Astra Linux – Vulnerability in Linux

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: Fixed a crash that occurs when re-plugging CSR fake controllers. It seems that fake CSR 5.0 clones can cause the suspend notifier to be registered twice, resulting in the following kernel panic: 71.986122 Call Trace...

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: btrtl – Prevent potential NULL dereferencing. The btrtlinitialize function checks whether rtlloadfile either had an error or loaded a zero-length file. However, if it loads a zero-length file, the error code is not set...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: In virtiobt, there is a issue where skbPutskb, len is called before proper validation of len. len comes directly from virtqueuegetbuf, without any validation against the buffer that is posted to the device. The RX skb ...

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

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: L2CAP: Validating the PDU length before reading the SDU length in l2capecreddatarcv The l2capecreddatarcv function reads the SDU length field from skb-data using getunalignedle16, without first verifying that skb...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: SCO: Race conditions in scosockconnect have been fixed. scosockconnect checks skstate and sktype without holding the socket lock. Two concurrent connect system calls on the same socket can both pass the check and enter...

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

Bluetooth BR/EDR devices with Secure Simple Pairing and Secure Connections support pairing in Bluetooth Core Specification 4.2 through 5.4. However, these devices are vulnerable to certain man-in-the-middle attacks, which force the use of a short key length. This vulnerability may lead to the...

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

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: L2CAP: Verify the payload length of L2CAPINFORSP before performing the read operation. The l2capinformationrsp function checks that cmdlen covers the fixed l2capinforsp header type + result, 4 bytes. However, it the...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel before version 5.16.3, the driver/bluetooth/hciqca.c file misinterprets the return value of devmgpiodgetindexoptional. It expects the return value to be NULL in the error case, but in reality, it is an error pointer...

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

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: L2CAP: Fixed type confusion in l2capecredreconfrsp The function l2capecredreconfrsp casts the incoming data into the struct l2capecredconnrsp an ECRED connection response, 8 bytes long, with the result at offset 6,...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: MGMT: Fixed a slab-use-after-free read in mgmtremoveadvmonitorsync. This fixed the following crash: BUG: KASAN: Slab-use-after-free in mgmtremoveadvmonitorSync+0x3a/0xd0, net/bluetooth/mgmt.c:5543 A 8-byte read at...

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

The “Use After Free” vulnerability in the Linux kernel allows for the execution of code in a local environment on Linux, x86, and ARM bluetooth modules. This vulnerability is associated with program files located at https://gitee.com/anolis/cloud-kernel/blob/devel-5.10/net/bluetooth/afbluetooth.C...

Astra Linux – Vulnerability in Chromium

Insufficient policy enforcement in Bluetooth in Google Chrome prior to 150.0.7871.47 allowed a remote attacker to perform privilege escalation via a crafted HTML page. Chromium security severity: Medium...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcievent: validate LE Set CIG Parameters response The Command Complete dispatch only validates the fixed part of the LE Set CIG Parameters response. After that part is extracted from the skb, the hcicclesetcigparams...

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

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcicore: cancels all operations upon calling hciunregisterdev. syzbot reports that calling hcireleasedev from hcierrorreset can cause a deadlock at destroyworkqueue. This occurs because hcierrorreset is called from...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: Fixed a memory leak in the error path of hciallocdev. Early failures in Bluetooth HCI UART configuration lead to a leak of percpu memory through the SRCU struct initialized early in hciallocdev. When device...

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

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: HIDP: Fixed a possible UAF issue. This fix addresses the following issue caused by not dropping the l2capconn reference when the user-remove callback is called: 97.809249 l2capconnfree: Freeing the conn...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: hcisync: Fixed a double-free in ‘hcidiscoveryfilterclear’. The function ‘hcidiscoveryfilterclear’ frees the ‘uuids’ array and then sets it to NULL. There is a small chance that the following races will occur:...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: MGMT: The meshsendcancel command should release the command when it is cancelled. meshsendcancel queues the pending command with a NULL destroy callback; it is only released if sendcancel is called. A cancelled command...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: eir: Fixed an issue with OOB reading in eirgetservicedata. eirgetservicedata processes advertising data for a Service Data field with a matching UUID. In case of a mismatch, it advances to the next field as follows:...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: btusb – revert the use of devmkzalloc in btusb This change reverts to the behavior described in commit 98921dbd00c4e “Bluetooth: Use devmkzalloc in btusb.c file”. In btusbprobe, we use devmkzalloc to allocate the btusb...