OVSwrap

OVSwrap CVE-2026-64531 Analisi !WARNING La PoC è fornita esclusivamente per aiutare difensori, manutentori e team di sicurezza autorizzati a validare patch, mitigazioni, rilevamenti ed esposizione su sistemi di loro proprietà o per cui hanno esplicita autorizzazione al test. Sei l'unico...

CVE-2026-64531

CVE-2026-64531 — OVSwrap PoC di escalation dei privilegi locali utente normale → root nel modulo Open vSwitch del kernel Linux. Sfrutta il wrap-around intero del campo nlalen a 16 bit per passare da utente normale a root. Sintesi della vulnerabilità Quando il flusso di action nidificate generato ...

CVE-2026-64531

🔥 CVE-2026-64531 — OVSwrap Corruzione della memoria Open vSwitch nel kernel Linux 🩸 Panoramica della vulnerabilità CVE-2026-64531 è una vulnerabilità di sicurezza che interessa il sottosistema di rete Open vSwitch OVS del kernel Linux. Il difetto risiede nella gestione degli attributi Netlink...

OVSwrap-CVE-2026-64531-Mitigation-Tool

Strumento di mitigazione OVSwrap CVE-2026-64531 Un semplice script che rileva e mitiga la vulnerabilità OVSwrap che interessa i moduli del kernel Open vSwitch. Caratteristiche Rileva i moduli Open vSwitch vulnerabili Determina se il modulo è caricato Blocca il caricamento automatico Rimuove il...

Detection-and-Mitigation-for-CVE-2022-2639

Detection-and-Mitigation-for-CVE-2022-2639 Descrizione Il modulo kernel Open vSwitch consente un controllo flessibile dallo spazio utente sull'elaborazione dei pacchetti a livello di flusso su dispositivi di rete selezionati. Può essere utilizzato per implementare uno switch Ethernet semplice, il...

ovswrap-poc

ovswrap-poc CVE-2026-64531 OVSwrap PoC - Linux kernel Open vSwitch LPE; per la validazione delle patch e la ricerca sulla sicurezza...

ovswrap

OVSwrap — Sito di monitoraggio dell'overflow del datapath Open vSwitch nel kernel Linux Codice sorgente del tracker dello stato delle patch OVSwrap : un sito a pagina singola che registra quali distribuzioni hanno rilasciato una correzione per l'overflow del datapath Open vSwitch nel kernel Linux...

The vulnerability of the validate_set() function in the net_openvswitch/flow_netlink.c module, which supports Open vSwitch routers in Linux operating systems, allows a attacker to compromise the confidentiality and accessibility of protected information.

The vulnerability of the validateset function in the netopenvswitch/flownetlink.c module, which supports Open vSwitch routers in Linux operating systems, relates to the occurrence of operations outside the buffer in memory. Exploiting this vulnerability could allow an attacker to compromise the...

The vulnerability of the `ovs_netdev_tunnelDestroy()` function in the `net/openvswitch/vport-netdev.c` file, which is part of the Open vSwitch router support in the Linux operating system, allows a attacker to compromise the confidentiality, integrity, and accessibility of protected information.

The vulnerability of the ovsnetdevtunnelDestroy function in the net/openvswitch/vport-netdev.c module, which supports Open vSwitch routers in the Linux operating system, is related to the lack of protection for sensitive data. Exploiting this vulnerability could allow an attacker to compromise th...

kernel: net: openvswitch: reject oversized nested action attrs

A flaw was found in Open vSwitch in the Linux kernel. Improper handling of oversized nested action attributes can lead to a truncated length field, which could be exploited by a local attacker to alter kernel memory. This alteration might result in the disclosure of sensitive information or a loc...

kernel: net: openvswitch: reject oversized nested action attrs

A flaw was found in Open vSwitch in the Linux kernel. Improper handling of oversized nested action attributes can lead to a truncated length field, which could be exploited by a local attacker to alter kernel memory. This alteration might result in the disclosure of sensitive information or a loc...

kernel: net: openvswitch: reject oversized nested action attrs

A flaw was found in Open vSwitch in the Linux kernel. Improper handling of oversized nested action attributes can lead to a truncated length field, which could be exploited by a local attacker to alter kernel memory. This alteration might result in the disclosure of sensitive information or a loc...

kernel: net: openvswitch: reject oversized nested action attrs

A flaw was found in Open vSwitch in the Linux kernel. Improper handling of oversized nested action attributes can lead to a truncated length field, which could be exploited by a local attacker to alter kernel memory. This alteration might result in the disclosure of sensitive information or a loc...

CVE-2026-74701

A flaw was found in the Open vSwitch component of the Linux kernel. When a specially crafted packet with ETHPTEB protocol arrives on an ARPHRDNONE device, the keyextract function does not properly verify the Ethernet header length. This oversight allows a remote attacker to trigger a kernel bug,...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: rejecting negative ifindex values Recent changes in net-next commit 759ab1edb56c refactored the handling of pre-assigned ifindex values. This led to a latent issue in ovs. ovs does not validate ifindex values,...

CVE-2026-74664

A flaw was found in the Linux kernel's Open vSwitch component. When processing flow updates, the ovsflowcmdnew function preallocates a reply buffer based on the request's flow identifier. If a shorter User Flow ID UFID is provided, but the system matches an existing flow with a longer key...

SUSE CVE-2026-74701

In the Linux kernel, the following vulnerability has been resolved: net/openvswitch: check Ethernet header length in keyextract When a packet arrives on an ARPHRDNONE device e.g. TUN, ovsflowkeyextract trusts the user-provided skb-protocol field: if it is ETHPTEB, the packet is classified as...

CVE-2026-74701

In the Linux kernel, the following vulnerability has been resolved: net/openvswitch: check Ethernet header length in keyextract When a packet arrives on an ARPHRDNONE device e.g. TUN, ovsflowkeyextract trusts the user-provided skb-protocol field: if it is ETHPTEB, the packet is classified as...

CVE-2026-74664

In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: reallocate update replies for mismatched IDs ovsflowcmdnew preallocates the optional reply skb before it takes ovsmutex and before it knows which existing flow will be updated. That is normally fine because the...

CVE-2026-74701 net/openvswitch: check Ethernet header length in key_extract()

In the Linux kernel, the following vulnerability has been resolved: net/openvswitch: check Ethernet header length in keyextract When a packet arrives on an ARPHRDNONE device e.g. TUN, ovsflowkeyextract trusts the user-provided skb-protocol field: if it is ETHPTEB, the packet is classified as...