Veracode Vulnerability DatabaseVERACODE:33226Use After Free
3.3 Low
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
2.1 Low
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:L/AC:L/Au:N/C:N/I:N/A:P
libsepol is vulnerable to use after free. The vulnerability exists due to a lack of setting the set field of cil_reset_classpermission to NULL instead of resetting the classpermission when freeing the pointer.
| CPE | Name | Operator | Version |
|---|---|---|---|
| libsepol | eq | 2.9__1.el8 | |
| libsepol | eq | 2.8__2.el8 | |
| libsepol | eq | 2.9__2.el8 | |
| libsepol | eq | 2.9__1.el8 | |
| libsepol | eq | 2.8__2.el8 | |
| libsepol | eq | 2.9__2.el8 |
References
access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.5_release_notes/
access.redhat.com/errata/RHSA-2021:4513
access.redhat.com/security/updates/classification/#moderate
bugs.chromium.org/p/oss-fuzz/issues/detail?id=32177
bugzilla.redhat.com/show_bug.cgi?id=1979666
github.com/google/oss-fuzz-vulns/blob/main/vulns/selinux/OSV-2021-536.yaml
github.com/SELinuxProject/selinux/commit/c49a8ea09501ad66e799ea41b8154b6770fec2c8
lists.fedoraproject.org/archives/list/[email protected]/message/U7ZYR3PIJ75N6U2IONJWCKZ5L2NKJTGR/
Related
3.3 Low
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
2.1 Low
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:L/AC:L/Au:N/C:N/I:N/A:P