CVE-2022-42896
What it is
There are use-after-free vulnerabilities in the Linux kernel's net/bluetooth/l2cap_core.c's l2cap_connect and l2cap_le_connect_req functions which may allow code execution and leaking kernel memory (respectively) remotely via Bluetooth. A remote attacker could execute code leaking kernel memory via Bluetooth if within proximity of the victim. We recommend upgrading past commit https://www.google.com/url https://github.com/torvalds/linux/commit/711f8c3fb3db61897080468586b970c87c61d9e4 https://www.google.com/url
At a glance
- Exploitability
- Can be exploited from the same network segment without logging in. High risk of data exposure, data tampering.
- Exploit odds
- 2.5% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 2.5% in the next 30 days (EPSS).
- Severity: 8.0 HIGH (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 2.5% · EPSS, next 30 days
- Weakness
- CWE-416 · Use after free
- Record status
- Modified
Affected
- Linux Kernel < 4.9.335
- Linux Kernel < 4.14.301
- Linux Kernel < 4.19.268
- Linux Kernel < 5.4.226
- Linux Kernel < 5.10.154
- Linux Kernel < 5.15.78
- Linux Kernel < 6.0.8
Attack profile CVSS 3.1 · 8.0
- Attack vector
- Adjacent network
- Complexity
- High
- Privileges needed
- None
- User interaction
- None
- Scope
- Changed
- Confidentiality
- High
- Integrity
- High
- Availability
- None
Raw vector
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2022-42896.md and follow it. Check whether this project is affected by CVE-2022-42896. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://github.com/torvalds/linux/commit/711f8c3fb3db61897080468586b970c87c61d9e4
- https://kernel.dance/#711f8c3fb3db61897080468586b970c87c61d9e4
- https://github.com/torvalds/linux/commit/711f8c3fb3db61897080468586b970c87c61d9e4
- https://kernel.dance/#711f8c3fb3db61897080468586b970c87c61d9e4
References
- https://github.com/torvalds/linux/commit/711f8c3fb3db61897080468586b970c87c61d9e4
- https://kernel.dance/#711f8c3fb3db61897080468586b970c87c61d9e4
- https://github.com/torvalds/linux/commit/711f8c3fb3db61897080468586b970c87c61d9e4
- https://kernel.dance/#711f8c3fb3db61897080468586b970c87c61d9e4
- https://cert-portal.siemens.com/productcert/html/ssa-794697.html