Ubuntu 22.04 LTS : Linux kernel (Intel IoTG) vulnerabilities (USN-6795-1)

The remote Ubuntu 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6795-1 advisory. Zheng Wang discovered that the Broadcom FullMAC WLAN driver in the Linux kernel contained a race condition during device removal, leading to a use-...

The vulnerability of the macvlan_handle_frame() function in the drivers/net/macvlan.c file of the Linux kernel’s networking component allows a hacker to cause a service failure.

The vulnerability of the macvlanhandleframe function in the drivers/net/macvlan.c file of the Linux kernel’s networking component is related to a memory leak. Exploiting this vulnerability allows an attacker to cause a service failure...

BIT-HUBBLE-RELAY-2023-27593 cilium-agent container can access the host via `hostPath` mount

Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Prior to versions 1.11.15, 1.12.8, and 1.13.1, an attacker with access to a Cilium agent pod can write to /opt/cni/bin due to a hostPath mount of that directory in the agent pod. By replacing the CNI binary...

BIT-HUBBLE-RELAY-2023-27594 Cilium vulnerable to potential network policy bypass when routing IPv6 traffic

Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Prior to versions 1.11.15, 1.12.8, and 1.13.1, under specific conditions, Cilium may misattribute the source IP address of traffic to a cluster, identifying external traffic as coming from the host on which...

BIT-HUBBLE-RELAY-2023-27595 Cilium eBPF filters may be temporarily removed during agent restart

Cilium is a networking, observability, and security solution with an eBPF-based dataplane. In version 1.13.0, when Cilium is started, there is a short period when Cilium eBPF programs are not attached to the host. During this period, the host does not implement any of Cilium's featureset. This ca...

BIT-HUBBLE-RELAY-2023-29002 Debug mode leaks confidential data in Cilium

Cilium is a networking, observability, and security solution with an eBPF-based dataplane. When run in debug mode, Cilium will log the contents of the cilium-secrets namespace. This could include data such as TLS private keys for Ingress and GatewayAPI resources. An attacker with access to debug...

BIT-HUBBLE-RELAY-2023-30851 Potential HTTP policy bypass when using header rules in Cilium

Cilium is a networking, observability, and security solution with an eBPF-based dataplane. This issue only impacts users who have a HTTP policy that applies to multiple toEndpoints AND have an allow-all rule in place that affects only one of those endpoints. In such cases, a wildcard rule will be...

BIT-HUBBLE-RELAY-2023-39347 Cilium NetworkPolicy bypass via pod labels

Cilium is a networking, observability, and security solution with an eBPF-based dataplane. An attacker with the ability to update pod labels can cause Cilium to apply incorrect network policies. This issue arises due to the fact that on pod update, Cilium incorrectly uses user-provided pod labels...

BIT-HUBBLE-RELAY-2023-41332 Denial of service via Kubernetes annotations in specific Cilium configurations

Cilium is a networking, observability, and security solution with an eBPF-based dataplane. In Cilium clusters where Cilium's Layer 7 proxy has been disabled, creating workloads with policy.cilium.io/proxy-visibility annotations in Cilium = v1.13 or io.cilium.proxy-visibility annotations in Cilium...

BIT-HUBBLE-RELAY-2024-25631

Cilium is a networking, observability, and security solution with an eBPF-based dataplane. For Cilium users who have enabled an external kvstore and Wireguard transparent encryption, traffic between pods in the affected cluster is not encrypted. This issue affects Cilium v1.14 before v1.14.7 and...

BIT-HUBBLE-RELAY-2024-28249

Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Prior to versions 1.13.13, 1.14.8, and 1.15.2, in Cilium clusters with IPsec enabled and traffic matching Layer 7 policies, IPsec-eligible traffic between a node's Envoy proxy and pods on other nodes is sen...

BIT-HUBBLE-RELAY-2024-28250

Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Starting in version 1.14.0 and prior to versions 1.14.8 and 1.15.2, In Cilium clusters with WireGuard enabled and traffic matching Layer 7 policies Wireguard-eligible traffic that is sent between a node's...

USN-6777-4: Linux kernel (HWE) vulnerabilities

Zheng Wang discovered that the Broadcom FullMAC WLAN driver in the Linux kernel contained a race condition during device removal, leading to a use- after-free vulnerability. A physically proximate attacker could possibly use this to cause a denial of service system crash. CVE-2023-47233 Several...

USN-6777-4 linux-aws-hwe vulnerabilities

Zheng Wang discovered that the Broadcom FullMAC WLAN driver in the Linux kernel contained a race condition during device removal, leading to a use- after-free vulnerability. A physically proximate attacker could possibly use this to cause a denial of service system crash. CVE-2023-47233 Several...

SUSE CVE-2023-52778

In the Linux kernel, the following vulnerability has been resolved: mptcp: deal with large GSO size After the blamed commit below, the TCP sockets and the MPTCP subflows can build egress packets larger than 64K. That exceeds the maximum DSS data size, the length being misrepresent on the wire and...

Ubuntu 16.04 LTS : Linux kernel (HWE) vulnerabilities (USN-6777-4)

The remote Ubuntu 16.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6777-4 advisory. Zheng Wang discovered that the Broadcom FullMAC WLAN driver in the Linux kernel contained a race condition during device removal, leading to a use-...

kernel: net/mlx5e: fix memory leak in mlx5e_ptp_open

A flaw was found in the Linux kernel net/mlx5e Ethernet driver’s mlx5eptpopen function. When memory allocation via kvzallocnode or kvzalloc fails, previously allocated resources c or cparams were not properly freed, leading to a memory leak in the error path. An unprivileged local user interactin...

USN-6777-3: Linux kernel (GCP) vulnerabilities

Zheng Wang discovered that the Broadcom FullMAC WLAN driver in the Linux kernel contained a race condition during device removal, leading to a use- after-free vulnerability. A physically proximate attacker could possibly use this to cause a denial of service system crash. CVE-2023-47233 Several...

USN-6777-3 linux-gcp vulnerabilities

Zheng Wang discovered that the Broadcom FullMAC WLAN driver in the Linux kernel contained a race condition during device removal, leading to a use- after-free vulnerability. A physically proximate attacker could possibly use this to cause a denial of service system crash. CVE-2023-47233 Several...

CVE-2021-47306

In the Linux kernel, the following vulnerability has been resolved: net: fddi: fix UAF in fzaprobe fp is netdev private data and it cannot be used after freenetdev call. Using fp after freenetdev can cause UAF bug. Fix it by moving freenetdev after error message. TURBOchannel adapter"...