Vulnerability in Xen
CVE-2014-7156
The x86_emulate function in arch/x86/x86_emulate/x86_emulate.c in Xen 3.3.x through 4.4.x does not check the supervisor mode permissions for instructions that generate software interrupts, which allows local HVM guest users to cause a denial of service (guest crash) via unspecified vectors.
Published · last modified .
CVSS v2 metric
CVSS v2 base score 3.3 (Low). Vector: AV:A/AC:L/Au:N/C:N/I:N/A:P. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.008 (56.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 56th percentile — 56.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000
Affected products
- Xen — versions 3.3.0, 3.3.1, 3.3.2
Weakness classification (CWE)
References
- lists.opensuse.org/opensuse-security-announce/2014-10/msg00003.html (vendor-advisory)
- lists.fedoraproject.org/pipermail/package-announce/2014-October/140483.html (vendor-advisory)
- xenbits.xen.org/xsa/advisory-106.html (Patch, Vendor Advisory)
- lists.opensuse.org/opensuse-security-announce/2014-10/msg00002.html (vendor-advisory)
- support.citrix.com/article/CTX200218
- www.securityfocus.com/bid/70062 (vdb-entry)
- lists.fedoraproject.org/pipermail/package-announce/2014-October/140418.html (vendor-advisory)
- www.securitytracker.com/id/1030889 (vdb-entry)
- www.debian.org/security/2014/dsa-3041 (vendor-advisory)
- secunia.com/advisories/61858 (third-party-advisory)