Local privilege escalation via HID input assumption
Published Oct 20, 2022 · Updated May 8, 2025
Out-of-bounds write in Linux Kernel 5.19-rc1 allows local users to crash the system or potentially escalate privileges via a malicious HID device. The bigben_probe function in drivers/hid/hid-bigbenff.c assumes every BigBen controller has an input and dereferences the first entry without checking, so a crafted device with no inputs causes an out-of-bounds write. Exploitation requires a locally attached malicious HID device; the demonstrated impact is a kernel crash, with potential privilege escalation or code execution.
Summary
What happened
Out-of-bounds write in Linux Kernel 5.19-rc1 allows local users to crash the system or potentially escalate privileges via a malicious HID device. The bigben_probe function in drivers/hid/hid-bigbenff.c assumes every BigBen controller has an input and dereferences the first entry without checking, so a crafted device with no inputs causes an out-of-bounds write. Exploitation requires a locally attached malicious HID device; the demonstrated impact is a kernel crash, with potential privilege escalation or code execution.
The record
- CVE
- CVE-2022-3577
- Published
- Oct 20, 2022
- Updated
- May 8, 2025
- Vendor
- The Linux Kernel Organization
- Product
- Linux Kernel
- Classifications
- CWE-401, CWE-787, T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Oct 20, 2022CVE publishedPublication date reported by the CVE source.
- May 8, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=Linux kernel 5.19-rc1
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo