CVE-2017-10917

critical
New! CVE Severity Now Using CVSS v3

The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Description

Xen through 4.8.x does not validate the port numbers of polled event channel ports, which allows guest OS users to cause a denial of service (NULL pointer dereference and host OS crash) or possibly obtain sensitive information, aka XSA-221.

References

http://www.debian.org/security/2017/dsa-3969

http://www.securityfocus.com/bid/99157

http://www.securitytracker.com/id/1038731

https://security.gentoo.org/glsa/201708-03

https://xenbits.xen.org/xsa/advisory-221.html

Details

Source: MITRE

Published: 2017-07-05

Updated: 2017-11-04

Type: CWE-476

Risk Information

CVSS v2

Base Score: 9.4

Vector: AV:N/AC:L/Au:N/C:C/I:N/A:C

Impact Score: 9.2

Exploitability Score: 10

Severity: HIGH

CVSS v3

Base Score: 9.1

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Impact Score: 5.2

Exploitability Score: 3.9

Severity: CRITICAL

Vulnerable Software

Configuration 1

OR

cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:* versions up to 4.8.1 (inclusive)

Tenable Plugins

View all (12 total)

IDNameProductFamilySeverity
140019OracleVM 3.4 : xen (OVMSA-2020-0039) (Bunker Buster) (Foreshadow) (MDSUM/RIDL) (MFBDS/RIDL/ZombieLoad) (MLPDS/RIDL) (MSBDS/Fallout) (Meltdown) (POODLE) (Spectre)NessusOracleVM Local Security Checks
critical
111992OracleVM 3.4 : xen (OVMSA-2018-0248) (Bunker Buster) (Foreshadow) (Meltdown) (POODLE) (Spectre)NessusOracleVM Local Security Checks
critical
103830OracleVM 3.4 : xen (OVMSA-2017-0153)NessusOracleVM Local Security Checks
critical
103146Debian DSA-3969-1 : xen - security updateNessusDebian Local Security Checks
critical
102835OracleVM 3.4 : xen (OVMSA-2017-0142)NessusOracleVM Local Security Checks
critical
101638Fedora 26 : xen (2017-5c6a9b07a3)NessusFedora Local Security Checks
critical
101350SUSE SLES12 Security Update : xen (SUSE-SU-2017:1812-1)NessusSuSE Local Security Checks
critical
101349openSUSE Security Update : xen (openSUSE-2017-799)NessusSuSE Local Security Checks
critical
101293SUSE SLES12 Security Update : xen (SUSE-SU-2017:1795-1)NessusSuSE Local Security Checks
critical
101205Citrix XenServer Multiple Vulnerabilities (CTX224740)NessusMisc.
critical
101183Fedora 24 : xen (2017-b3bdaf58bc)NessusFedora Local Security Checks
critical
101028Fedora 25 : xen (2017-c3149b5fcb)NessusFedora Local Security Checks
critical