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 [0] https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-36084 [1] https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-36085 [2] https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-36086 [3] https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-36087
Thanks!
The bug has been referenced in the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=0284eecd70db11f4c08e23ba79f2cfe55cf027ae commit 0284eecd70db11f4c08e23ba79f2cfe55cf027ae Author: Jonathan Davies <jpds@protonmail.com> AuthorDate: 2021-10-24 11:45:35 +0000 Commit: Sam James <sam@gentoo.org> CommitDate: 2021-10-31 02:50:19 +0000 sys-libs/libsepol: Version updated to 3.3. Bug: https://bugs.gentoo.org/810101 Signed-off-by: Jonathan Davies <jpds@protonmail.com> Signed-off-by: Sam James <sam@gentoo.org> sys-libs/libsepol/Manifest | 1 + sys-libs/libsepol/libsepol-3.3.ebuild | 50 +++++++++++++++++++++++++++++++++++ 2 files changed, 51 insertions(+)
