Firejail: Local Privilege Escalation

Background A SUID program that reduces the risk of security breaches by restricting the running environment of untrusted applications using Linux namespaces and seccomp-bpf. Description Firejail does not sufficiently validate the user's environment prior to using it as the root user when using th...

CVE-2023-1998 Spectre v2 SMT mitigations problem in Linux kernel

The Linux kernel allows userspace processes to enable mitigations by calling prctl with PRSETSPECULATIONCTRL which disables the speculation feature as well as by using seccomp. We had noticed that on VMs of at least one major cloud provider, the kernel still left the victim process exposed to...

CVE-2023-1998

CVE-2023-1998 affects the Linux kernel. Root cause: when using legacy IBRS, the IBRS bit is cleared on returning to userspace, disabling implicit STIBP and leaving some spectre-BTI protections ineffective; attackers on a local machine could exploit cross-thread branch target injection despite mit...

CVE-2023-1998

The Linux kernel allows userspace processes to enable mitigations by calling prctl with PRSETSPECULATIONCTRL which disables the speculation feature as well as by using seccomp. We had noticed that on VMs of at least one major cloud provider, the kernel still left the victim process exposed to...

Linux Kernel 6.2 - Userspace Processes To Enable Mitigation

Exploit Title: Linux Kernel 6.2 - Userspace Processes To Enable Mitigation Exploit Author: nu11secur1ty CVE ID: CVE-2023-1998 Description Summary The Linux kernel allows userspace processes to enable mitigations by calling prctl with PRSETSPECULATIONCTRL which disables the speculation feature as...

Linux Kernel 6.2 - Userspace Processes To Enable Mitigation Exploit

Exploit Title: Linux Kernel 6.2 - Userspace Processes To Enable Mitigation Exploit Author: nu11secur1ty CVE ID: CVE-2023-1998 Description Summary The Linux kernel allows userspace processes to enable mitigations by calling prctl with PRSETSPECULATIONCTRL which disables the speculation feature as...

NewStart CGSL CORE 5.05 / MAIN 5.05 : flatpak Vulnerability (NS-SA-2023-0012)

The remote NewStart CGSL host, running version CORE 5.05 / MAIN 5.05, has flatpak packages installed that are affected by a vulnerability: - Flatpak is a system for building, distributing, and running sandboxed desktop applications on Linux. In versions prior to 1.10.4 and 1.12.0, Flatpak apps wi...

PT-2023-4607 · Ibm · Ibm Cognos Analytics On Cloud Pak For Data

Name of the Vulnerable Software and Affected Versions: IBM Cognos Analytics on Cloud Pak for Data version 4.0 Description: The issue is related to insufficient protection of service data when processing the seccomp parameter, which could allow a remote attacker to compromise the security of...

CBL Mariner 2.0 Security Update: kernel (CVE-2022-30594)

The version of kernel installed on the remote CBL Mariner 2.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2022-30594 advisory. - The Linux kernel before 5.17.2 mishandles seccomp permissions. The PTRACESEIZE code path allows attackers to...

Amazon Linux AMI : kernel (ALAS-2023-1701)

The version of kernel installed on the remote host is prior to 4.14.309-159.529. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS-2023-1701 advisory. Detected a few exploitable gadgets that could leak secret memory through a side-channel such as MDS as well as...

kernel security and bug fix update

An update is available for kernel. This update affects Rocky Linux SIG Cloud 8. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list The kernel packages contain the Linux kernel, the core of any Linux...

openshift/apiserver-library-go: Bypass of SCC seccomp profile restrictions

A flaw was found in github.com/openshift/apiserver-library-go, used in OpenShift 4.12 and 4.11, that contains an issue that can allow low-privileged users to set the seccomp profile for pods they control to "unconfined." By default, the seccomp profile used in the restricted-v2 Security Context...

container-tools:rhel8 bug fix and enhancement update

An update is available for module.cockpit-podman, module.fuse-overlayfs, conmon, module.conmon, libslirp, podman, module.udica, module.container-selinux, buildah, crun, module.runc, slirp4netns, oci-seccomp-bpf-hook, module.python-podman, module.buildah, fuse-overlayfs, module.criu,...

container-tools:4.0 bug fix update

An update is available for module.cockpit-podman, module.fuse-overlayfs, conmon, module.conmon, libslirp, podman, module.udica, module.container-selinux, buildah, crun, module.runc, slirp4netns, oci-seccomp-bpf-hook, module.python-podman, module.buildah, fuse-overlayfs, module.criu,...

GO-2023-1549 Improper input validation in github.com/openshift/apiserver-library-go

Low-privileged users can set the seccomp profile for pods they control to "unconfined." By default, the seccomp profile used in the restricted-v2 Security Context Constraint SCC is "runtime/default," allowing users to disable seccomp for pods they can create and modify...

SUSE CVE-2009-0835

The securecomputing function in kernel/seccomp.c in the seccomp subsystem in the Linux kernel 2.6.28.7 and earlier on the x8664 platform, when CONFIGSECCOMP is enabled, does not properly handle 1 a 32-bit process making a 64-bit syscall or 2 a 64-bit process making a 32-bit syscall, which allows...

SUSE CVE-2014-1733

The PointerCompare function in codegen.cc in Seccomp-BPF, as used in Google Chrome before 34.0.1847.131 on Windows and OS X and before 34.0.1847.132 on Linux, does not properly merge blocks, which might allow remote attackers to bypass intended sandbox restrictions by leveraging renderer access...

SUSE CVE-2014-4157

arch/mips/include/asm/threadinfo.h in the Linux kernel before 3.14.8 on the MIPS platform does not configure TIFSECCOMP checks on the fast system-call path, which allows local users to bypass intended PRSETSECCOMP restrictions by executing a crafted application without invoking a trace or audit...

SUSE CVE-2015-2830

arch/x86/kernel/entry64.S in the Linux kernel before 3.19.2 does not prevent the TSCOMPAT flag from reaching a user-mode task, which might allow local users to bypass the seccomp or audit protection mechanism via a crafted application that uses the 1 fork or 2 close system call, as demonstrated b...

SUSE CVE-2017-5206

Firejail before 0.9.44.4, when running on a Linux kernel before 4.8, allows context-dependent attackers to bypass a seccomp-based sandbox protection mechanism via the --allow-debuggers argument...