Sept. 5, 2023, 11:35 p.m. |

Ubuntu security notices ubuntu.com

Ruihan Li discovered that the bluetooth subsystem in the Linux kernel did
not properly perform permissions checks when handling HCI sockets. A
physically proximate attacker could use this to cause a denial of service
(bluetooth communication). (CVE-2023-2002)

Zi Fan Tan discovered that the binder IPC implementation in the Linux
kernel contained a use-after-free vulnerability. A local attacker could use
this to cause a denial of service (system crash) or possibly execute
arbitrary code. (CVE-2023-21255)

Juan Jose Lopez Jaimez, Meador Inge, …

attacker bluetooth communication cve denial of service fan free handling hci implementation ipc kernel linux linux kernel local permissions service sockets subsystem use-after-free usn vulnerabilities vulnerability

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