CVE-2019-17346: Input Validation
First published: Tue Oct 08 2019(Updated: )
An issue was discovered in Xen through 4.11.x allowing x86 PV guest OS users to cause a denial of service or gain privileges because of an incompatibility between Process Context Identifiers (PCID) and TLB flushes.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/xen | 4.11.4+107-gef32c7afa2-1 4.14.6-1 4.14.5+94-ge49571868d-1 4.17.2+76-ge1f9cb16e2-1~deb12u1 4.17.2+76-ge1f9cb16e2-1 | |
| Xen xen-unstable | <=4.11.2 | |
| Debian GNU/Linux | =9.0 | |
| Debian GNU/Linux | =10.0 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2019-17346?
CVE-2019-17346 has a moderate severity level as it can lead to denial of service or privilege escalation for x86 PV guest OS users.
How do I fix CVE-2019-17346?
To fix CVE-2019-17346, update your Xen software to version 4.11.4+107-gef32c7afa2-1 or newer.
Which versions of Xen are affected by CVE-2019-17346?
CVE-2019-17346 affects Xen versions up to and including 4.11.2.
What systems are impacted by CVE-2019-17346?
CVE-2019-17346 impacts x86-based systems running affected versions of Xen, specifically under Debian Linux distributions.
Is there a workaround for CVE-2019-17346?
There are no established workarounds for CVE-2019-17346, so upgrading to a patched version is recommended.
- collector/security-tracker-debian
- agent/type
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/severity
- agent/references
- agent/weakness
- agent/author
- agent/remedy
- agent/first-publish-date
- agent/description
- agent/event
- agent/source
- agent/softwarecombine
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- package-manager/debian
- vendor/xen
- canonical/xen xen-unstable
- version/xen xen-unstable/4.11.2
- vendor/debian
- canonical/debian gnu/linux
- version/debian gnu/linux/9.0
- version/debian gnu/linux/10.0