CVE-2026-63918: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: l2tp: use refcountincnotzero in l2tpsessiongetbyifname A reader in l2tpsessiongetbyifname can return a pointer to a session whose refcount has reached zero. The getter takes its reference with plain refcountinc, but every other...

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...

K15482: Linux kernel vulnerability CVE-2014-4943

Security Advisory Description The PPPoL2TP feature in net/l2tp/l2tpppp.c in the Linux kernel through 3.15.6 allows local users to gain privileges by leveraging data-structure differences between an l2tp socket and an inet socket. CVE-2014-4943 Impact None. No F5 products are affected by this...

CVE-2016-10200

Race condition in the L2TPv3 IP Encapsulation feature in the Linux kernel before 4.8.14 allows local users to gain privileges or cause a denial of service use-after-free by making multiple bind system calls without properly ascertaining whether a socket has the SOCKZAPPED status, related to...

Oracle Linux 7 : unbreakable enterprise kernel (ELSA-2014-3049)

The remote Oracle Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2014-3049 advisory. - l2tp: fix an unprivileged user to kernel privilege escalation Sasha Levin Orabug: 19229497 CVE-2014-4943 CVE-2014-4943 - ptrace,x86: force IRET path...

Oracle Linux 7 : kernel (ELSA-2014-0923)

The remote Oracle Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2014-0923 advisory. - net l2tpppp: fail when socket option level is not SOLPPPOL2TP Petr Matousek 1119465 1119466 CVE-2014-4943 Tenable has extracted the preceding...

Linux Kernel l2tp_ip_sendmsg()和pppol2tp_sendmsg()函数整数溢出漏洞

BUGTRAQ ID: 44762 CVE ID: CVE-2010-4160 Linux Kernel是开放源码操作系统Linux所使用的内核。 Linux Kernel中的PPPoL2TP实现（net/l2tp/l2tpppp.c，pppol2tpsendmsg）和IPoL2TP实现（net /l2tp/l2tpip.c，l2tpipsendmsg）都调用了sockwmalloc，而后者没有执行任何边界检查便对大小参数执行了算术运算。因此，如果发布了超大大小的sendto调用，这个分配大小就会回绕，导致分配过小的缓冲区。成功利用这个漏洞可能导致内核忙碌或内核堆溢出。 Linux...