Improper input validation in Xen
CVE-2013-1917
Xen 3.1 through 4.x, when running 64-bit hosts on Intel CPUs, does not clear the NT flag when using an IRET after a SYSENTER instruction, which allows PV guest users to cause a denial of service (hypervisor crash) by triggering a #GP fault, which is not properly handled by another IRET instruction.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v2 metric
CVSS v2 base score 1.9 (Low). Vector: AV:L/AC:M/Au:N/C:N/I:N/A:P. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.004 (28.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 29th percentile — 28.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Xen — versions 3.1.3, 3.1.4, 3.2.0
Weakness classification (CWE)
References
- lists.opensuse.org/opensuse-security-announce/2014-04/msg00000.html (vendor-advisory)
- secunia.com/advisories/55082 (third-party-advisory)
- www.securitytracker.com/id/1028455 (vdb-entry)
- security.gentoo.org/glsa/glsa-201309-24.xml (vendor-advisory)
- lists.opensuse.org/opensuse-updates/2013-06/msg00049.html (vendor-advisory)
- www.openwall.com/lists/oss-security/2013/04/18/8 (mailing-list)
- www.debian.org/security/2012/dsa-2662 (vendor-advisory)
- lists.opensuse.org/opensuse-security-announce/2014-03/msg00021.html (vendor-advisory)
- lists.fedoraproject.org/pipermail/package-announce/2013-May/104537.html (vendor-advisory)
- lists.opensuse.org/opensuse-security-announce/2014-03/msg00015.html (vendor-advisory)