CVE-2022-49138
published 2025-02-26CVE-2022-49138: In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_event: Ignore multiple conn complete events When one of the three connection…
PriorityP421medium5.7CVSS 3.1
AVAACLPRLUINSUCNINAH
EPSS
0.40%
32.3th percentile
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
11 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 5.17.3-1 (bookworm) | linux 5.17.3-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= 7d0db0a373195385a2e0b19d1f5e4b186fdcffac < aa1ca580e3ffe62a2c5ea1c095b609b2943c5269 | aa1ca580e3ffe62a2c5ea1c095b609b2943c5269 |
| linux | linux | >= 7d0db0a373195385a2e0b19d1f5e4b186fdcffac < d5ebaa7c5f6f688959e8d40840b2249ede63b8ed | d5ebaa7c5f6f688959e8d40840b2249ede63b8ed |
| linux | linux_kernel | < 5.17.3 | 5.17.3 |
| linux | linux_kernel | >= 0 < 5.17.3-1 | 5.17.3-1 |
| linux | linux_kernel | >= 0 < 5.17.3-1 | 5.17.3-1 |
| linux | linux_kernel | >= 0 < 5.17.3-1 | 5.17.3-1 |
| msrc | cbl2_kernel_5.15.186.1-1_on_cbl_mariner_2.0 | — | — |
| msrc | cbl2_kernel_5.15.200.1-1_on_cbl_mariner_2.0 | — | — |
| msrc | cbl2_kernel_5.15.202.1-1_on_cbl_mariner_2.0 | — | — |
CVSS provenance
nvdv3.15.7MEDIUMCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.7MEDIUM
vendor_debian5.7MEDIUM
vendor_msrc5.7MEDIUM
vendor_redhat5.7MEDIUM
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GHSA
GHSA-79x7-rvwv-cm9m: In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: hci_event: Ignore multiple conn complete events
When one of the three
ghsa_unreviewed·2025-09-23
CVE-2022-49138 [MEDIUM] CWE-476 GHSA-79x7-rvwv-cm9m: In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: hci_event: Ignore multiple conn complete events
When one of the three
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
OSV
CVE-2022-49138: In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_event: Ignore multiple conn complete events When one of the three c
osv·2025-02-26·CVSS 5.7
CVE-2022-49138 [MEDIUM] CVE-2022-49138: In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_event: Ignore multiple conn complete events When one of the three c
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
Red Hat
kernel: Bluetooth: hci_event: Ignore multiple conn complete events
vendor_redhat·2025-02-26·CVSS 5.7
CVE-2022-49138 [MEDIUM] CWE-672 kernel: Bluetooth: hci_event: Ignore multiple conn complete events
kernel: Bluetooth: hci_event: Ignore multiple conn complete events
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
CVE-2022-49138 is a vulnerability in the Linux kernel's Bluetooth subsy
Microsoft
Bluetooth: hci_event: Ignore multiple conn complete events
vendor_msrc·2025-02-11·CVSS 5.7
CVE-2022-49138 [MEDIUM] CWE-476 Bluetooth: hci_event: Ignore multiple conn complete events
Bluetooth: hci_event: Ignore multiple conn complete events
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for more information. If impact to additional products is identified, we will update the CVE to reflect this.
Mariner: Mariner
Linux: Linux
Customer Action Required: Yes
Debian
CVE-2022-49138: linux - In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ...
vendor_debian·2022·CVSS 5.7
CVE-2022-49138 [MEDIUM] CVE-2022-49138: linux - In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ...
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
Scope: local
bookworm: resolved (fixed in 5.17.3-1)
bullseye: open
forky: resolved (fixed in 5.17.3-1)
sid: resolved (fixed in 5.17.3-1)
tri
No detection rules found.
No public exploits indexed.
2025-02-26
Published