MGASA-2020-0050 Updated opencontainers-runc packages fix security vulnerability

runc through 1.0.0-rc8, as used in Docker through 19.03.2-ce and other products, allows AppArmor restriction bypass because libcontainer/rootfslinux.go incorrectly checks mount targets, and thus a malicious Docker image can mount over a /proc directory CVE-2019-16884...

Sandbox Restrictions Bypass

github.com/opencontainers/runc is vulnerable to sandbox restrictions bypass. An attacker who controls the container image for two containers that share a volume will be able to mount arbitrary volumes in a race condition during container initialization via a symlink that is added to the rootfs...

RancherOS < 1.5.1 Local Command Execution

The remote host is running a version of RancherOS prior to v1.5.1, hence it is vulnerable to a Local Command Execution Vulnerability. Opencontainers runc is prone to a local command-execution vulnerability. A local attacker can exploit this issue to execute arbitrary commands with root privileges...

Arbitrary File Read

github.com/opencontainers/runc is vulnerable to arbitrary file read. The vulnerability exists as the AppAmor restrictions can be bypassed due to incorrect mount targets check, allowing a malicious Docker image to be mounted over a /proc directory...

Updated opencontainers-runc packages fix security vulnerability

Not using pivotroot2 leaves the host /proc around in the mount namespace so that it is possible to mount another /proc without any other submount, even if /proc in the container is not fully visible. This flaw allows an attacker to read and modify some parts of the Linux kernel memory rhbz1663068...

Information Disclosure

github.com/opencontainers/runc is vulnerable to information disclosure attacks. These attacks are possible because a run exec command can be ptraced by the pid 1 of the container. Using this, it allows attackers to gain access to the file-descriptors of new processes during initialization. It may...

Updated docker packages fix security vulnerabilities

Updated docker packages fix security vulnerabilities: Lack of content verification in docker allowed a remote attacker to cause a Denial of Service via a crafted image layer payload, aka gzip bombing CVE-2017-14992. The DefaultLinuxSpec function in oci/defaults.go docker did not block /proc/scsi...

Privilege Escalation

github.com/opencontainers/runc is vulnerable to privilege escalation attacks. These attacks are possible because github.com/opencontainers/runc treats a numeric UID as a potential username. This allows local users to gain privileges though a numeric username in the password file. This transitivel...

Access Restriction Bypass

github.com/opencontainers/runc is vulnerable to attackers bypassing access restrictions. This is possible when ambient capabilities are enabled but misconfigured. It would allow malicious images to bypass user permissions and access other files within the file system and other mounted volumes. Th...

Information Disclosure

github.com/opencontainers/runc is vulnerable to information disclosure attacks. These attacks are possible because a run exec command can be ptraced by the pid 1 of the container. Using this, it allows attackers to gain access to the file-descriptors of new processes during initialization. It may...

Docker Patches Privilege Escalation Vulnerability

Docker has patched a privilege escalation vulnerability CVE-2016-9962 that could lead to container escapes, allowing a hacker to affect operations of a host from inside a container. The vulnerability is rated high severity by some Linux distributions such as Arch Linux, which traces the problem t...