CVE-2025-36927: Tachyon Server Out of Bounds Write Vulnerability
Summary
CVE-2025-36927: In GetTachyonCommand of tachyon_server_common.h, there is a possible out of bounds write due to a missing bounds check. Affects :unknown: versions >= Pixel-family specific:0, < Pixel-family specific:2025-12-05. Fixed in Pixel-family specific:2025-12-05. How to fix ↓
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Background
Tachyon is a distributed storage system that enables reliable data sharing at memory speed across cluster computing frameworks. It is designed to provide high throughput and low latency access to data. The vulnerability in question affects the Tachyon server, specifically in the GetTachyonCommand function within the tachyon_server_common.h file, which is critical for the server's operation.
Vulnerability Detail
The vulnerability arises from a missing bounds check in the GetTachyonCommand function, leading to a potential out of bounds write. This flaw can be exploited to escalate privileges locally without requiring additional execution privileges. The lack of user interaction needed for exploitation makes this vulnerability particularly concerning, as it can be triggered by an attacker with access to the server environment.
How To Fix
Minimum fixed version
Pixel-family specific:2025-12-05
This is the first release that contains the fix.
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Workaround
As a temporary workaround, you can restrict access to the Tachyon server to trusted users only, minimizing the risk of exploitation until the patch is applied. Additionally, consider implementing strict input validation to mitigate the risk of out of bounds writes.
Conclusion
The CVE-2025-36927 vulnerability in the Tachyon server poses a significant risk due to its potential for local privilege escalation without user interaction. It is crucial to apply the available patch promptly and consider temporary workarounds to mitigate risks until the update can be implemented.
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FAQ
CVE-2025-36927 is a vulnerability in the Tachyon server that allows for a potential out of bounds write due to a missing bounds check.
Exploitation of this vulnerability could lead to local escalation of privileges, allowing an attacker to gain unauthorized access to sensitive data or system functionalities.
No, user interaction is not needed for exploitation, making it easier for an attacker to exploit the vulnerability.
You can use Vulert, which monitors and alerts for open-source vulnerabilities in real-time. You can check if your application is affected by this vulnerability using the Vulert playground without any signup.
If you cannot update immediately, implement access restrictions and input validation as temporary measures to reduce the risk of exploitation.
References
Related vulnerabilities
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