CVE-2015-8338: xen 7PK - Security Features
Vulnerability summary
CVE-2015-8338 is a high (CVSS 7.2) 7PK - Security Features vulnerability in xen. EPSS estimates a 0.42% chance of exploitation in the next 30 days, higher than 36.4% of scored vulnerabilities.
Not severe (CVSS 7.2, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 2Timeline
- 17-12-2015PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
Xen 4.6.x and earlier does not properly enforce limits on page order inputs for the (1) XENMEM_increase_reservation, (2) XENMEM_populate_physmap, (3) XENMEM_exchange, and possibly other HYPERVISOR_memory_op suboperations, which allows ARM guest OS administrators to cause a denial of service (CPU consumption, guest reboot, or watchdog timeout and host reboot) and possibly have unspecified other impact via unknown vectors.
CVSS metrics
1 score · 1 source · 1 versionEPSS trend
Probability
0.42%
Chance of exploitation in the next 30 days
Percentile
36%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.42% on 05-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, no authentication (CVSS vector). Other conditions: not stated in public data.
Debian1 product
- xen< 4.8.0~rc3-1
Ubuntu1 product
- xen< 4.4.2-0ubuntu0.14.04.4
Xen1 product
- xen≤ 4.6.0
3 vendors · 3 products
