CVE-2017-17566

HIGH
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

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.

References

http://www.openwall.com/lists/oss-security/2017/12/12/4

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.html

Details

Source: MITRE

Published: 2017-12-12

Updated: 2019-10-03

Risk Information

CVSS v2

Base Score: 6.9

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

Impact Score: 10

Exploitability Score: 3.4

Severity: MEDIUM

CVSS v3

Base Score: 7.8

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

Impact Score: 6

Exploitability Score: 1.1

Severity: HIGH

Vulnerable Software

Configuration 1

OR

cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:* versions up to 4.9.1 (inclusive)

Tenable Plugins

View all (22 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
118215Debian DLA-1549-1 : xen security updateNessusDebian Local Security Checks
critical
111992OracleVM 3.4 : xen (OVMSA-2018-0248) (Bunker Buster) (Foreshadow) (Meltdown) (POODLE) (Spectre)NessusOracleVM Local Security Checks
critical
110305OracleVM 3.2 : xen (OVMSA-2018-0225)NessusOracleVM Local Security Checks
high
110110OracleVM 3.3 : xen (OVMSA-2018-0224) (Meltdown) (Spectre)NessusOracleVM Local Security Checks
high
109989OracleVM 3.4 : xen (OVMSA-2018-0221)NessusOracleVM Local Security Checks
high
109987OracleVM 3.4 : xen (OVMSA-2018-0218) (Meltdown) (Spectre)NessusOracleVM Local Security Checks
high
108886Citrix XenServer Multiple Vulnerabilities (CTX232096)NessusMisc.
high
108369SUSE SLES11 Security Update : xen (SUSE-SU-2018:0678-1) (Meltdown) (Spectre)NessusSuSE Local Security Checks
high
107254SUSE SLES11 Security Update : xen (SUSE-SU-2018:0638-1) (Meltdown) (Spectre)NessusSuSE Local Security Checks
high
107144SUSE SLES12 Security Update : xen (SUSE-SU-2018:0609-1) (Meltdown) (Spectre)NessusSuSE Local Security Checks
high
107140SUSE SLES12 Security Update : xen (SUSE-SU-2018:0601-1) (Meltdown) (Spectre)NessusSuSE Local Security Checks
high
106901SUSE SLED12 / SLES12 Security Update : xen (SUSE-SU-2018:0472-1) (Meltdown) (Spectre)NessusSuSE Local Security Checks
high
106864openSUSE Security Update : xen (openSUSE-2018-169) (Meltdown) (Spectre)NessusSuSE Local Security Checks
high
106834SUSE SLED12 / SLES12 Security Update : xen (SUSE-SU-2018:0438-1) (Meltdown) (Spectre)NessusSuSE Local Security Checks
high
106820Debian DSA-4112-1 : xen - security updateNessusDebian Local Security Checks
high
106038GLSA-201801-14 : Xen: Multiple vulnerabilitiesNessusGentoo Local Security Checks
high
105882Fedora 27 : xen (2017-5945560816)NessusFedora Local Security Checks
high
105621Debian DLA-1230-1 : xen security updateNessusDebian Local Security Checks
high
105617Citrix XenServer Multiple Vulnerabilities (CTX231390) (Meltdown)(Spectre)NessusMisc.
high
105511Fedora 26 : xen (2017-16a414b3c5)NessusFedora Local Security Checks
high
105490Xen PV Guests Internally Used Pages Access Handling Guest-to-Host Privilege Escalation (XSA-248)NessusMisc.
high