Out-of-Bounds Read Vulnerability in drm/dp Package
Summary
GSD-2022-1001222: drm/dp: Fix OOB read when handling Post Cursor2 register. Affects Kernel versions >= 79465e0ffeb9e4866939ea562bc55367be91e595, < aeaed9a9fe694f8b1462fb81e2d33298c929180b. 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 drm/dp package is a component of the Linux Kernel that handles display-related functionality for systems using DisplayPort (DP) connections. It provides support for configuring and managing DP displays, including handling cursor registers. The vulnerability in this package allows for an out-of-bounds read when processing the Post Cursor2 register.
Vulnerability Detail
The vulnerability arises from a flaw in the handling of the Post Cursor2 register in the drm/dp package. An attacker could exploit this vulnerability to read data beyond the bounds of the intended buffer, potentially leading to information disclosure or a system crash. The vulnerability was introduced in version v5.5 of the Linux Kernel and is fixed in version v5.17.2.
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. It is recommended to apply the fix mentioned above as soon as possible.
Conclusion
The out-of-bounds read vulnerability in the drm/dp package of the Linux Kernel could allow for information disclosure or system crashes. It is crucial to update the Linux Kernel to version v5.17.2 or later to mitigate this vulnerability. Users can also utilize the Vulert Playground to check if their system is affected by this vulnerability.
See every vulnerability recorded for Kernel →
FAQ
The vulnerability could potentially allow an attacker to read sensitive data or cause a system crash.
You can use the Vulert Playground (https://vulert.com/scanner) to check if your system is affected by this vulnerability. Simply upload your package-lock.json file to the playground, and it will provide real-time alerts for open-source vulnerabilities, including this one.
No known exploits for this vulnerability have been reported at this time.
The vulnerability requires local access to the system to be exploited.
For further support on vulnerability remediation, you can contact info@devnack.com.
Related vulnerabilities
Recent vulnerabilities recorded for Kernel.
