Vulnerability in Xen
CVE-2018-7541
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.004 (34.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 34th percentile — 34.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Xen
- Debian Linux — versions 9.0
Public proof-of-concept exploits
References
- www.securityfocus.com/bid/103177 (vdb-entry)
- security.gentoo.org/glsa/201810-06 (vendor-advisory)
- lists.debian.org/debian-lts-announce/2018/11/msg00013.html (mailing-list)
- xenbits.xen.org/xsa/advisory-255.html (Vendor Advisory)
- lists.debian.org/debian-lts-announce/2018/03/msg00003.html (mailing-list, Third Party Advisory)
- www.securitytracker.com/id/1040775 (vdb-entry)
- www.debian.org/security/2018/dsa-4131 (vendor-advisory, Third Party Advisory)
- support.citrix.com/article/CTX232655
- support.citrix.com/article/CTX232096
Frequently asked questions
- What is CVE-2018-7541?
- CVE-2018-7541 is a high-severity vulnerability in Xen. CVSS score: 8.8/10. Published 2018-02-27.
- How severe is CVE-2018-7541?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2018-7541 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.