Buffer Overflow Vulnerability in cifs Package

Kernel Updated 02 Oct 2025

Summary

24/04/2022

Disclosed on

N/A

Severity

No i

Fix available

Unrated

Severity

Not published

CVSS Score

GSD-2022-1000977: cifs: potential buffer overflow in handling symlinks. Affects Kernel versions >= c69c1b6eaea1b3e1eecf7ad2fba0208ac4a11131, < 515e7ba11ef043d6febe69389949c8ef5f25e9d0. No fix is published. How to fix ↓

Free scan

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.

Check my app free

No signup required · Results in about 60 seconds

Upload your dependency manifest or SBOM

Drag & drop your file here or Browse

Java Javascript PHP Python Go Rust Ruby Dart C/C++ Elixir CycloneDX SPDX

Upload a supported dependency manifest or SBOM. No installation or source-code access required.

See supported files and SBOM formats

SBOM sbom.json · bom.json · bom.xml · *.spdx.json · *.cdx.json · *.cdx.xml

Java pom.xml · gradle.lockfile · buildscript-gradle.lockfile

Javascript package-lock.json · yarn.lock · pnpm-lock.yaml

PHP composer.lock

Python poetry.lock · requirements.txt · Pipfile.lock

Go go.mod

Rust Cargo.lock

Ruby Gemfile.lock

Dart pubspec.lock

C/C++ conan.lock

Elixir mix.lock

Enter your work email to receive your report link.

Verify your email to view the full report and start 30 days of continuous monitoring. No credit card required.

Background

The cifs package is a component of the Linux Kernel that provides support for the Common Internet File System (CIFS) protocol. CIFS allows Linux systems to access files and resources on remote Windows servers. It is widely used for network file sharing and provides features such as file and printer sharing, authentication, and access control. However, a vulnerability has been discovered in the cifs package that could potentially lead to a buffer overflow.

Vulnerability Detail

The vulnerability in the cifs package involves a potential buffer overflow when handling symlinks. A buffer overflow occurs when a program writes more data into a buffer than it can hold, leading to memory corruption and potential exploitation by an attacker. In this case, the vulnerability could be triggered when processing symlinks, potentially allowing an attacker to execute arbitrary code or crash the system. The impact and attack plausibility of this vulnerability have not yet been proven.

How To Fix

No fixed version is published for this vulnerability.

The buffer overflow vulnerability in the cifs package has been fixed in Linux Kernel version v5.17.4. To fix this vulnerability, it is recommended to update the Linux Kernel to the latest version available. You can obtain the latest version from the official Linux Kernel repository: Linux Kernel Repository

Tip — Not sure whether your app is affected? Vulert can check the versions your app actually runs. Scan free →

Workaround

There is no specific workaround mentioned for this vulnerability.

Conclusion

The buffer overflow vulnerability in the cifs package can be fixed by updating the Linux Kernel to version v5.17.4 or later. It is important to keep the system up to date to ensure the security and stability of the system. For further support on vulnerability remediation, you can contact DevNack.com.

See every vulnerability recorded for Kernel →