CVE-2026-43080

Summary of CVE-2026-43080 (Linux kernel) : The issue resides in the L2TP/PPP over L2TP code path where an oversized PPPoL2TP packet sent with UDP encapsulation can trigger an overflow of the 16‑bit UDP length field, causing the length to be trimmed and potentially sending malformed packets. The p...

Linux kernel 安全漏洞

The Linux kernel is the kernel used by the Linux operating system developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from unhandled UDP LibiLibinitSock failed operations, leading to a null pointer derefrence...

Linux Distros Unpatched Vulnerability : CVE-2026-43080

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - l2tp: Drop large packets with UDP encap syzbot reported a WARN on my patch series 1. The actual issue is an overflow of 16-bit UDP length field, and it exists i...

RHEL 9 : corosync (RHSA-2026:14212)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:14212 advisory. The corosync packages provide the Corosync Cluster Engine and C APIs for Red Hat Enterprise Linux cluster software. Security Fixes: corosyn...

Linux kernel 安全漏洞

The Linux kernel is the kernel used by the Linux operating system developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from l2tp’s failure to check for UDP length field overflows during UDP encapsulation. This could lead to the...

RockyLinux 10 : corosync (RLSA-2026:13644)

The remote RockyLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:13644 advisory. corosync: Corosync: Denial of Service and information disclosure via crafted UDP packet CVE-2026-35091 corosync: Corosync: Denial of Service via intege...

corosync: Corosync: Denial of Service via integer overflow in join message validation

A flaw was found in Corosync. An integer overflow vulnerability in Corosync's join message sanity validation allows a remote, unauthenticated attacker to send crafted User Datagram Protocol UDP packets. This can cause the service to crash, leading to a denial of service. This vulnerability...

corosync: Corosync: Denial of Service via integer overflow in join message validation

A flaw was found in Corosync. An integer overflow vulnerability in Corosync's join message sanity validation allows a remote, unauthenticated attacker to send crafted User Datagram Protocol UDP packets. This can cause the service to crash, leading to a denial of service. This vulnerability...

corosync: Corosync: Denial of Service via integer overflow in join message validation

A flaw was found in Corosync. An integer overflow vulnerability in Corosync's join message sanity validation allows a remote, unauthenticated attacker to send crafted User Datagram Protocol UDP packets. This can cause the service to crash, leading to a denial of service. This vulnerability...

ALSA-2026:13644 Moderate: corosync security update

The corosync packages provide the Corosync Cluster Engine and C APIs for AlmaLinux cluster software. Security Fixes: corosync: Corosync: Denial of Service and information disclosure via crafted UDP packet CVE-2026-35091 corosync: Corosync: Denial of Service via integer overflow in join message...

[SECURITY] Fedora 42 Update: openvpn-2.6.20-1.fc42

OpenVPN is a robust and highly flexible tunneling application that uses all of the encryption, authentication, and certification features of the OpenSSL library to securely tunnel IP networks over a single UDP or TCP port. It can use the Marcus Franz Xaver Johannes Oberhumers LZO library for...

[SECURITY] Fedora 44 Update: coturn-4.10.0-1.fc44

The Coturn TURN Server is a VoIP media traffic NAT traversal server and gatew ay. It can be used as a general-purpose network traffic TURN server/gateway, too. This implementation also includes some extra features. Supported RFCs: TURN specs: - RFC 5766 - base TURN specs - RFC 6062 - TCP relaying...

PT-2026-34985

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An integer overflow exists in the rxgk verify response function. This occurs because token len is rounded up before being checked, which allows the length check to be bypassed...

CVE-2026-31503

A flaw was found in the Linux kernel's User Datagram Protocol UDP implementation. When a significant number of UDP sockets are bound to specific local addresses on the same port, the kernel's conflict detection mechanism can fail. This allows a local attacker to bind to a wildcard address on a po...

UBUNTU-CVE-2026-33602

A rogue backend can send a crafted UDP response with a query ID off by one related to the maximum configured value, triggering an out-of-bounds write leading to a denial of service...

CVE-2026-31503

CVE-2026-31503 concerns a Linux kernel UDP hash2-based wildcard-bind conflict check that can miss an in-use port when many sockets bind to the same port. The issue arises because UDP uses two hashes (hash and hash2) for collision detection and switches to hash2 only when hslot->count > 10, ...

CVE-2026-33602

A rogue backend can send a crafted UDP response with a query ID off by one related to the maximum configured value, triggering an out-of-bounds write leading to a denial of service...

CVE-2026-33602 Off-by-one access when processing crafted UDP responses

A rogue backend can send a crafted UDP response with a query ID off by one related to the maximum configured value, triggering an out-of-bounds write leading to a denial of service...

CVE-2026-33602

A rogue backend can send a crafted UDP response with a query ID off by one related to the maximum configured value, triggering an out-of-bounds write leading to a denial of service...

CVE-2026-5358

No description is available for this CVE. Mitigation To mitigate this issue, ensure that Network Information Service NIS is not in use on affected systems. NIS is an obsolete service and its use is deprecated in modern Red Hat Enterprise Linux environments. If NIS is not required, disable any...