Vulnerability in Xen
CVE-2014-8867
The acceleration support for the "REP MOVS" instruction in Xen 4.4.x, 3.2.x, and earlier lacks properly bounds checking for memory mapped I/O (MMIO) emulated in the hypervisor, which allows local HVM guests to cause a denial of service (host crash) via unspecified vectors.
Published · last modified .
CVSS v2 metric
CVSS v2 base score 4.9 (Medium). Vector: AV:L/AC:L/Au:N/C:N/I:N/A:C. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.005 (37.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 38th percentile — 37.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Xen — versions 3.2.1, 3.2.2, 3.2.3
- Debian Linux — versions 7.0
- openSUSE — versions 13.1, 13.2
- Red Hat Enterprise Linux — versions 5.0
- Red Hat Enterprise Linux Desktop — versions 5.0
Weakness classification (CWE)
References
- rhn.redhat.com/errata/RHSA-2015-0783.html (vendor-advisory, Third Party Advisory)
- security.gentoo.org/glsa/201504-04 (vendor-advisory)
- secunia.com/advisories/62672 (Permissions Required, Third Party Advisory, third-party-advisory)
- support.citrix.com/article/CTX201794
- support.citrix.com/article/CTX200288
- www.debian.org/security/2015/dsa-3140 (vendor-advisory, Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2015-02/msg00005.html (vendor-advisory, Third Party Advisory)
- kb.juniper.net/InfoCenter/index
- lists.opensuse.org/opensuse-security-announce/2015-02/msg00010.html (vendor-advisory, Third Party Advisory)
- xenbits.xenproject.org/xsa/advisory-112.html (Patch, Vendor Advisory)