Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcicore: lookup hciconn on the RX path at the protocol level The hdev lock/lookup/unlock/use pattern in the packet RX path does not ensure that hciconn is not concurrently modified/deleted. This locking mechanism seems...

Astra Linux – Vulnerability in Linux

Linux Kernel Bluetooth CMTP Module Double Free Privilege Escalation Vulnerability. This vulnerability allows local attackers to escalate privileges on affected installations of the Linux Kernel. An attacker must first obtain the ability to execute high-privileged code on the target system in orde...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: Fixed an issue involving a use-after-free in hcisendacl. This fix addresses the issue caused by receiving HCIEVDISCONNPHYLINKCOMPLETE, which does not call hciconndel without first checking whether conn-type is indee...

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 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. This issue allows for denial of service through packet injection or with properly crafted capture files...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: btusb: Fixed a potential NULL dereferencing on a kmalloc failure. Avoid potential NULL pointer dereferences by checking the return value of kmalloc and properly handling allocation failures...

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 memory leak in hcireqsyncComplete In the function hcireqsyncComplete, always free the previous sync request state before assigning a reference to a new one...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: Fixed a buffer overflow in mgmtmeshadd Smatch Warning: net/bluetooth/mgmtutil.c:375 mgmtmeshadd error: memcpy “meshtx-param” is too small 48 instead of 50 Analysis: “meshtx-param” is an array of size 48. This is the...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: L2CAP: Fixed a use-after-free in l2capdisconnectreq,rsp. Similar to the issue reported in commit d0be8347c623 “Bluetooth: L2CAP: Fix use-after-free caused by l2capchanput”, use l2capchanholdunlesszero to prevent...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: L2CAP: A stack-out-of-bounds read occurred in l2capecredconnreq. Syzbot reported a KASAN stack-out-of-bounds read in l2capbuildcmd, which is triggered by a malformed Enhanced Credit Based Connection Request. The...

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: Fixed use-after-free issue Fixed a potential use-after-free in l2caplecommandrej...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: L2CAP: Fixed a deadlock in l2capconndel. The l2capconndel function calls canceldelayedworksync for both infotimer and idaddrtimer while holding conn-lock. However, the functions l2capinfotimeout and...

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

A NULL pointer dereference vulnerability exists in the Linux kernel on Linux, x86, and ARM platforms including networking and Bluetooth modules. This vulnerability is related to the /net/bluetooth/rfcomm/core.C file. This issue affects the Linux kernel version v2.6.12-rc2...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: hciconn: Fixed memory leaks When hcicmdsyncqueue fails in hcileterminatebig or hcilebigterminate, the memory pointed to by the variable d is not freed, which can lead to memory leaks. A release mechanism should be...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: HCI: Fixed global-out-of-bounds issue To loop a variable-length array, hciinitstagesyncstage considers that stagei is valid as long as stagei-1.func is valid. Thus, the last element of stage.func should be...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: Purge error queues in socket destructors When TX timestamping is enabled via SOTIMESTAMPING, SKBs may be queued into skerrorqueue and will remain there until they are consumed. If userspace never gets to read the...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: Avoid using hcidevtestandsetflag in mgmtinithdev. syzbot is once again reporting attempts to cancel uninitialized operations at mgmtindexremoved. The sequence of operations—setting the HCIMGMT flag from mgmtinithdev...

Astra Linux – Vulnerability in Linux 5.10, Linux

A vulnerability classified as critical was discovered in the Linux kernel. The vulnerability affects the function l2capreassemblesdu in the file net/bluetooth/l2capcore.c of the Bluetooth component. This vulnerability stems from improper memory management, leading to an attempt to reuse freed...

Astra Linux – Vulnerability in Linux 5.10, Linux

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 5.10, Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: btsdio: fixed a use-after-free bug in btsdioRemove due to a race condition. In btsdioprobe, the data-work is bound to btsdiowork. It will be started in btsdiosendframe. If btsdio.Remove runs with an unfinished work,...