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CVE-2022-20566

Status Candidate

Overview

In l2cap_chan_put of l2cap_core, there is a possible use after free due to improper locking. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-165329981References: Upstream kernel

Related Files

Ubuntu Security Notice USN-5926-1
Posted Mar 7, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5926-1 - Kirill Tkhai discovered that the XFS file system implementation in the Linux kernel did not calculate size correctly when pre-allocating space in some situations. A local attacker could use this to expose sensitive information. Lee Jones discovered that a use-after-free vulnerability existed in the Bluetooth implementation in the Linux kernel. A local attacker could use this to cause a denial of service or possibly execute arbitrary code.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2021-4155, CVE-2022-20566, CVE-2022-41858, CVE-2022-42895, CVE-2023-0045, CVE-2023-23559
SHA-256 | a41914777c5a10c7ff57a46d9d192b11651b4647733ebe5adb378ce5a4e9e4af
Ubuntu Security Notice USN-5913-1
Posted Mar 3, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5913-1 - It was discovered that the Upper Level Protocol subsystem in the Linux kernel did not properly handle sockets entering the LISTEN state in certain protocols, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Lee Jones discovered that a use-after-free vulnerability existed in the Bluetooth implementation in the Linux kernel. A local attacker could use this to cause a denial of service or possibly execute arbitrary code.

tags | advisory, denial of service, arbitrary, kernel, local, protocol
systems | linux, ubuntu
advisories | CVE-2022-20566, CVE-2022-3565, CVE-2022-36879, CVE-2022-43750, CVE-2022-4379, CVE-2022-47520, CVE-2023-0045, CVE-2023-0461
SHA-256 | a4ae9d6a9647addb9e05bc1aa69a3349777b844421602b87d15394ae0ac3f4d8
Ubuntu Security Notice USN-5884-1
Posted Feb 23, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5884-1 - Kirill Tkhai discovered that the XFS file system implementation in the Linux kernel did not calculate size correctly when pre-allocating space in some situations. A local attacker could use this to expose sensitive information. Lee Jones discovered that a use-after-free vulnerability existed in the Bluetooth implementation in the Linux kernel. A local attacker could use this to cause a denial of service or possibly execute arbitrary code.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2021-4155, CVE-2022-20566, CVE-2022-41858, CVE-2022-42895, CVE-2023-0045, CVE-2023-23559
SHA-256 | 9fb79a1f43ccc6d619c96a07def2979ca05b8979050b2933267dc0bc2e17d747
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