VulnerabilityModified

CVE-2016-7154

Use-after-free vulnerability in the FIFO event channel code in Xen 4.4.x allows local guest OS administrators to cause a denial of service (host crash) and possibly execute arbitrary code or obtain sensitive information via an invalid guest frame number.

MEDIUM 6.7EPSS 0.50%

Does this matter?

Lower severity and a low EPSS score (0.50%). Track it; it rarely justifies an emergency change on its own.

Description

CVSS 3.0: 6.7 MEDIUMCVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
EPSS: 0.50% probability · 41th percentile
CISA KEV: Not listed
Weakness: CWE-416
Affected: xen/xen
Source: cve@mitre.org

References

http://support.citrix.com/article/CTX216071Third Party Advisory
http://www.c7zero.info/stuff/csw2017_ExploringYourSystemDeeper_updated.pdf
http://www.debian.org/security/2016/dsa-3663
http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
http://www.securityfocus.com/bid/92863Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1036754Third Party Advisory, VDB Entry
http://xenbits.xen.org/xsa/advisory-188.htmlPatch, Vendor Advisory
http://xenbits.xen.org/xsa/xsa188.patchPatch
http://support.citrix.com/article/CTX216071Third Party Advisory
http://www.c7zero.info/stuff/csw2017_ExploringYourSystemDeeper_updated.pdf
http://www.debian.org/security/2016/dsa-3663
http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
http://www.securityfocus.com/bid/92863Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1036754Third Party Advisory, VDB Entry
http://xenbits.xen.org/xsa/advisory-188.htmlPatch, Vendor Advisory
http://xenbits.xen.org/xsa/xsa188.patchPatch

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.