CVE-2023-53020 l2tp: close all race conditions in l2tp_tunnel_register()

In the Linux kernel, the following vulnerability has been resolved: l2tp: close all race conditions in l2tptunnelregister The code in l2tptunnelregister is racy in several ways: 1. It modifies the tunnel socket after publishing it. 2. It calls setupudptunnelsock on an existing socket without...

CVE-2023-53020

CVE-2023-53020 affects the Linux kernel: l2tp_tunnel_register() contains race conditions that modify the tunnel socket after publishing, call setup_udp_tunnel_sock() on an existing socket without locking, and change sock lock class on the fly. A patch fixes these by initializing the socket before...

CVE-2023-53020

In the Linux kernel, the following vulnerability has been resolved: l2tp: close all race conditions in l2tptunnelregister The code in l2tptunnelregister is racy in several ways: 1. It modifies the tunnel socket after publishing it. 2. It calls setupudptunnelsock on an existing socket without...

CVE-2023-53020 l2tp: close all race conditions in l2tp_tunnel_register()

In the Linux kernel, the following vulnerability has been resolved: l2tp: close all race conditions in l2tptunnelregister The code in l2tptunnelregister is racy in several ways: 1. It modifies the tunnel socket after publishing it. 2. It calls setupudptunnelsock on an existing socket without...

CVE-2023-53020: Concurrent Execution using Shared Resource with Improper Synchronization

In the Linux kernel, the following vulnerability has been resolved: l2tp: close all race conditions in l2tptunnelregister The code in l2tptunnelregister is racy in several ways: 1. It modifies the tunnel socket after publishing it. 2. It calls setupudptunnelsock on an existing socket without...

Linux Distros Unpatched Vulnerability : CVE-2020-27067

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 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...

SUSE CVE-2022-49727

In the Linux kernel, the following vulnerability has been resolved: ipv6: Fix signed integer overflow in l2tpip6sendmsg When len = INTMAX - transhdrlen, ulen = len + transhdrlen will be overflow. To fix, we can follow what udpv6 does and subtract the transhdrlen from the max...

UBUNTU-CVE-2022-49727

In the Linux kernel, the following vulnerability has been resolved: ipv6: Fix signed integer overflow in l2tpip6sendmsg When len = INTMAX - transhdrlen, ulen = len + transhdrlen will be overflow. To fix, we can follow what udpv6 does and subtract the transhdrlen from the max...

CVE-2022-49727

In the Linux kernel, the following vulnerability has been resolved: ipv6: Fix signed integer overflow in l2tpip6sendmsg When len = INTMAX - transhdrlen, ulen = len + transhdrlen will be overflow. To fix, we can follow what udpv6 does and subtract the transhdrlen from the max...

CVE-2020-15173

In ACCEL-PPP an implementation of PPTP/PPPoE/L2TP/SSTP, there is a buffer overflow when receiving an l2tp control packet ith an AVP which type is a string and no hidden flags, length set to less than 6. If your application is used in open networks or there are untrusted nodes in the network it is...

CVE-2025-22906

RE11S v1.11 was discovered to contain a command injection vulnerability via the L2TPUserName parameter at /goform/setWAN...

CVE-2024-53211

In the Linux kernel, the following vulnerability has been resolved: net/l2tp: fix warning in l2tpexitnet found by syzbot In l2tp's net exit handler, we check that an IDR is empty before destroying it: WARNONONCE!idrisempty&pn-;l2tptunnelidr; idrdestroy&pn-;l2tptunnelidr; By forcing memory...

SUSE CVE-2024-53211

In the Linux kernel, the following vulnerability has been resolved: net/l2tp: fix warning in l2tpexitnet found by syzbot In l2tp's net exit handler, we check that an IDR is empty before destroying it: WARNONONCE!idrisempty&pn-l2tptunnelidr; idrdestroy&pn-l2tptunnelidr; By forcing memory allocatio...

CVE-2024-53211

In the Linux kernel, the following vulnerability has been resolved: net/l2tp: fix warning in l2tpexitnet found by syzbot In l2tp's net exit handler, we check that an IDR is empty before destroying it: WARNONONCE!idrisempty&pn-l2tptunnelidr; idrdestroy&pn-l2tptunnelidr; By forcing memory allocatio...

UBUNTU-CVE-2024-53211

In the Linux kernel, the following vulnerability has been resolved: net/l2tp: fix warning in l2tpexitnet found by syzbot In l2tp's net exit handler, we check that an IDR is empty before destroying it: WARNONONCE!idrisempty&pn-l2tptunnelidr; idrdestroy&pn-l2tptunnelidr; By forcing memory allocatio...

CVE-2024-53211

CVE-2024-53211 : In the Linux kernel, the l2tp_exit_net path could observe a non-empty IDR due to a radix-tree internal-node condition when idr_is_empty() was used. The bug allowed idr_is_empty() to return false despite no items, triggering a warning and potentially unsafe destruction sequence. T...

CVE-2024-53211 net/l2tp: fix warning in l2tp_exit_net found by syzbot

In the Linux kernel, the following vulnerability has been resolved: net/l2tp: fix warning in l2tpexitnet found by syzbot In l2tp's net exit handler, we check that an IDR is empty before destroying it: WARNONONCE!idrisempty&pn-l2tptunnelidr; idrdestroy&pn-l2tptunnelidr; By forcing memory allocatio...

CVE-2024-53211 net/l2tp: fix warning in l2tp_exit_net found by syzbot

In the Linux kernel, the following vulnerability has been resolved: net/l2tp: fix warning in l2tpexitnet found by syzbot In l2tp's net exit handler, we check that an IDR is empty before destroying it: WARNONONCE!idrisempty&pn-l2tptunnelidr; idrdestroy&pn-l2tptunnelidr; By forcing memory allocatio...

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 that stems from a warning issue in the l2tpexitnet function in the net/l2tp subsystem...

CVE-2024-53211: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: net/l2tp: fix warning in l2tpexitnet found by syzbot In l2tp's net exit handler, we check that an IDR is empty before destroying it: WARNONONCE!idrisempty&pn-l2tptunnelidr; idrdestroy&pn-l2tptunnelidr; By forcing memory allocatio...