Xen - Security Update (DLA-1270-1)
Summary
DLA-1270-1: xen - security update. Affects xen versions < 4.1.6.lts1-12. Fixed in 4.1.6.lts1-12. 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
Xen is a hypervisor that provides virtualization services for running multiple operating systems on a single physical machine. It allows for the isolation and management of virtual machines (VMs) and is commonly used in cloud computing environments. However, multiple vulnerabilities have been discovered in Xen, which could potentially lead to privilege escalation.
Vulnerability Detail
The vulnerability (CVE-2017-15590, XSA-237) affects Xen and could result in privilege escalation. Unfortunately, the patches for this vulnerability are too intrusive to backport to Debian 7 Wheezy, so it will not be fixed in that version. The vulnerability can be mitigated by not passing through physical devices to untrusted guests. More information about this vulnerability can be found at https://xenbits.xen.org/xsa/advisory-237.html.
How To Fix
Minimum fixed version
4.1.6.lts1-12
This is the first release that contains the fix.
sudo apt-get install --only-upgrade xenTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
A possible workaround for this vulnerability is to avoid passing physical devices to untrusted guests. By not allowing untrusted guests to access physical devices, the impact of the vulnerability can be mitigated.
Conclusion
In conclusion, Xen is affected by a vulnerability that could result in privilege escalation. While the patches for this vulnerability are too intrusive to backport to Debian 7 Wheezy, it is recommended to upgrade the xen packages to version 4.1.6.lts1-12 or later. Additionally, avoiding the passing of physical devices to untrusted guests can help mitigate the impact of the vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for xen →
FAQ
Xen is a hypervisor that provides virtualization services for running multiple operating systems on a single physical machine.
Privilege escalation is the act of exploiting a vulnerability to gain elevated privileges, allowing an attacker to perform actions they would not normally be able to do.
CVE-2017-15590 is the Common Vulnerabilities and Exposures identifier for the vulnerability in Xen that is being addressed by this security update.
To upgrade the xen packages, you can use the package manager of your Debian 7 Wheezy system. Make sure to update to version 4.1.6.lts1-12 or later.
Yes, you can mitigate the vulnerability by not passing physical devices to untrusted guests. This can help prevent the exploitation of the vulnerability.
Related vulnerabilities
Recent vulnerabilities recorded for xen.
