Log in Start free

Vulnerability · Published Feb 26, 2025 · Assigned by Linux

CVE-2022-49138Bluetooth: hci_event: Ignore multiple conn complete events

High 8.8

In plain English

A high-severity security flaw in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 34% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.4%top 65.6% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_event: Ignore multiple conn complete events When one of the three connection complete events is received multiple times for the same handle, the device is registered multiple times which leads to memory corruptions. Therefore, consequent events for a single connection are ignored. The conn->state can hold different values, therefore HCI_CONN_HANDLE_UNSET is introduced to identify new connections. To make sure the events do not contain this or another invalid handle HCI_CONN_HANDLE_MAX and checks are introduced. Buglink: https://bugzilla.kernel.org/show_bug.cgi?id=215497

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux5.17.3-1DEBIAN-CVE-2022-49138
Debian:13linux5.17.3-1DEBIAN-CVE-2022-49138
Debian:14linux5.17.3-1DEBIAN-CVE-2022-49138
Ubuntu:22.04:LTSlinuxno fix listedUBUNTU-CVE-2022-49138
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2022-49138
Ubuntu:22.04:LTSlinux-awsno fix listedUBUNTU-CVE-2022-49138
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2022-49138
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2022-49138
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2022-49138
Ubuntu:22.04:LTSlinux-azureno fix listedUBUNTU-CVE-2022-49138
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2022-49138
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2022-49138
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2022-49138
Ubuntu:22.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2022-49138
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2022-49138
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2022-49138
Ubuntu:22.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2022-49138
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2022-49138
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2022-49138
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2022-49138
Ubuntu:22.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2022-49138
Ubuntu:22.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2022-49138
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2022-49138
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2022-49138
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2022-49138
Ubuntu:22.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2022-49138
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2022-49138
Ubuntu:22.04:LTSlinux-intel-iotgno fix listedUBUNTU-CVE-2022-49138
Ubuntu:22.04:LTSlinux-kvmno fix listedUBUNTU-CVE-2022-49138
Ubuntu:22.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2022-49138
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2022-49138
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2022-49138
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2022-49138
Ubuntu:22.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2022-49138
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2022-49138
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2022-49138
Ubuntu:22.04:LTSlinux-nvidia-tegrano fix listedUBUNTU-CVE-2022-49138
Ubuntu:22.04:LTSlinux-nvidia-tegra-igxno fix listedUBUNTU-CVE-2022-49138
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2022-49138
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2022-49138
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2022-49138
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2022-49138
Ubuntu:22.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2022-49138
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2022-49138
Ubuntu:22.04:LTSlinux-raspino fix listedUBUNTU-CVE-2022-49138
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2022-49138
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2022-49138
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2022-49138
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2022-49138
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2022-49138
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2022-49138
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2022-49138
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2022-49138
Ubuntu:22.04:LTSlinux-xilinx-zynqmpno fix listedUBUNTU-CVE-2022-49138

Affected products (as reported)

VendorProductVersions
Linux Linux 7d0db0a373195385a2e0b19d1f5e4b186fdcffac – before aa1ca580e3ffe62a2c5ea1c095b609b2943c52697d0db0a373195385a2e0b19d1f5e4b186fdcffac – before d5ebaa7c5f6f688959e8d40840b2249ede63b8ed
Linux Linux 2.6.27

References