Breaking the Bulkhead: Demystifying Cross-Namespace Reference Vulnerabilities in Kubernetes Operators

Kubernetes Operators, automated tools designed to manage application lifecycles within Kubernetes clusters, extend the functionalities of Kubernetes, and reduce the operational burden on human engineers. While Operators significantly simplify DevOps workflows, they introduce new security risks. I...

SUSE CVE-2025-38097

In the Linux kernel, the following vulnerability has been resolved: espintcp: remove encap socket caching to avoid reference leak The current scheme for caching the encap socket can lead to reference leaks when we try to delete the netns. The reference chain is: xfrmstate - enacpsk - netns Since...

USN-7585-6 linux-bluefield vulnerabilities

It was discovered that the CIFS network file system implementation in the Linux kernel did not properly verify the target namespace when handling upcalls. An attacker could use this to expose sensitive information. CVE-2025-2312 Several security issues were discovered in the Linux kernel. An...

CVE-2025-38115

In the Linux kernel, the following vulnerability has been resolved: netsched: schsfq: fix a potential crash on gsoskb handling SFQ has an assumption of always being able to queue at least one packet. However, after the blamed commit, sch-q.len can be inflated by packets in sch-gsoskb, and an...

DEBIAN-CVE-2025-38097

In the Linux kernel, the following vulnerability has been resolved: espintcp: remove encap socket caching to avoid reference leak The current scheme for caching the encap socket can lead to reference leaks when we try to delete the netns. The reference chain is: xfrmstate - enacpsk - netns Since...

AZL-72584 CVE-2025-38097 affecting package kernel 5.15.200.1-1

In the Linux kernel, the following vulnerability has been resolved: espintcp: remove encap socket caching to avoid reference leak The current scheme for caching the encap socket can lead to reference leaks when we try to delete the netns. The reference chain is: xfrmstate - enacpsk - netns Since...

linux-pam: Linux-pam directory Traversal

A flaw was found in linux-pam. The module pamnamespace may use access user-controlled paths without proper protection, allowing local users to elevate their privileges to root via multiple symlink attacks and race conditions...

linux-pam: Linux-pam directory Traversal

A flaw was found in linux-pam. The module pamnamespace may use access user-controlled paths without proper protection, allowing local users to elevate their privileges to root via multiple symlink attacks and race conditions...

USN-7606-1 linux-oem-6.11 vulnerabilities

It was discovered that the CIFS network file system implementation in the Linux kernel did not properly verify the target namespace when handling upcalls. An attacker could use this to expose sensitive information. CVE-2025-2312 Several security issues were discovered in the Linux kernel. An...

USN-7585-4 linux-azure-5.4 vulnerabilities

It was discovered that the CIFS network file system implementation in the Linux kernel did not properly verify the target namespace when handling upcalls. An attacker could use this to expose sensitive information. CVE-2025-2312 Several security issues were discovered in the Linux kernel. An...

📄 libxslt xsltParseStylesheetProcess Use-After-Free

There is a use-after-free issue in libxslt read on a namespace URL stored in exclPrefixTab. The issue was reproduced on the latest Git version. The proof of concept and ASAN log are provided at the end of the report. There is a use-after-free issue in libxslt read on a namespace URL stored in...

USN-7595-2 linux-realtime vulnerabilities

It was discovered that the CIFS network file system implementation in the Linux kernel did not properly verify the target namespace when handling upcalls. An attacker could use this to expose sensitive information. CVE-2025-2312 Several security issues were discovered in the Linux kernel. An...

USN-7595-1 linux, linux-aws, linux-aws-6.8, linux-gke, linux-gkeop, linux-ibm, linux-lowlatency, linux-lowlatency-hwe-6.8, linux-nvidia, linux-nvidia-6.8, linux-nvidia-lowlatency, linux-oem-6.8 vulnerabilities

It was discovered that the CIFS network file system implementation in the Linux kernel did not properly verify the target namespace when handling upcalls. An attacker could use this to expose sensitive information. CVE-2025-2312 Several security issues were discovered in the Linux kernel. An...

kernel: tipc: fix use-after-free Read in tipc_named_reinit

A vulnerability was found in the Linux kernel's Transparent Inter-Process Communication TIPC subsystem, allowing a use-after-free condition during the cleanup process. This issue arises when the kernel's work queue mechanism does not properly synchronize the destruction of TIPC namespaces with th...

kernel: tipc: fix use-after-free Read in tipc_named_reinit

A vulnerability was found in the Linux kernel's Transparent Inter-Process Communication TIPC subsystem, allowing a use-after-free condition during the cleanup process. This issue arises when the kernel's work queue mechanism does not properly synchronize the destruction of TIPC namespaces with th...

kernel: tipc: fix use-after-free Read in tipc_named_reinit

A vulnerability was found in the Linux kernel's Transparent Inter-Process Communication TIPC subsystem, allowing a use-after-free condition during the cleanup process. This issue arises when the kernel's work queue mechanism does not properly synchronize the destruction of TIPC namespaces with th...

kernel: tipc: fix use-after-free Read in tipc_named_reinit

A vulnerability was found in the Linux kernel's Transparent Inter-Process Communication TIPC subsystem, allowing a use-after-free condition during the cleanup process. This issue arises when the kernel's work queue mechanism does not properly synchronize the destruction of TIPC namespaces with th...

Moderate: Red Hat Security Advisory: Red Hat OpenShift GitOps security update

Red Hat OpenShift GitOps v1.16.2 release An update is now available for Red Hat OpenShift GitOps. Security Fixes: openshift-gitops-operator-container: Namespace Isolation Break gitops-1.16 Bug Fixes: Gitops operator is not accepting regular expression in sourceNamespaces - Application in...

USN-7592-1 linux-aws-5.15, linux-gcp-5.15, linux-ibm-5.15, linux-lowlatency-hwe-5.15, linux-oracle-5.15 vulnerabilities

Michael Randrianantenaina discovered that the Bluetooth driver in the Linux Kernel contained an improper access control vulnerability. A nearby attacker could use this to connect a rougue device and possibly execute arbitrary code. CVE-2024-8805 It was discovered that the CIFS network file system...

PT-2025-28875 · Linux · Linux Kernel

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: A flaw exists in the Linux kernel related to userns and mnt idmap leaks within the open tree attr2 function. Specifically, a failure in do mount setattr does not release the mnt userns...