Potential NULL Pointer Dereference in nfc_genl_dump_ses_done
Summary
GSD-2021-1002425: nfc: fix potential NULL pointer deref in nfc_genl_dump_ses_done. Affects Kernel versions >= ac22ac466a659f1b2e02a2e2ee23fc5c42da2c95, < 3b861a40325eac9c4c13b6c53874ad90617e944d. No fix is published. How to fix ↓
Check if this vulnerability affects your application
Upload a manifest or SBOM and we'll show whether you're affected, plus every other risky package in the same scan.
No signup required · Results in about 60 seconds
Background
The Kernel package is a fundamental component of the Linux operating system. It provides the core functionality and interfaces for the system's hardware, software, and processes. The NFC (Near Field Communication) subsystem within the Kernel enables communication between devices in close proximity. The nfc_genl_dump_ses_done function is responsible for dumping NFC session information. However, a potential vulnerability exists within this function that could lead to a NULL pointer dereference.
Vulnerability Detail
The vulnerability arises from a NULL pointer dereference in the nfc_genl_dump_ses_done function. This means that the function attempts to access or manipulate data using a pointer that points to NULL, resulting in a crash or unexpected behavior. An attacker could potentially exploit this vulnerability to cause a denial of service (DoS) by triggering the NULL pointer dereference. The impact and attack plausibility of this vulnerability have not been proven yet.
How To Fix
No fixed version is published for this vulnerability.
Tip — Not sure whether your app is affected? Vulert can check the versions your app actually runs. Scan free →
Workaround
No specific workaround has been provided for this vulnerability.
Conclusion
In conclusion, a potential NULL pointer dereference vulnerability has been identified in the nfc_genl_dump_ses_done function of the Kernel package. This vulnerability can potentially be exploited to cause a denial of service (DoS) attack. It is crucial to update to the latest version of the Linux Kernel to mitigate this vulnerability. For further support and assistance in vulnerability remediation, you can reach out to DevNack.com.
See every vulnerability recorded for Kernel →
FAQ
The potential impact of this vulnerability is a denial of service (DoS) attack, where an attacker can crash the system or cause unexpected behavior by triggering the NULL pointer dereference.
You can use the Vulert playground at Vulert Scanner to check if your system is affected by this vulnerability. Simply upload your package-lock.json file to the playground, and it will analyze and alert you in real-time for any open-source vulnerabilities, including this one.
As of now, there is no known exploit for this vulnerability. However, it is still important to update to the latest version of the Linux Kernel to ensure your system is protected.
The specific prerequisites for exploiting this vulnerability are not mentioned in the provided information. However, it is always recommended to keep your system up to date with the latest security patches.
For more details about this vulnerability, you can refer to the source link provided in the database_specific section of the vulnerability details.
Related vulnerabilities
Recent vulnerabilities recorded for Kernel.
