Resource exhaustion in Xen
CVE-2017-15596
An issue was discovered in Xen 4.4.x through 4.9.x allowing ARM guest OS users to cause a denial of service (prevent physical CPU usage) because of lock mishandling upon detection of an add-to-physmap error.
Vulnerability class: DoS (Denial of Service)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.0 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.004 (28.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 28th percentile — 28.3% 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 — versions 4.4.0, 4.4.1, 4.4.2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.debian.org/security/2017/dsa-3969 (vendor-advisory)
- xenbits.xen.org/xsa/advisory-235.html (Patch, Mitigation, Vendor Advisory)
- www.securitytracker.com/id/1039568 (VDB Entry, Third Party Advisory, vdb-entry)
Frequently asked questions
- What is CVE-2017-15596?
- CVE-2017-15596 is a medium-severity vulnerability in Xen, classified under Uncontrolled Resource Consumption. CVSS score: 6.0/10. Published 2017-10-18.
- How severe is CVE-2017-15596?
- Medium severity. CVSS v3 base score is 6.0 out of 10.
- Is CVE-2017-15596 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.