VulnerabilityModified

CVE-2017-12136

Race condition in the grant table code in Xen 4.6.x through 4.9.x allows local guest OS administrators to cause a denial of service (free list corruption and host crash) or gain privileges on the host via vectors involving maptrack free list handling.

HIGH 7.8EPSS 0.31%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.31%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

CVSS 3.0: 7.8 HIGHCVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
EPSS: 0.31% probability · 24th percentile
CISA KEV: Not listed
Weakness: CWE-362
Affected: xen/xen · citrix/xenserver · debian/debian linux
Source: cve@mitre.org

References

http://www.debian.org/security/2017/dsa-3969Third Party Advisory
http://www.openwall.com/lists/oss-security/2017/08/15/3Mailing List, Patch, Third Party Advisory
http://www.securityfocus.com/bid/100346Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1039175Third Party Advisory, VDB Entry
http://xenbits.xen.org/xsa/advisory-228.htmlPatch, Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1477651Issue Tracking, Patch, Third Party Advisory
https://security.gentoo.org/glsa/201801-14Third Party Advisory
https://support.citrix.com/article/CTX225941Patch, Third Party Advisory
http://www.debian.org/security/2017/dsa-3969Third Party Advisory
http://www.openwall.com/lists/oss-security/2017/08/15/3Mailing List, Patch, Third Party Advisory
http://www.securityfocus.com/bid/100346Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1039175Third Party Advisory, VDB Entry
http://xenbits.xen.org/xsa/advisory-228.htmlPatch, Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1477651Issue Tracking, Patch, Third Party Advisory
https://security.gentoo.org/glsa/201801-14Third Party Advisory
https://support.citrix.com/article/CTX225941Patch, Third Party Advisory

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