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: L2CAP: Do not leave a dangling sk pointer after an error in l2capsockcreate. The btsockalloc function allocates the sk object and attaches it to the provided sock object. If an error occurs in l2capsockalloc, the sk...

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

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: 6lowpan: resetting the link-local header in the IPv6 receive path The Bluetooth 6lowpan.c netdev module has the headerops function; therefore, it must set the link-local header for the RX skb packet. Otherwise, thin...

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

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fixed a potential issue after the “user-after-free” operation. This fix addresses all cases where allocating a buffer using allocskb might release the “chan lock”, and reacquiring it later could result in the...

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

A issue was discovered in the Linux kernel through version 6.0.10. In the l2capconfigreq function within net/bluetooth/l2capcore.c, there is an integer wraparound occurring when processing L2CAPCONFREQ packets...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: qca: fixed an issue where information was leaked when fetching the fw build id. Added missing sanity checks and moved the 255-byte build-id buffer off the stack to prevent the leakage of stack data through debugfs, ...

Astra Linux – Vulnerability in Linux

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: Fix crash when replugging CSR fake controllers It seems fake CSR 5.0 clones can cause the suspend notifier to be registered twice causing the following kernel panic: 71.986122 Call Trace: 71.986124 71.986125...

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: Fixed null-ptr-deref in l2capsockresumecb. syzbot reported null-ptr-deref in l2capsockresumecb. 0 l2capsockresumecb has a similar issue that was fixed in commit 1bff51ea59a9 “Bluetooth: fixed use-after-free errors i...

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: In btusb, there is an issue where the cleanup process in btusbdisconnect is performed out of order, leading to a Use-After-Free UAF condition. There is also a KASAN issue in btusbdisconnect: A read operation involvi...

Astra Linux – Vulnerability in Wireshark

A large loop exists in the Bluetooth DHT dissector in Wireshark versions 3.4.0 to 3.4.9, and 3.2.0 to 3.2.17, which allows for denial of service through packet injection or with crafted capture files...

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: L2CAP: A missing check for the encryption key size was fixed in the L2CAPLEConnREQ. This addition ensures that the key size is checked upon receiving the L2CAPLEConnREQ, which is required by L2CAP/LE/CFC/BV-15-C. This...

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 Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: Wifi: brcmfmac – Fix for use-after-free when rescheduling the brcmfbtcoexinfo worker. The brcmfbtcoexdetach function only shuts down the btcoex timer if the timeron flag is set to false. However, the brcmfbtcoextimerfunc function...

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

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: btusb: Added a NULL check for “date-evtskb”. Fixed a crash due to NULL pointers. 6104.969662 BUG: NULL pointer dereferencing in the kernel; address: 00000000000000c8 6104.969667 PF: Supervisor read access in kernel...

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 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...

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: 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 – 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:...