Selinux Security Vulnerabilities
The Ubuntu SELinux initscript before version 1:0.10 used touch to create a lockfile in a world-writable directory. If the OS kernel does not have symlink protections then an attacker can cause a zero byte file to be allocated on any writable filesystem.
5.9CVSS
5.5AI Score
0.001EPSS
selinux-policy when sysctl fs.protected_hardlinks are set to 0 allows local users to cause a denial of service (SSH login prevention) by creating a hardlink to /etc/passwd from a directory named .config, and updating selinux-policy.
5.5CVSS
5.3AI Score
0.0004EPSS
SELinux policycoreutils allows local users to execute arbitrary commands outside of the sandbox via a crafted TIOCSTI ioctl call.
8.8CVSS
8.5AI Score
0.0004EPSS
Context relabeling of filesystems is vulnerable to symbolic link attack, allowing a local, unprivileged malicious entity to change the SELinux context of an arbitrary file to a context with few restrictions. This only happens when the relabeling process is done, usually when taking SELinux state fr...
4.4CVSS
4.4AI Score
0.0004EPSS
A flaw was found in the Linux kernels SELinux LSM hook implementation before version 5.7, where it incorrectly assumed that an skb would only contain a single netlink message. The hook would incorrectly only validate the first netlink message in the skb and allow or deny the rest of the messages wi...
6.1CVSS
6.7AI Score
0.001EPSS
An improper authorization flaw was discovered in openstack-selinux's applied policy where it does not prevent a non-root user in a container from privilege escalation. A non-root attacker in one or more Red Hat OpenStack (RHOSP) containers could send messages to the dbus. With access to the dbus, t...
6.5CVSS
6.4AI Score
0.0004EPSS
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).
3.3CVSS
4.1AI Score
0.001EPSS
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).
3.3CVSS
4.1AI Score
0.001EPSS
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).
3.3CVSS
4.1AI Score
0.001EPSS
The CIL compiler in SELinux 3.2 has a heap-based buffer over-read in ebitmap_match_any (called indirectly from cil_check_neverallow). This occurs because there is sometimes a lack of checks for invalid statements in an optional block.
3.3CVSS
4.1AI Score
0.001EPSS