Use-After-Free in siaNno smsusb Module Allows Local DoS in Linux
CVE-2023-4132 Published on August 3, 2023
Kernel: smsusb: use-after-free caused by do_submit_urb()
A use-after-free vulnerability was found in the siano smsusb module in the Linux kernel. The bug occurs during device initialization when the siano device is plugged in. This flaw allows a local user to crash the system, causing a denial of service condition.
Vulnerability Analysis
CVE-2023-4132 is exploitable with local system access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity, and a high impact on availability.
Timeline
Reported to Red Hat.
Made public.
Weakness Type
What is a Dangling pointer Vulnerability?
Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code.
CVE-2023-4132 has been classified to as a Dangling pointer vulnerability or weakness.
Products Associated with CVE-2023-4132
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Affected Versions
Red Hat Enterprise Linux 8:- Version 0:4.18.0-513.5.1.rt7.307.el8_9 and below * is unaffected.
- Version 0:4.18.0-513.5.1.el8_9 and below * is unaffected.
- Version 0:4.18.0-372.91.1.el8_6 and below * is unaffected.
- Version 0:4.18.0-477.43.1.el8_8 and below * is unaffected.
- Version 0:4.18.0-372.91.1.el8_6 and below * is unaffected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.