6.2med
CVE-2016-6259
Xen 4.5.x through 4.7.x do not implement Supervisor Mode Access Prevention (SMAP) whitelisting in 32-bit exception and event delivery, whic…
Published 10 y ago · modified 4 mo ago · JSON
CVSS
6.2
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
0.6%
percentile 51%
Public exploits
0
none known
Summary
Xen 4.5.x through 4.7.x do not implement Supervisor Mode Access Prevention (SMAP) whitelisting in 32-bit exception and event delivery, which allows local 32-bit PV guest OS kernels to cause a denial of service (hypervisor and VM crash) by triggering a safety check.
Exploit prediction (EPSS)
0.64% probability of exploitation in the next 30 days, higher than 51% of all scored CVEs.
CVSS scores
| Assigned by | Version | Score | Vector |
|---|---|---|---|
| NVD | 3.0 | 6.2 | CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVD | 2.0 | 4.9 | AV:L/AC:L/Au:N/C:N/I:N/A:C |
Classification
- Weakness
- CWE-20 Improper Input Validation
References
- securityfocus.com /bid/92130 · vdb-entry, x_refsource_BID, x_transferred
- support.citrix.com /article/CTX214954 · x_refsource_CONFIRM, x_transferred
- securitytracker.com /id/1036447 · vdb-entry, x_refsource_SECTRACK, x_transferred
- xenbits.xen.org /xsa/xsa183-unstable.patch · x_refsource_CONFIRM, x_transferred
- xenbits.xen.org /xsa/advisory-183.html · x_refsource_CONFIRM, x_transferred
- xenbits.xen.org /xsa/xsa183-4.6.patch · x_refsource_CONFIRM, x_transferred
Sources
- CVE List: CVE-2016-6259
- NVD: CVE-2016-6259
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