Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: L2CAP: Fixed “use-after-free” issue This involves using l2capchanholdunlesszero after calling l2capgetchanblah to prevent the following error: Bluetooth: l2capcore.c: static void l2capchandestroystruct krefkref...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcill: Fixed firmware leak on the error path. Suggestions for improvement: drivers/bluetooth/hcill.c: Line 587 of downloadfirmware: A warning appears: “fw” from requestfirmware is not released on line 544. In...

Astra Linux – Vulnerability in Wireshark

A buffer overflow in the Bluetooth SDP dissector in Wireshark versions 3.4.0 to 3.4.9 and 3.2.0 to 3.2.17 allows for denial of service through packet injection or malicious capture files...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: hcievent: fixed a potential UAF in hcileremoteconnparamreqevt. The hciconn lookup and field access must be protected by the hdev lock in hcileremoteconnparamreqevt. Otherwise, it is possible for the lock to be...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: bcsp: receives data only if registered Currently, the bcsprecv function can still be called even when the BCSP protocol has not been registered. This leads to a NULL pointer dereference, as shown in the following stack...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: SCO: Fixed a use-after-free in scorecvframe, due to the absence of sockhold. scorecvframe reads conn-sk under scoconnlock; however, it immediately releases the lock without holding a reference to the socket. A...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: hcisync: fixed a race condition in hcicmdsyncdequeueonce. The function hcicmdsyncdequeueonce performs a lookup and then cancels the entry under two separate lock sections. Meanwhile, hcicmdsyncwork can also delete t...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: qca: Fixed the issue where enabling Bluetooth fails again for QCA6390 after a warm reboot. The commit 272970be3dab “Bluetooth: hciqca: Fixed the driver shutdown issue when the serdev is closed” causes the following...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hciuart: fixed a NULL pointer dereferencing in hciuartwritework The hciuartsetproto function sets HCIUARTPROTOINIT before calling hciuartregisterdev. This function calls proto-open to initialize hu-priv. However, if a...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: fixed a use-after-free in deviceforeachchild Syzbot has reported the following KASAN issue: BUG: KASAN: slab-use-after-free in deviceforeachchild+0x18f/0x1a0 Size 8 data read at address ffff88801f605308 by task kbne...

Astra Linux – Vulnerability in Linux, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: L2CAP: Fixed a division by zero issue in l2capleflowctlinit. l2capleflowctlinit may cause both a division by zero and an integer overflow, as hdev-lemtu may not fall within the valid range. The MTU value was moved...

Astra Linux – Vulnerability in Linux 5.10, Linux

There are use-after-free vulnerabilities in the net/bluetooth/l2capcore.c files, specifically in the l2capconnect and l2capleconnectreq functions. These vulnerabilities may allow code execution and the leakage of kernel memory remotely via Bluetooth. A remote attacker can execute code that leaks...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: bnep: fixed wild-memory-access in protounregister The issues are as follows: KASAN: possible wild-memory-access within the range 0xdead...108-0xdead...10f CPU: 3 UID: 0 PID: 2805 Comm: rmmod Tainted: G W RIP:...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.10, Linux, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: L2CAP: Fixed an issue where user input was not validated. The length of user input was checked before data was copied...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15, Linux-6.1

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: l2cap: fixed a nullptrderef in l2capchantimeout. There is a race condition between l2capchantimeout and l2capchandel. When we use l2capchandel to delete the channel, the chan-conn will be set to null. However, the...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP – Fixed issue where multiple L2CAPECREDCONNREQUESTs were accepted. Currently, the code attempts to accept requests regardless of the command identifier. This can result in multiple requests being marked as pendin...

Astra Linux – Vulnerability in bluez

BlueZ Phone Book Access Profile Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of BlueZ. User interaction is required to exploit this vulnerability, as the target must connect...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: Added a check for mgmtallocskb in mgmtremotename. Added a check on the return value of mgmtallocskb in mgmtremotename to prevent null pointer dereferencing...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: l2cap: Check the encryption key size during incoming connections. This is required for passing the GAP/SEC/SEM/BI-04-C PTS test case: - Security Mode: 4, Level: 4, Responder: Invalid Encryption Key Size - Key Size:...

Astra Linux – Vulnerability in bluez

Bluetooth HID Hosts in BlueZ may allow an unauthenticated peripheral role HID device to initiate and establish an encrypted connection, and to accept HID keyboard reports. This could potentially allow the injection of HID messages when no user interaction has occurred in the Central role, thereby...