Information disclosure in Xen
CVE-2013-4368
The outs instruction emulation in Xen 3.1.x, 4.2.x, 4.3.x, and earlier, when using FS: or GS: segment override, uses an uninitialized variable as a segment base, which allows local 64-bit PV guests to obtain sensitive information (hypervisor stack content) via unspecified vectors related to stale data in a segment register.
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v2 metric
CVSS v2 base score 1.9 (Low). Vector: AV:L/AC:M/Au:N/C:P/I:N/A:N. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.004 (28.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 28th percentile — 28.1% 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 3.0.2, 3.0.3, 3.0.4
Weakness classification (CWE)
References
- lists.opensuse.org/opensuse-security-announce/2014-04/msg00000.html (vendor-advisory)
- security.gentoo.org/glsa/glsa-201407-03.xml (vendor-advisory)
- www.openwall.com/lists/oss-security/2013/10/10/10 (mailing-list)
- exchange.xforce.ibmcloud.com/vulnerabilities/87799 (vdb-entry)
- rhn.redhat.com/errata/RHSA-2013-1449.html (vendor-advisory)
- lists.opensuse.org/opensuse-security-announce/2014-03/msg00021.html (vendor-advisory)
- www.debian.org/security/2014/dsa-3006 (vendor-advisory)
- lists.opensuse.org/opensuse-security-announce/2014-03/msg00015.html (vendor-advisory)
- lists.opensuse.org/opensuse-updates/2013-11/msg00009.html (vendor-advisory)