CVE-2022-0492

A vulnerability was found in the Linux kernel’s cgroupreleaseagentwrite in the kernel/cgroup/cgroup-v1.c function. This flaw, under certain circumstances, allows the use of the cgroups v1 releaseagent feature to escalate privileges and bypass the namespace isolation unexpectedly...

CVE-2022-0492

A vulnerability was found in the Linux kernel’s cgroupreleaseagentwrite in the kernel/cgroup/cgroup-v1.c function. This flaw, under certain circumstances, allows the use of the cgroups v1 releaseagent feature to escalate privileges and bypass the namespace isolation unexpectedly. Mitigation...

Docker cgroups Container Escape

This exploit module takes advantage of a Docker image which has either the privileged flag, or SYSADMIN Linux capability. If the host kernel is vulnerable, its possible to escape the Docker image and achieve root on the host operating system. A vulnerability was found in the Linux kernel's...

UBUNTU-CVE-2021-41805

HashiCorp Consul Enterprise before 1.8.17, 1.9.x before 1.9.11, and 1.10.x before 1.10.4 has Incorrect Access Control. An ACL token with the default operator:write permissions in one namespace can be used for unintended privilege escalation in a different namespace...

Oracle Linux 7 : docker-cli / docker-engine (ELSA-2020-5966)

The remote Oracle Linux 7 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2020-5966 advisory. - Fix for CVE-2020-15257 - Fix for CVE-2020-15157 - Address CVE-2020-16845 - update to 19.03.11 for CVE-2020-13401 - apply...

Privilege Escalation

kernel-rt is vulnerable to privilege escalation. The vulnerability exists as a deficiency was found in the Linux kernel signals implementation. The killsomethinginfo function did not check if a process was outside the caller's namespace before sending the kill signal, making it possible to kill...

Moderate: Red Hat Bug Fix Advisory: Red Hat OpenStack Platform 14 bug fix and enhancement advisory

Updated packages that resolve various issues are now available for Red Hat OpenStack Platform 14.0 Rocky for RHEL 7. Red Hat OpenStack Platform provides the facilities for building, deploying and monitoring a private or public infrastructure-as-a-service IaaS cloud running on commonly available...

CVE-2018-20321

An issue was discovered in Rancher 2 through 2.1.5. Any project member with access to the default namespace can mount the netes-default service account in a pod, and then use that pod to execute administrative privileged commands against the k8s cluster. This could be mitigated by isolating the...

RSAC 2019: Container Escape Hack Targets Vulnerable Linux Kernel

Researchers at CyberArk have created a proof-of-concept attack that allows adversaries to bypass container security, escape the container and compromise an entire host system. However, the attack scenario is limited, in that a successful attack depends on unpatched vulnerabilities to be present i...

Kicking the Rims – A Guide for Securely Writing and Auditing Chrome Extensions

Table of Contents A Thin Layer of Chrome Extension Security Prior-Art Isolated But Talkative Worlds A Quick Disclaimer Home is Where the manifest.json Is - The Basic Extension Layout The Extension Architecture, Namespace Isolation and the DOM The Same Origin Policy SOP in the Chrome Extension Wor...

kernel: Missing namespace check in net/netlink/af_netlink.c allows for network monitors to observe systemwide activity

The netlinkdelivertapskb function in net/netlink/afnetlink.c in the Linux kernel, through 4.14.4, does not restrict observations of Netlink messages to a single net namespace, when CONFIGNLMON is enabled. This allows local users to obtain sensitive information by leveraging the CAPNETADMIN...

kernel: Missing namespace check in net/netlink/af_netlink.c allows for network monitors to observe systemwide activity

The netlinkdelivertapskb function in net/netlink/afnetlink.c in the Linux kernel, through 4.14.4, does not restrict observations of Netlink messages to a single net namespace, when CONFIGNLMON is enabled. This allows local users to obtain sensitive information by leveraging the CAPNETADMIN...

kernel: Missing namespace check in net/netlink/af_netlink.c allows for network monitors to observe systemwide activity

The netlinkdelivertapskb function in net/netlink/afnetlink.c in the Linux kernel, through 4.14.4, does not restrict observations of Netlink messages to a single net namespace, when CONFIGNLMON is enabled. This allows local users to obtain sensitive information by leveraging the CAPNETADMIN...

Linux kernel access restriction bypass vulnerability

Linux kernel is the kernel used by Linux, the open source operating system released by the Linux Foundation in the United States. A security vulnerability exists in the net/netfilter/nfnetlinkcthelper.c file in Linux kernel 4.14.4 and earlier, which stems from the nfnlcthelperlist data structure...

CVE-2016-3708

Red Hat OpenShift Enterprise 3.2, when multi-tenant SDN is enabled and a build is run in a namespace that would normally be isolated from pods in other namespaces, allows remote authenticated users to access network resources on restricted pods via an s2i build with a builder image that 1 contain...

kernel: 'kill sig -1' must only apply to caller's pid namespace

The killsomethinginfo function in kernel/signal.c in the Linux kernel before 2.6.28 does not consider PID namespaces when processing signals directed to PID -1, which allows local users to bypass the intended namespace isolation, and send arbitrary signals to all processes in all namespaces, via ...

CVE-2009-1338

The killsomethinginfo function in kernel/signal.c in the Linux kernel before 2.6.28 does not consider PID namespaces when processing signals directed to PID -1, which allows local users to bypass the intended namespace isolation, and send arbitrary signals to all processes in all namespaces, via ...

CVE-2009-1338

The CVE-2009-1338 issue is confirmed in the Linux kernel prior to 2.6.28, where the kill_something_info() function in kernel/signal.c did not respect PID namespaces when handling signals directed to PID -1. This allowed a local attacker to bypass namespace isolation and send signals to processes ...