OESA-2026-1961 openvswitch security update

Open vSwitch provides standard network bridging functions and support for the OpenFlow protocol for remote per-flow control of traffic. Security Fixes: "Description\n===========\n\nMultiple versions of Open vSwitch are vulnerable to crafted FTP payloads\ncausing invalid memory accesses, potential...

OESA-2026-1872 openvswitch security update

Open vSwitch provides standard network bridging functions and support for the OpenFlow protocol for remote per-flow control of traffic. Security Fixes: "Description\n===========\n\nMultiple versions of Open vSwitch are vulnerable to crafted FTP payloads\ncausing invalid memory accesses, potential...

OESA-2026-1871 openvswitch security update

Open vSwitch provides standard network bridging functions and support for the OpenFlow protocol for remote per-flow control of traffic. Security Fixes: "Description\n===========\n\nMultiple versions of Open vSwitch are vulnerable to crafted FTP payloads\ncausing invalid memory accesses, potential...

PT-2026-29690

Name of the Vulnerable Software and Affected Versions Open vSwitch affected versions not specified Description An issue exists in Open vSwitch related to invalid memory access within the conntrack FTP algorithm. Specifically, crafted FTP payloads can trigger invalid memory accesses, potentially...

Security update for openvswitch

This update for openvswitch fixes the following issues: CVE-2024-2182: Fixed insufficient validation of incoming BFD packets may lead to denial of service bsc1255435 Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like YaST onlineupdate or "zypper...

Important: kernel6.12

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: netfilter: nftables: reject duplicate device on updates CVE-2025-38678 In the Linux kernel, the following vulnerability has been resolved: tcpmetrics: use dstdevnetrcu CVE-2025-40075 In the Linux kernel, the...

kernel: Linux kernel (openvswitch): Denial of Service and limited data exposure via improper key length validation

A flaw was found in the Linux kernel's openvswitch virtual environment. A local attacker with low privileges could exploit improper data and key length validation in the set action. This could lead to a denial of service, making the system unresponsive, and potentially result in limited informati...

Moderate: Red Hat Security Advisory: kernel-rt security update

An update for kernel-rt is now available for Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is...

Azure Linux 3.0 Security Update: hyperv-daemons (CVE-2024-27395)

The version of hyperv-daemons installed on the remote Azure Linux 3.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2024-27395 advisory. - In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: Fix...

Side-Channel Attacks on Open VSwitch

Virtualization is widely adopted in cloud systems to manage resource sharing among users. A virtualized environment usually deploys a virtual switch within the host system to enable virtual machines to communicate with each other and with the physical network. The Open vSwitch OVS is one of the...

ROS-20260119-7355

A vulnerability in the ovsvportcmdfillinfo function of the net/openvswitch/datapath.c module of the Open vSwitch router support module of the Linux kernel is related to the reuse of previously freed memory. Exploitation of the vulnerability may allow an attacker to affect confidentiality, integri...

CVE-2025-68785

A slab-out-of-bounds read vulnerability was found in the Linux kernel's Open vSwitch OVS module. The pushnsh action does not validate the middle nested attribute OVSKEYATTRNSH between the outer action and inner key attributes. When the middle attribute has an incorrect size, the nladata unwrap...

AZL-74336 CVE-2025-68785 affecting package kernel for versions less than 6.6.121.1-1

In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: fix middle attribute validation in pushnsh action The pushnsh action structure looks like this: OVSACTIONATTRPUSHNSHOVSKEYATTRNSHOVSNSHKEYATTRBASE,... The outermost OVSACTIONATTRPUSHNSH attribute is OK'ed by the...

UBUNTU-CVE-2025-68785

In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: fix middle attribute validation in pushnsh action The pushnsh action structure looks like this: OVSACTIONATTRPUSHNSHOVSKEYATTRNSHOVSNSHKEYATTRBASE,... The outermost OVSACTIONATTRPUSHNSH attribute is OK'ed by the...

CVE-2025-68785 net: openvswitch: fix middle attribute validation in push_nsh() action

In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: fix middle attribute validation in pushnsh action The pushnsh action structure looks like this: OVSACTIONATTRPUSHNSHOVSKEYATTRNSHOVSNSHKEYATTRBASE,... The outermost OVSACTIONATTRPUSHNSH attribute is OK'ed by the...

SUSE-SU-2026:20061-1 Security update for openvswitch

This update for openvswitch fixes the following issues: Update OpenvSwitch to v3.1.7 and OVN to v23.03.3: Security issues fixed: - CVE-2023-3966: ovs: invalid memory access and potential denial of service via specially crafted Geneve packets bsc1219465. - CVE-2023-5366: ovs: OpenFlow rules may be...

USN-7907-5: Linux kernel kernel vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - Cryptographic API; - ACPI drivers; - Hardware monitoring drivers; - InfiniBand drivers; - Mailbox framework; -...

CVE-2023-53843 net: openvswitch: reject negative ifindex

In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: reject negative ifindex Recent changes in net-next commit 759ab1edb56c "net: store netdevs in an xarray" refactored the handling of pre-assigned ifindexes and let syzbot surface a latent problem in ovs. ovs does...

UBUNTU-CVE-2025-40254

In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: remove never-working support for setting nsh fields The validation of the setnsh... action is completely wrong. It runs through the nshkeyputfromnlattr function that is the same function that validates NSH keys...

EUVD-2025-201203

In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: remove never-working support for setting nsh fields The validation of the setnsh... action is completely wrong. It runs through the nshkeyputfromnlattr function that is the same function that validates NSH keys...