CVE-2018-7541
First published: Tue Feb 27 2018(Updated: )
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.
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 4.17.1+2-gb773c48e36-1 4.17.2+55-g0b56bed864-1 | |
| Xen xen-unstable | <=4.10.0 | |
| Debian GNU/Linux | =9.0 |
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Reference Links
- https://xenbits.xen.org/xsa/advisory-255.html
- https://security-tracker.debian.org/tracker/CVE-2018-7541
- http://www.securityfocus.com/bid/103177
- http://www.securitytracker.com/id/1040775
- https://lists.debian.org/debian-lts-announce/2018/03/msg00003.html
- https://lists.debian.org/debian-lts-announce/2018/11/msg00013.html
- https://security.gentoo.org/glsa/201810-06
- https://support.citrix.com/article/CTX232096
- https://support.citrix.com/article/CTX232655
- https://www.debian.org/security/2018/dsa-4131
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.
- collector/security-tracker-debian
- agent/references
- agent/type
- collector/mitre-cve
- source/MITRE
- agent/severity
- agent/author
- agent/last-modified-date
- agent/description
- agent/first-publish-date
- 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/4.10.0
- vendor/debian
- canonical/debian gnu/linux
- version/debian gnu/linux/9.0