Information disclosure in Citrix Xenserver
CVE-2015-8555
Xen 4.6.x, 4.5.x, 4.4.x, 4.3.x, and earlier do not initialize x86 FPU stack and XMM registers when XSAVE/XRSTOR are not used to manage guest extended register state, which allows local guest domains to obtain sensitive information from oth…
Vulnerability class: Information Disclosure
EPSS: 0.006 (68.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.6 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N.
Affected products
- Citrix Xenserver — versions 6.0
- Xen — versions 4.3.0, 4.3.1, 4.3.2
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (x_refsource_CONFIRM)
- DSA-3519 (vendor-advisory, x_refsource_DEBIAN)
- 1034477 (vdb-entry, x_refsource_SECTRACK)
- 79543 (vdb-entry, x_refsource_BID)
- cve@mitre.org (x_refsource_CONFIRM, Patch, Vendor Advisory)
- GLSA-201604-03 (vendor-advisory, x_refsource_GENTOO)
- cve@mitre.org (x_refsource_CONFIRM)
Frequently asked questions
- What is CVE-2015-8555?
- CVE-2015-8555 is a high-severity vulnerability in Citrix Xenserver, classified under Information Disclosure. CVSS score: 8.6/10. Published 2016-04-13.
- How severe is CVE-2015-8555?
- High severity. CVSS v3 base score is 8.6 out of 10.