CVE-2026-5367 Ovn: ovn: information disclosure via crafted dhcpv6 packets

A flaw was found in OVN Open Virtual Network. A remote attacker, by sending crafted DHCPv6 Dynamic Host Configuration Protocol for IPv6 SOLICIT packets with an inflated Client ID length, could cause the ovn-controller to read beyond the bounds of a packet. This out-of-bounds read can lead to the...

CVE-2026-5367: Improper Handling of Length Parameter Inconsistency

A flaw was found in OVN Open Virtual Network. A remote attacker, by sending crafted DHCPv6 Dynamic Host Configuration Protocol for IPv6 SOLICIT packets with an inflated Client ID length, could cause the ovn-controller to read beyond the bounds of a packet. This out-of-bounds read can lead to the...

OVN 安全漏洞

OVN is an open-source data center virtualization platform based on virtual network technology. OVN has a security vulnerability that stems from the client ID length expansion when processing specially crafted DHCPv6 SOLICIT packets. This vulnerability could allow remote attackers to perform...

CVE-2026-5265: Improper Handling of Length Parameter Inconsistency

When generating an ICMP Destination Unreachable or Packet Too Big response, the handler copies a portion of the original packet into the ICMP error body using the IP header's self-declared total length iptotlen for IPv4, ip6plen for IPv6 without validating it against the actual packet buffer size...

Linux Distros Unpatched Vulnerability : CVE-2026-5265

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - When generating an ICMP Destination Unreachable or Packet Too Big response, the handler copies a portion of the original packet into the ICMP error body using t...

UBUNTU-CVE-2026-5367

A flaw was found in OVN Open Virtual Network. A remote attacker, by sending crafted DHCPv6 Dynamic Host Configuration Protocol for IPv6 SOLICIT packets with an inflated Client ID length, could cause the ovn-controller to read beyond the bounds of a packet. This out-of-bounds read can lead to the...

SUSE-SU-2026:20049-1 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...

PT-2026-37102

Name of the Vulnerable Software and Affected Versions Incus versions prior to 7.0.0 Description Broken TLS validation logic in the OVN database connection logic allows connections to an attacker's OVN database. The OVN client implementations disable standard Go TLS server verification and use a...

EUVD-2021-1266

Malware in sbrugna...

EUVD-2022-15685

Malicious code in bioql PyPI...

Fedora: Security Advisory (FEDORA-2025-46e6440101)

The remote host is missing an update for the SPDX-FileCopyrightText: 2025 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

Ubuntu: Security Advisory (USN-7396-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2025 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

USN-7396-1: OVN vulnerability

Marius Berntsberg, Trygve Vea, Tore Anderson, Rodolfo Alonso, Jay Faulkner, and Brian Haley discovered that OVN incorrectly handled certain crafted UDP packets. A remote attacker could possibly use this issue to bypass egress ACL rules...

Ubuntu 20.04 LTS / 22.04 LTS / 24.04 LTS / 24.10 : OVN vulnerability (USN-7396-1)

The remote Ubuntu 20.04 LTS / 22.04 LTS / 24.04 LTS / 24.10 host has packages installed that are affected by a vulnerability as referenced in the USN-7396-1 advisory. Marius Berntsberg, Trygve Vea, Tore Anderson, Rodolfo Alonso, Jay Faulkner, and Brian Haley discovered that OVN incorrectly handle...

ROS-20250307-07

A vulnerability in the OVN Open Virtual Network abstraction support system is related to bypassing the output access control lists ACLs in OVN deployments using crafted UDP packets. Exploitation The vulnerability could allow an attacker acting remotely to gain unauthorized access to the Virtual...

RHSA-2025:1095 Red Hat Security Advisory: ovn23.09 security update

Bulletin has no description...

RHSA-2025:1092 Red Hat Security Advisory: ovn22.12 security update

Bulletin has no description...

RHSA-2025:1089 Red Hat Security Advisory: ovn22.03 security update

Bulletin has no description...

RHSA-2025:1090 Red Hat Security Advisory: ovn22.06 security update

Bulletin has no description...

RHEL 9 : ovn22.06 (RHSA-2025:1090)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2025:1090 advisory. OVN, the Open Virtual Network, is a system to support virtual network abstraction. OVN complements the existing capabilities of OVS to add native...