Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-002205)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-002205 advisory. The l2tpiprecvmsg function in net/l2tp/l2tpip.c in the Linux kernel before 3.12.4 updates a certain length value before ensuring that an associated data structure ha...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-001578)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-001578 advisory. In the l2tp subsystem, there is a possible use after free due to a race condition. This could lead to local escalation of privilege with System execution privileges...

[SECURITY] Fedora 43 Update: NetworkManager-l2tp-1.52.0-1.fc43

This package contains software for integrating L2TP and L2TP over IPsec VPN support with the NetworkManager...

Fedora: Security Advisory (FEDORA-2026-0d1cf2e45b)

The remote host is missing an update for the SPDX-FileCopyrightText: 2026 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...

Fedora: Security Advisory (FEDORA-2026-4ba84b1f69)

The remote host is missing an update for the SPDX-FileCopyrightText: 2026 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...

Fedora 43 : NetworkManager-l2tp (2026-4ba84b1f69)

The remote Fedora 43 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-4ba84b1f69 advisory. Updated to 1.52.0 release CVE-2025-9615 Verify file permissions for private connections to prevent unprivileged user from using other user's certs...

Fedora 42 : NetworkManager-l2tp (2026-0d1cf2e45b)

The remote Fedora 42 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-0d1cf2e45b advisory. Updated to 1.52.0 release CVE-2025-9615 Verify file permissions for private connections to prevent unprivileged user from using other user's certs. Ensure...

CVE-2020-7465

The L2TP implementation of MPD before 5.9 allows a remote attacker who can send specifically crafted L2TP control packet with AVP Q.931 Cause Code to execute arbitrary code or cause a denial of service memory corruption...

PT-2026-6142

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The Linux kernel contains a memory leak in the l2tp udp encap recv function. The issue was identified by syzbot, which reported a memory leak of structures like l2tp session, l2tp tunnel...

SUSE CVE-2023-53809

In the Linux kernel, the following vulnerability has been resolved: l2tp: Avoid possible recursive deadlock in l2tptunnelregister When a file descriptor of pppol2tp socket is passed as file descriptor of UDP socket, a recursive deadlock occurs in l2tptunnelregister. This situation is reproduced b...

Linux Distros Unpatched Vulnerability : CVE-2023-53809

"The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - l2tp: Avoid possible recursive deadlock in l2tptunnelregister When a file descriptor of pppol2tp socket is passed as file descriptor of UDP socket, a recursive...

EUVD-2023-60097

In the Linux kernel, the following vulnerability has been resolved: l2tp: Avoid possible recursive deadlock in l2tptunnelregister When a file descriptor of pppol2tp socket is passed as file descriptor of UDP socket, a recursive deadlock occurs in l2tptunnelregister. This situation is reproduced b...

CVE-2023-53809

In the Linux kernel, the following vulnerability has been resolved: l2tp: Avoid possible recursive deadlock in l2tptunnelregister When a file descriptor of pppol2tp socket is passed as file descriptor of UDP socket, a recursive deadlock occurs in l2tptunnelregister. This situation is reproduced b...

DEBIAN-CVE-2023-53809

In the Linux kernel, the following vulnerability has been resolved: l2tp: Avoid possible recursive deadlock in l2tptunnelregister When a file descriptor of pppol2tp socket is passed as file descriptor of UDP socket, a recursive deadlock occurs in l2tptunnelregister. This situation is reproduced b...

UBUNTU-CVE-2023-53809

In the Linux kernel, the following vulnerability has been resolved: l2tp: Avoid possible recursive deadlock in l2tptunnelregister When a file descriptor of pppol2tp socket is passed as file descriptor of UDP socket, a recursive deadlock occurs in l2tptunnelregister. This situation is reproduced b...

CVE-2023-53809 l2tp: Avoid possible recursive deadlock in l2tp_tunnel_register()

In the Linux kernel, the following vulnerability has been resolved: l2tp: Avoid possible recursive deadlock in l2tptunnelregister When a file descriptor of pppol2tp socket is passed as file descriptor of UDP socket, a recursive deadlock occurs in l2tptunnelregister. This situation is reproduced b...

CVE-2023-53809

The CVE-2023-53809 issue affects the Linux kernel where passing a pppol2tp socket as a UDP socket to l2tp_tunnel_register() could trigger a recursive locking deadlock. Root cause: a lock order condition allowed deadlock when a socket path led to nested locking of sk_lock-AF_PPPOX. The advisory no...

CVE-2023-53809

In the Linux kernel, the following vulnerability has been resolved: l2tp: Avoid possible recursive deadlock in l2tptunnelregister When a file descriptor of pppol2tp socket is passed as file descriptor of UDP socket, a recursive deadlock occurs in l2tptunnelregister. This situation is reproduced b...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel, which stems from the fact that l2tptunnelregister can cause a recursive deadlock when passing pppol2tp file descriptors...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-988949)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-988949 advisory. In the Linux kernel, the following vulnerability has been resolved: ipv6: Fix signed integer overflow in l2tpip6sendmsg When len = INTMAX - transhdrlen, ulen = len +...