in your changelog entry. For further information see: [0] https://security-tracker.debian.org/tracker/CVE-2021-36084 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-36084 [1] https://security-tracker.debian.org/tracker/CVE-2021-36085 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-36085 [2] https://security-tracker.debian.org/tracker/CVE-2021-36086 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-36086 [3] https://security-tracker.debian.org/tracker/CVE-2021-36087 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-36087 Please adjust the affected versions in the BTS as needed.
