Ubuntu Core
Monthly
An issue was discovered in AppArmor before 2.12. Rated medium severity (CVSS 5.9), this vulnerability is remotely exploitable, no authentication required. This Improper Privilege Management vulnerability could allow attackers to escalate privileges to gain unauthorized elevated access.
The overlayfs implementation in the Linux kernel through 4.5.2 does not properly restrict the mount namespace, which allows local users to gain privileges by mounting an overlayfs filesystem on top. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. Public exploit code available.
The overlayfs implementation in the Linux kernel through 4.5.2 does not properly maintain POSIX ACL xattr data, which allows local users to gain privileges by leveraging a group-writable setgid. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. Public exploit code available.
The do_setup_env function in session.c in sshd in OpenSSH through 7.2p2, when the UseLogin feature is enabled and PAM is configured to read .pam_environment files in user home directories, allows. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.
An issue was discovered in AppArmor before 2.12. Rated medium severity (CVSS 5.9), this vulnerability is remotely exploitable, no authentication required. This Improper Privilege Management vulnerability could allow attackers to escalate privileges to gain unauthorized elevated access.
The overlayfs implementation in the Linux kernel through 4.5.2 does not properly restrict the mount namespace, which allows local users to gain privileges by mounting an overlayfs filesystem on top. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. Public exploit code available.
The overlayfs implementation in the Linux kernel through 4.5.2 does not properly maintain POSIX ACL xattr data, which allows local users to gain privileges by leveraging a group-writable setgid. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. Public exploit code available.
The do_setup_env function in session.c in sshd in OpenSSH through 7.2p2, when the UseLogin feature is enabled and PAM is configured to read .pam_environment files in user home directories, allows. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.