VulnerabilityModified
CVE-2017-17566
An issue was discovered in Xen through 4.9.x allowing PV guest OS users to cause a denial of service (host OS crash) or gain host OS privileges in shadow mode by mapping a certain auxiliary page.
HIGH 7.8EPSS 0.36%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.36%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
An issue was discovered in Xen through 4.9.x allowing PV guest OS users to cause a denial of service (host OS crash) or gain host OS privileges in shadow mode by mapping a certain auxiliary page.
- 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
- 0.36% probability · 29th percentile
- CISA KEV
- Not listed
- Affected
- xen/xen
- Source
- cve@mitre.org
References
- http://www.openwall.com/lists/oss-security/2017/12/12/4Mailing List
- http://www.securityfocus.com/bid/102167
- http://www.securitytracker.com/id/1040768
- https://lists.debian.org/debian-lts-announce/2018/01/msg00003.html
- https://lists.debian.org/debian-lts-announce/2018/10/msg00009.html
- https://security.gentoo.org/glsa/201801-14
- https://support.citrix.com/article/CTX232096
- https://www.debian.org/security/2018/dsa-4112
- https://xenbits.xen.org/xsa/advisory-248.htmlMitigation, Patch, Vendor Advisory
- http://www.openwall.com/lists/oss-security/2017/12/12/4Mailing List
- http://www.securityfocus.com/bid/102167
- http://www.securitytracker.com/id/1040768
- https://lists.debian.org/debian-lts-announce/2018/01/msg00003.html
- https://lists.debian.org/debian-lts-announce/2018/10/msg00009.html
- https://security.gentoo.org/glsa/201801-14
- https://support.citrix.com/article/CTX232096
- https://www.debian.org/security/2018/dsa-4112
- https://xenbits.xen.org/xsa/advisory-248.htmlMitigation, Patch, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.