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

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: RFCOMM: No fix to ensure that user input is validated before setting the setsockopt function. The syzbot reported that the rfcommsocksetsockoptold function copies data without checking the length of the user input...

Astra Linux – Vulnerability in Chromium

Insufficient policy enforcement in Web Bluetooth in Google Chrome prior to 149.0.7827.53 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. Chromium security severity: Low...

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 5.10, Linux, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: L2CAP: Fix for u8 overflow By continuously sending L2CAPCONFREQ packets, chan-numconfrsp increases multiple times, eventually exceeding the maximum number i.e., 255. This patch prevents this issue by adding a bounda...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: Use memset to avoid memory leaks. Use memset to initialize structs to prevent memory leaks. In l2capecredconnect...

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

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: Fixed a potential use-after-free when using clear keys. Similar to the commit c5d2b6fa26b5 "Bluetooth: Fixed a use-after-free in hciremoveltk/hciremoveirk". We cannot access the variable k after the kfreercu call...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Cancel pendingrxwork before taking conn-lock The l2capconndel function takes conn-lock and then calls cancelworksync for pendingrxwork. processPendingRx uses the same mutex, so deadlock can occur when tearing do...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: Fixed a UAF in l2capsockcleanuplisten versus l2capconndel. In btacceptdequeue, a not-yet-accepted child process is unlinked from the parent accept queue. releasesock is called before returning, so the returned sk ha...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: fixed a UAF in isorecvframe isorecvframe reads conn-sk under isoconnlock, but releases the lock before using sk, without holding a reference. A concurrent isosockkill call can free sk during that period, causing a...

Astra Linux – Vulnerability in Linux 6.1

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

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 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: Low...

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 – 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 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

A race condition was detected in the Linux kernel’s net/bluetooth device driver, specifically in the conninfomin,maxageset function. This can lead to an integrity overflow issue, potentially causing abnormal Bluetooth connections or denial of service...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: hcievent: fixed a potential UAF in SSP passkey handlers The hciconn lookup and field access must be protected by the hdev lock in hciuserpasskeynotifyevt and hcikeypressnotifyevt. Otherwise, the connection may be...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: virtiobt: No longer validates the rxpkttype header length. The virtbtrxhandle function reads the pkttype byte from the RXskb and passes the remaining data to hcirecvframe, regardless of the type of event/ACL/SCO/ISO...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: MGMT: validate the length of the advertising payload sent via meshsend The meshsend function currently limits the MGMTOPMESHSEND operation based on the total command length. However, it does not verify whether the...

Astra Linux – Vulnerability in Linux, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: afbluetooth: Fixed deadlock issue Attempting to use socklock on .recvmsg may cause a deadlock as shown below. Therefore, instead of using socksock, use skreceivequeue.lock on btsockioctl to avoid UAF: INFO: Task...