Vulnerability in Xen
CVE-2015-2151
The x86 emulator in Xen 3.2.x through 4.5.x does not properly ignore segment overrides for instructions with register operands, which allows local guest users to obtain sensitive information, cause a denial of service (memory corruption), or possibly execute arbitrary code via unspecified vectors.
Published · last modified .
CVSS v2 metric
CVSS v2 base score 7.2 (High). Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.005 (43.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 44th percentile — 43.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.005 · change: -0.000
Affected products
- Xen — versions 3.2.0, 3.2.1, 3.2.2
- Debian Linux — versions 7.0
- Fedoraproject Fedora — versions 20, 21, 22
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www1.huawei.com/en/security/psirt/security-bulletins/security-advisories/hw-423…
- support.citrix.com/article/CTX200484
- lists.fedoraproject.org/pipermail/package-announce/2015-March/152776.html (vendor-advisory, Third Party Advisory)
- lists.fedoraproject.org/pipermail/package-announce/2015-March/152588.html (vendor-advisory, Third Party Advisory)
- www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
- xenbits.xen.org/xsa/advisory-123.html (Patch, Vendor Advisory)
- www.securitytracker.com/id/1031903 (VDB Entry, Third Party Advisory, vdb-entry)
- www.debian.org/security/2015/dsa-3181 (vendor-advisory, Third Party Advisory)
- kb.juniper.net/InfoCenter/index
- lists.fedoraproject.org/pipermail/package-announce/2015-March/152483.html (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2015-2151?
- CVE-2015-2151 is a vulnerability in Xen, classified under CWE-264. Published 2015-03-12.
- Is CVE-2015-2151 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.