Information Exposure in Intel Atom Processors via Xen
Summary
CVE-2023-28746: Information exposure through microarchitectural state after transient execution from some register files for some Intel(R) Atom(R) Processors may allow an authenticated user to potentially enable information disclosure v... Affects xen versions < 4.16.5-r7. Fixed in 4.16.5-r7. How to fix ↓
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Background
Xen is an open-source hypervisor that provides virtualization services for various operating systems. It allows multiple guest operating systems to run on a single host machine, providing isolation and resource management. Xen is commonly used in cloud computing environments and virtualization platforms. This vulnerability affects Xen running on Alpine Linux versions 3.16, 3.17, 3.18, and 3.19, specifically on Intel Atom processors.
Vulnerability Detail
The vulnerability, identified as CVE-2023-28746, involves information exposure through microarchitectural state after transient execution from some register files for certain Intel Atom processors. An authenticated user with local access may potentially enable information disclosure. This vulnerability could lead to the exposure of sensitive data, compromising the security and privacy of the affected system.
How To Fix
Minimum fixed version
4.16.5-r7
This is the first release that contains the fix.
sudo apk add --upgrade xenTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
There is no specific workaround mentioned for this vulnerability.
Conclusion
The vulnerability CVE-2023-28746 exposes Intel Atom processors running Xen on Alpine Linux versions 3.16, 3.17, 3.18, and 3.19 to information exposure and potential information disclosure. It is crucial to update the Xen package to the recommended versions to mitigate this vulnerability. For further support and assistance in vulnerability remediation, contact DevNack.com.
See every vulnerability recorded for xen →
FAQ
Xen is an open-source hypervisor that provides virtualization services for various operating systems.
Alpine Linux versions 3.16, 3.17, 3.18, and 3.19 are affected.
This vulnerability allows an authenticated user with local access to potentially enable information disclosure, leading to the exposure of sensitive data.
To fix this vulnerability, update the Xen package to the recommended versions mentioned in the 'how_to_fix' section.
No specific workaround has been mentioned for this vulnerability.
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