Astra Linux - уязвимость в linux-5.10

In the Linux kernel, the following vulnerabilities have been resolved: l2tp: All race conditions in l2tptunnelregister have been fixed. The code within l2tptunnelregister is problematic in several ways: 1. It modifies the tunnel socket after it is published. 2. It calls setupudptunnelsock on an...

CVE-2026-43080

In the Linux kernel, the following vulnerability has been resolved: 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 in the upstream code. My series added a debug WARN with an overflow...

CVE-2026-43080

In the Linux kernel, the following vulnerability has been resolved: 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 in the upstream code. My series added a debug WARN with an overflow...

PT-2026-37390

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An overflow occurs in the 16-bit UDP length field when processing oversized PPPoL2TP packets with UDP encapsulation. The l2tp xmit core function fails to check for overflows during the...

CVE-2026-20010 Cisco Nexus 3000 and 9000 Series Switches Link Layer Discovery Protocol Denial of Service Vulnerability

A vulnerability in the Link Layer Discovery Protocol LLDP feature of Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to cause the LLDP process to restart, which could cause an affected device to reload unexpectedly. This vulnerability is due to improper handling of specific...

CVE-2026-23120 l2tp: avoid one data-race in l2tp_tunnel_del_work()

In the Linux kernel, the following vulnerability has been resolved: l2tp: avoid one data-race in l2tptunneldelwork We should read sk-sksocket only when dealing with kernel sockets. syzbot reported the following data-race: BUG: KCSAN: data-race in l2tptunneldelwork / skcommonrelease write to...

PT-2026-8113

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The Linux kernel contains a data-race condition within the l2tp tunnel del work function. This issue arises when handling kernel sockets, specifically during the deletion of an L2TP...

UBUNTU-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...

EDIMAX RE11S 安全漏洞

EDIMAX RE11S is a router from EDIMAX. A security vulnerability exists in EDIMAX RE11S v1.11, which stems from the discovery that the L2TPUserName parameter via /goform/setWAN contains a command injection vulnerability...

AZL-52947 CVE-2024-49940 affecting package kernel 6.6.126.1-1

In the Linux kernel, the following vulnerability has been resolved: l2tp: prevent possible tunnel refcount underflow When a session is created, it sets a backpointer to its tunnel. When the session refcount drops to 0, l2tpsessionfree drops the tunnel refcount if session-tunnel is non-NULL...

CLSA-2024-1727817758 Fix of 74 CVEs

CVE-url: https://ubuntu.com/security/CVE-2024-26752 - l2tp: pass correct message length to ip6appenddata CVE-url: https://ubuntu.com/security/CVE-2021-47188 - scsi: ufs: core: Improve SCSI abort handling CVE-url: https://ubuntu.com/security/CVE-2024-26677 - rxrpc: Fix delayed ACKs to not set the...

CLSA-2024-1727817133 Fix of 74 CVEs

CVE-url: https://ubuntu.com/security/CVE-2024-26752 - l2tp: pass correct message length to ip6appenddata CVE-url: https://ubuntu.com/security/CVE-2021-47188 - scsi: ufs: core: Improve SCSI abort handling CVE-url: https://ubuntu.com/security/CVE-2024-26677 - rxrpc: Fix delayed ACKs to not set the...

PT-2024-33782

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: The issue is related to a possible tunnel refcount underflow in the Linux kernel's l2tp module. When a session is created, it sets a backpointer to its tunnel, and when the session...

SUSE CVE-2023-52527

In the Linux kernel, the following vulnerability has been resolved: ipv4, ipv6: Fix handling of transhdrlen in ip,6appenddata Including the transhdrlen in length is a problem when the packet is partially filled e.g. something like sendMSGMORE happened previously when appending to an IPv4 or IPv6...

The vulnerability of the pppol2tp_create() function in the net/l2tp/l2tp_ppp.c module of the Linux kernel allows a attacker to compromise the confidentiality, integrity, and accessibility of the protected information, or to enhance their privileges.

The vulnerability of the pppol2tpcreate function in the net/l2tp/l2tpppp.c module of the Linux kernel is related to concurrent resource access race condition. Exploiting this vulnerability could allow an attacker to compromise the confidentiality, integrity, and accessibility of protected...

The vulnerability of the Layer 2 Tunneling Protocol (L2TP) implementation in Windows operating systems allows a hacker to execute arbitrary code.

The vulnerability of the Layer 2 Tunneling Protocol L2TP implementation in Windows operating systems is related to the use of memory after it is freed. Exploiting this vulnerability allows a remote attacker to execute arbitrary code...

PT-2023-9463 · Linux +4 · Linux Kernel +4

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: The issue is related to the handling of transhdrlen in the ip,6 append data function. Including transhdrlen in the length is a problem when the packet is partially filled, as it can...

USN-6025-1 linux, linux-aws, linux-aws-5.15, linux-azure, linux-azure-5.15, linux-azure-fde, linux-gcp, linux-gcp-5.15, linux-gke, linux-gke-5.15, linux-gkeop, linux-ibm, linux-kvm, linux-lowlatency, linux-lowlatency-hwe-5.15, linux-oracle, linux-oracle-5.15, linux-raspi vulnerabilities

It was discovered that the Traffic-Control Index TCINDEX implementation in the Linux kernel contained a use-after-free vulnerability. A local attacker could use this to cause a denial of service system crash or possibly execute arbitrary code. CVE-2023-1281 It was discovered that the OverlayFS...

kernel: net: pppol2tp: level handling in pppol2tp_[s,g]etsockopt()

A flaw was found in the way the pppol2tpsetsockopt and pppol2tpgetsockopt functions in the Linux kernel's PPP over L2TP implementation handled requests with a non-SOLPPPOL2TP socket option level. A local, unprivileged user could use this flaw to escalate their privileges on the system...

PT-2010-4059 · Linux · Linux Kernel

Name of the Vulnerable Software and Affected Versions: Linux kernel versions prior to 2.6.34 Description: The issue is related to the L2TP implementation in the Linux kernel, specifically the pppol2tp xmit function in drivers/net/pppol2tp.c. It does not properly validate certain values associated...