Vulnerability identifier: #VU62484

Vulnerability risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-26878

CWE-ID: CWE-401

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Linux kernel
Operating systems & Components / Operating system

Vendor:

Description
The vulnerability allows a local user to perform DoS attack on the target system.

The vulnerability exists due memory leak within the drivers/bluetooth/virtio_bt.c file in the Linux kernel. A local user can trigger leak memory and perform denial of service attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

---

External links
http://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.3
http://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=1d0688421449718c6c5f46e458a378c9b530ba18
http://lore.kernel.org/linux-bluetooth/1A203F5E-FB5E-430C-BEA3-86B191D69D58@holtmann.org/
http://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.17
http://www.openwall.com/lists/oss-security/2022/03/11/1

---

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.