CVE-2018-7541: High severity XEN Xen vulnerability
An issue was discovered in Xen through 4.10.x allowing guest OS users to cause a denial of service (hypervisor crash) or gain privileges by triggering a grant-table transition from v2 to v1.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
debian/xento a version that resolves this vulnerability.Fixed in 4.11.4+107-gef32c7afa2-1Fixed in 4.14.6-1Fixed in 4.14.5+94-ge49571868d-1Fixed in 4.17.1+2-gb773c48e36-1Fixed in 4.17.2+55-g0b56bed864-1
Event History
Frequently Asked Questions
What is the severity of CVE-2018-7541?
CVE-2018-7541 has a severity rating that can lead to denial of service or privilege escalation.
How do I fix CVE-2018-7541?
To mitigate CVE-2018-7541, update to versions 4.11.4+107-gef32c7afa2-1, 4.14.6-1, or later versions of Xen.
What versions of Xen are affected by CVE-2018-7541?
CVE-2018-7541 affects Xen versions up to and including 4.10.x.
Can guest OS users exploit CVE-2018-7541?
Yes, guest OS users can exploit CVE-2018-7541 to cause a hypervisor crash or gain privileges.
Is CVE-2018-7541 relevant for Debian users?
Yes, Debian users running the affected Xen versions should be aware of CVE-2018-7541 and apply appropriate updates.