Vulnerability in Xen
CVE-2017-7228
An issue (known as XSA-212) was discovered in Xen, with fixes available for 4.8.x, 4.7.x, 4.6.x, 4.5.x, and 4.4.x. The earlier XSA-29 fix introduced an insufficient check on XENMEM_exchange input, allowing the caller to drive hypervisor memory accesses outside of the guest provided input/output arrays.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.2 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.016 (74.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 74th percentile — 74.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.016 · newest: 0.016 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.securityfocus.com/bid/97375 (VDB Entry, Third Party Advisory, vdb-entry)
- xenbits.xen.org/xsa/advisory-212.html (Patch, Vendor Advisory)
- openwall.com/lists/oss-security/2017/04/04/3 (Mailing List, Third Party Advisory)
- github.com/QubesOS/qubes-secpack/blob/master/QSBs/qsb-029-2017.txt
- www.debian.org/security/2017/dsa-3847 (vendor-advisory)
- www.exploit-db.com/exploits/41870/ (exploit)
- googleprojectzero.blogspot.com/2017/04/pandavirtualization-exploiting-xen.html (Technical Description, Third Party Advisory)
- www.securitytracker.com/id/1038223 (vdb-entry)
Frequently asked questions
- What is CVE-2017-7228?
- CVE-2017-7228 is a high-severity vulnerability in Xen, classified under Improper Validation of Array Index. CVSS score: 8.2/10. Published 2017-04-04.
- How severe is CVE-2017-7228?
- High severity. CVSS v3 base score is 8.2 out of 10.
- Is CVE-2017-7228 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.