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43 lines
1.9 KiB
Markdown
43 lines
1.9 KiB
Markdown
---
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lang: en
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layout: doc
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permalink: /security/xsa/
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ref: 214
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title: Xen security advisory (XSA) tracker
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---
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This tracker shows whether Qubes OS is affected by any given [Xen Security
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Advisory (XSA)](https://xenbits.xen.org/xsa/). Shortly after a new XSA is
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published, we will add a new row to this tracker. Whenever Qubes is
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significantly affected by an XSA, a [Qubes Security Bulletin
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(QSB)](/security/qsb/) is published, and a link to that QSB is added to
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the row for the associated XSA.
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Under the "Is Qubes Affected?" column, there are two possible values: **Yes**
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or **No**.
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* **Yes** means that the *security* of Qubes OS *is* affected.
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* **No** means that the *security* of Qubes OS is *not* affected.
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## Important Notes
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* For the purpose of this tracker, we do *not* classify mere [denial-of-service
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(DoS) attacks](https://en.wikipedia.org/wiki/Denial-of-service_attack) as
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affecting the *security* of Qubes OS. Therefore, if an XSA pertains *only* to
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DoS attacks against Qubes, the value in the "Is Qubes Affected?" column will
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be **No**.
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* For simplicity, we use the present tense ("is affected") throughout this
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page, but this does **not** necessarily mean that up-to-date Qubes
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installations are *currently* affected by any particular XSA. In fact, it is
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extremely unlikely that any up-to-date Qubes installations are vulnerable to
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any XSAs on this page, since patches are almost always published concurrently
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with QSBs. Please read the QSB (if any) for each XSA for patching details.
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* Embargoed XSAs are excluded from this tracker until they are publicly
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released, since the [Xen Security
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Policy](https://www.xenproject.org/security-policy.html) does not permit us
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to state whether Qubes is affected prior to the embargo date.
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* Unused and withdrawn XSA numbers are included in the tracker for the sake of
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completeness, but they are excluded from the [Statistics](#statistics)
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section for the sake of accuracy.
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* All dates are in UTC.
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