CVE-2022-42896
Last modified
CVE-2022-42896 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. 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 . EPSS estimates a 2.01% chance of exploitation in the next 30 days.
Description
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
Metrics
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 4.9.335 |
| Linux | Linux Kernel | >= 4.10, < 4.14.301 |
| Linux | Linux Kernel | >= 4.15, < 4.19.268 |
| Linux | Linux Kernel | >= 4.20, < 5.4.226 |
| Linux | Linux Kernel | >= 5.5, < 5.10.154 |
| Linux | Linux Kernel | >= 5.11, < 5.15.78 |
| Linux | Linux Kernel | >= 5.16, < 6.0.8 |
References
- https://github.com/torvalds/linux/commit/711f8c3fb3db61897080468586b970c87c61d9e4Patch, Third Party Advisory
- https://kernel.dance/#711f8c3fb3db61897080468586b970c87c61d9e4Patch, Vendor Advisory
- https://github.com/torvalds/linux/commit/711f8c3fb3db61897080468586b970c87c61d9e4Patch, Third Party Advisory
- https://kernel.dance/#711f8c3fb3db61897080468586b970c87c61d9e4Patch, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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How Strix Helps
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