kernel: memory leak in l2cap_recv_acldata of the file net/bluetooth/l2cap_core.c

A memory leak flaw was found in the Linux kernel’s L2CAP bluetooth functionality. This issue occurs when a user generates malicious packets, triggering the l2caprecvacldata function. This flaw allows a local or bluetooth connection user to potentially crash the system...

kernel: use after free flaw in l2cap_conn_del in net/bluetooth/l2cap_core.c

A vulnerability was found in the Linux Kernel in the l2capconndel in net/bluetooth/l2capcore.c function in the Bluetooth component. This issue leads to a use-after-free problem...

PT-2025-18625 · Linux +3 · Linux Kernel +3

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: A memory leak has been identified in the Linux kernel's Bluetooth L2CAP implementation. The issue arises when the HCI core processes ACL data packets without freeing the skb,...

CLSA-2023-1683146027 kernel: Fix of 23 CVEs

media: rc: Fix use-after-free bugs caused by enetxirqsim CVE-2023-1118 - net: mpls: fix stale pointer if allocation fails during device rename CVE-2023-26545 - net/ulp: prevent ULP without clone op from entering the LISTEN status CVE-2023-0461 - Bluetooth: L2CAP: Fix u8 overflow CVE-2022-45934 -...

CLSA-2023-1682605601 Fix of 53 CVEs

CVE-2022-1198 - drivers: hamradio: 6pack: fix UAF bug caused by modtimer Bionic update: upstream stable patchset 2022-03-04 LP: 1963717 // CVE-2020-36516 - ipv4: avoid using shared IP generator for connected sockets CVE-2022-36879 - xfrm: xfrmpolicy: fix a possible double xfrmpolsput in...

CLSA-2023-1682604577 Fix of 53 CVEs

CVE-2022-1198 - drivers: hamradio: 6pack: fix UAF bug caused by modtimer Bionic update: upstream stable patchset 2022-03-04 LP: 1963717 // CVE-2020-36516 - ipv4: avoid using shared IP generator for connected sockets CVE-2022-36879 - xfrm: xfrmpolicy: fix a possible double xfrmpolsput in...

The vulnerability of the l2cap_chan_put() function (l2cap_core.s) in the Linux operating system allows a attacker to increase their privileges.

The vulnerability of the l2capchanput function l2capcore.c in the Linux operating system is related to the use of previously freed memory. Exploiting this vulnerability could allow an attacker to increase their privileges...

Buffer overflow

Contiki-NG is an open-source, cross-platform operating system for internet of things IoT devices. In versions 4.8 and prior, an out-of-bounds write can occur in the BLE L2CAP module of the Contiki-NG operating system. The network stack of Contiki-NG uses a global buffer packetbuf for processing o...

CVE-2023-28116

CVE-2023-28116 concerns Contiki-NG (IoT OS) prior to v4.9, where the BLE L2CAP module can cause an out-of-bounds write due to a mis sized packet buffer. The global packetbuf (size PACKETBUF_SIZE) may be exceeded when processing large packets with BLE L2CAP in the default configuration, leading to...

CVE-2023-28116 Buffer overflow in L2CAP due to misconfigured MTU

Contiki-NG is an open-source, cross-platform operating system for internet of things IoT devices. In versions 4.8 and prior, an out-of-bounds write can occur in the BLE L2CAP module of the Contiki-NG operating system. The network stack of Contiki-NG uses a global buffer packetbuf for processing o...

CVE-2023-28116 Buffer overflow in L2CAP due to misconfigured MTU

Contiki-NG is an open-source, cross-platform operating system for internet of things IoT devices. In versions 4.8 and prior, an out-of-bounds write can occur in the BLE L2CAP module of the Contiki-NG operating system. The network stack of Contiki-NG uses a global buffer packetbuf for processing o...

PT-2023-21574 · Unknown · Contiki-Ng

Name of the Vulnerable Software and Affected Versions: Contiki-NG versions 4.8 and prior Description: Contiki-NG is an open-source, cross-platform operating system for internet of things IoT devices. In the affected versions, an out-of-bounds write can occur in the BLE L2CAP module of the...

kernel: use-after-free caused by l2cap_reassemble_sdu() in net/bluetooth/l2cap_core.c

A use-after-free flaw was found in the Linux kernel’s L2CAP bluetooth functionality in how a user triggers a race condition by two malicious flows in the L2CAP bluetooth packets. This flaw allows a local or bluetooth connection user to crash the system or potentially escalate privileges...

kernel: use-after-free caused by l2cap_reassemble_sdu() in net/bluetooth/l2cap_core.c

A use-after-free flaw was found in the Linux kernel’s L2CAP bluetooth functionality in how a user triggers a race condition by two malicious flows in the L2CAP bluetooth packets. This flaw allows a local or bluetooth connection user to crash the system or potentially escalate privileges...

LSN-0092-1: Kernel Live Patch Security Notice

Kyle Zeng discovered that the sysctl implementation in the Linux kernel contained a stack-based buffer overflow. A local attacker could use this to cause a denial of service system crash or execute arbitrary code.CVE-2022-4378 Tamás Koczka discovered that the Bluetooth L2CAP handshake...

USN-5927-1: Linux kernel (Azure) vulnerabilities

It was discovered that the Upper Level Protocol ULP subsystem in the Linux kernel did not properly handle sockets entering the LISTEN state in certain protocols, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service system crash or possibly execut...

Ubuntu: Security Advisory (USN-5925-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2023 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...

USN-5926-1: Linux kernel vulnerabilities

Kirill Tkhai discovered that the XFS file system implementation in the Linux kernel did not calculate size correctly when pre-allocating space in some situations. A local attacker could use this to expose sensitive information. CVE-2021-4155 Lee Jones discovered that a use-after-free vulnerabilit...

USN-5925-1: Linux kernel vulnerabilities

It was discovered that the Upper Level Protocol ULP subsystem in the Linux kernel did not properly handle sockets entering the LISTEN state in certain protocols, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service system crash or possibly execut...

USN-5920-1: Linux kernel vulnerabilities

It was discovered that the Upper Level Protocol ULP subsystem in the Linux kernel did not properly handle sockets entering the LISTEN state in certain protocols, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service system crash or possibly execut...