kernel: use-after-free in l2cap_connect and l2cap_le_connect_req in net/bluetooth/l2cap_core.c

A use-after-free flaw was found in the Linux kernel's implementation of logical link control and adaptation protocol L2CAP, part of the Bluetooth stack in the l2capconnect and l2capleconnectreq functions. An attacker with physical access within the range of standard Bluetooth transmission could...

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...

PT-2023-4425 · Linux +9 · Linux Kernel +9

Name of the Vulnerable Software and Affected Versions: Linux kernel versions prior to 6.4.10 Description: The issue is related to the l2cap sock release function in the Linux kernel, specifically in the net/bluetooth/l2cap sock.c file. It involves a use-after-free error because the children of an...

CLSA-2023-1686651204 kernel: Fix of 25 CVEs

cgroup: Use open-time cgroup namespace for process migration perm checks CVE-2021-4197 - cgroup: Use open-time credentials for process migraton perm checks CVE-2021-4197 - vt: drop old FONT ioctls CVE-2021-33656 - fbmem: Check virtual screen sizes in fbsetvar CVE-2021-33655 - fbcon: Prevent that...

EulerOS 2.0 SP5 : kernel (EulerOS-SA-2023-2152)

According to the versions of the kernel packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - A flaw was found in the Linux kernel's implementation of RDMA over infiniband. An attacker with a privileged local account can leak kernel stack...

kernel: use-after-free in l2cap_connect and l2cap_le_connect_req in net/bluetooth/l2cap_core.c

A use-after-free flaw was found in the Linux kernel's implementation of logical link control and adaptation protocol L2CAP, part of the Bluetooth stack in the l2capconnect and l2capleconnectreq functions. An attacker with physical access within the range of standard Bluetooth transmission could...

kernel: use-after-free in l2cap_connect and l2cap_le_connect_req in net/bluetooth/l2cap_core.c

A use-after-free flaw was found in the Linux kernel's implementation of logical link control and adaptation protocol L2CAP, part of the Bluetooth stack in the l2capconnect and l2capleconnectreq functions. An attacker with physical access within the range of standard Bluetooth transmission could...

kernel: use-after-free in l2cap_connect and l2cap_le_connect_req in net/bluetooth/l2cap_core.c

A use-after-free flaw was found in the Linux kernel's implementation of logical link control and adaptation protocol L2CAP, part of the Bluetooth stack in the l2capconnect and l2capleconnectreq functions. An attacker with physical access within the range of standard Bluetooth transmission could...

EulerOS Virtualization 2.9.0 : kernel (EulerOS-SA-2023-2020)

According to the versions of the kernel packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : - A flaw was found in the Linux kernel's implementation of RDMA over infiniband. An attacker with a privileged local account can le...

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: Bluetooth: L2CAP: Fix memory leak in vhci_write

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix memory leak in vhciwrite Syzkaller reports a memory leak as follows: ==================================== BUG: memory leak unreferenced object 0xffff88810d81ac00 size 240: ... hex dump first 32 bytes: 00 00 ...

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...

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...