BIT-CILIUM-2025-30162 East-west traffic not subject to egress policy enforcement for requests via Gateway API load balancers

Cilium is a networking, observability, and security solution with an eBPF-based dataplane. For Cilium users who use Gateway API for Ingress for some services and use LB-IPAM or BGP for LB Service implementation and use network policies to block egress traffic from workloads in a namespace to...

BIT-CILIUM-2025-30163 Node based network policies may incorrectly allow workload traffic

Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Node based network policies fromNodes and toNodes will incorrectly permit traffic to/from non-node endpoints that share the labels specified in fromNodes and toNodes sections of network policies. Node based...

BIT-CILIUM-OPERATOR-2025-30163 Node based network policies may incorrectly allow workload traffic

Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Node based network policies fromNodes and toNodes will incorrectly permit traffic to/from non-node endpoints that share the labels specified in fromNodes and toNodes sections of network policies. Node based...

CVE-2025-30163 Node based network policies may incorrectly allow workload traffic

Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Node based network policies fromNodes and toNodes will incorrectly permit traffic to/from non-node endpoints that share the labels specified in fromNodes and toNodes sections of network policies. Node based...

CVE-2025-30163

CVE-2025-30163 affects Cilium’s node-based network policies: policies using fromNodes/toNodes may incorrectly permit traffic to/from non-node endpoints sharing the same labels. Affected versions are Cilium v1.16.0–v1.16.7 and v1.17.0–v1.17.1; the issue is fixed in v1.16.8 and v1.17.2. Root cause:...

CVE-2025-30162

Cilium CVE-2025-30162 affects the eBPF-based dataplane in Cilium when Gateway API for Ingress is used with LB-IPAM or BGP LB services and namespace egress policies. The issue allows egress traffic from workloads governed by such policies to LoadBalancers configured by Gateway resources, while Loa...

CVE-2025-30163: Incorrect Authorization

Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Node based network policies fromNodes and toNodes will incorrectly permit traffic to/from non-node endpoints that share the labels specified in fromNodes and toNodes sections of network policies. Node based...

PT-2025-12673

Name of the Vulnerable Software and Affected Versions Cilium versions 1.16.0 through 1.16.7 Cilium versions 1.17.0 through 1.17.1 Description The issue affects Cilium, a networking, observability, and security solution with an eBPF-based dataplane. Node-based network policies, specifically those...

bcc bug fix update

An update is available for bcc. This update affects Rocky Linux 9. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list BPF Compiler Collection BCC is a toolkit for easier creation of efficient kernel...

A Bootiful Podcast: Johannes Bechberger, Java engineer at SAP

Hi, Spring fans! In this installment I talk to Johannes Bechberger, Java engineer working on profilers and their underlying technology in the SapMachine team at SAP. His work today comprises many open-source contributions and his blog, where he regularly writes on in-depth profiling and debugging...

Linux Distros Unpatched Vulnerability : CVE-2021-4159

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A vulnerability was found in the Linux kernel's EBPF verifier when handling internal data structures. Internal memory locations could be returned to userspace. ...

Linux Distros Unpatched Vulnerability : CVE-2022-0500

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A flaw was found in unrestricted eBPF usage by the BPFBTFLOAD, leading to a possible out-of-bounds memory write in the Linux kernel's BPF subsystem due to the w...

Linux Distros Unpatched Vulnerability : CVE-2021-4204

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - An out-of-bounds OOB memory access flaw was found in the Linux kernel's eBPF due to an Improper Input Validation. This flaw allows a local attacker with a speci...

Linux Distros Unpatched Vulnerability : CVE-2021-34866

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - This vulnerability allows local attackers to escalate privileges on affected installations of Linux Kernel 5.14-rc3. An attacker must first obtain the ability t...

Linux Distros Unpatched Vulnerability : CVE-2021-4135

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A memory leak vulnerability was found in the Linux kernel's eBPF for the Simulated networking device driver in the way user uses BPF for the device such that...

Linux Distros Unpatched Vulnerability : CVE-2023-39191

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - An improper input validation flaw was found in the eBPF subsystem in the Linux kernel. The issue occurs due to a lack of proper validation of dynamic pointers...

Linux Distros Unpatched Vulnerability : CVE-2021-3600

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - It was discovered that the eBPF implementation in the Linux kernel did not properly track bounds information for 32 bit registers when performing div and mod...

Linux Distros Unpatched Vulnerability : CVE-2022-0264

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A vulnerability was found in the Linux kernel's eBPF verifier when handling internal data structures. Internal memory locations could be returned to userspace. ...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: bpf: Mark the bpf prog stack with kmsanunpoisonmemory in interpreter mode. syzbot reported uninitialized memory usage during maplookup,deleteelem. ========== BUG: KMSAN: uninitvalue in devmaplookupelem kernel/bpf/devmap.c:441...

CVE-2024-37307

Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Starting in version 1.13.0 and prior to versions 1.13.7, 1.14.12, and 1.15.6, the output of cilium-bugtool can contain sensitive data when the tool is run with the --envoy-dump flag set against Cilium...