Use After Free in Xen
CVE-2017-17045
An issue was discovered in Xen through 4.9.x allowing HVM guest OS users to gain privileges on the host OS, obtain sensitive information, or cause a denial of service (BUG and host OS crash) by leveraging the mishandling of Populate on Demand (PoD) Physical-to-Machine (P2M) errors.
Vulnerability class: Use-After-Free
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 (34.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 34th percentile — 34.5% 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
Weakness classification (CWE)
References
- www.securityfocus.com/bid/102013 (VDB Entry, Third Party Advisory, vdb-entry)
- lists.debian.org/debian-lts-announce/2018/10/msg00021.html (mailing-list)
- www.securitytracker.com/id/1039879 (VDB Entry, Third Party Advisory, vdb-entry)
- www.securityfocus.com/bid/102129 (VDB Entry, Third Party Advisory, vdb-entry)
- lists.debian.org/debian-lts-announce/2018/01/msg00003.html (mailing-list)
- xenbits.xen.org/xsa/advisory-247.html (Patch, Mitigation, Issue Tracking, Vendor Advisory)
- security.gentoo.org/glsa/201801-14 (vendor-advisory)
- support.citrix.com/article/CTX230138 (Third Party Advisory, Issue Tracking)
Frequently asked questions
- What is CVE-2017-17045?
- CVE-2017-17045 is a high-severity vulnerability in Xen, classified under Use After Free. CVSS score: 8.8/10. Published 2017-11-28.
- How severe is CVE-2017-17045?
- High severity. CVSS v3 base score is 8.8 out of 10.