CVE-2016-1570

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

The PV superpage functionality in arch/x86/mm.c in Xen 3.4.0, 3.4.1, and 4.1.x through 4.6.x allows local PV guests to obtain sensitive information, cause a denial of service, gain privileges, or have unspecified other impact via a crafted page identifier (MFN) to the (1) MMUEXT_MARK_SUPER or (2) MMUEXT_UNMARK_SUPER sub-op in the HYPERVISOR_mmuext_op hypercall or (3) unknown vectors related to page table updates.

References

http://www.debian.org/security/2016/dsa-3519

http://www.securitytracker.com/id/1034744

http://xenbits.xen.org/xsa/advisory-167.html

Details

Source: MITRE

Published: 2016-01-22

Updated: 2018-10-30

Type: CWE-20

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: 8.5

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

Impact Score: 6

Exploitability Score: 1.8

Severity: HIGH

Tenable Plugins

View all (17 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
93177SUSE SLES11 Security Update : xen (SUSE-SU-2016:1745-1)NessusSuSE Local Security Checks
critical
91756OracleVM 3.2 : xen (OVMSA-2016-0081)NessusOracleVM Local Security Checks
high
91249SUSE SLED12 / SLES12 Security Update : xen (SUSE-SU-2016:1318-1)NessusSuSE Local Security Checks
critical
91198Debian DLA-479-1 : xen security updateNessusDebian Local Security Checks
high
90759SUSE SLES11 Security Update : xen (SUSE-SU-2016:1154-1)NessusSuSE Local Security Checks
critical
90478openSUSE Security Update : xen (openSUSE-2016-439)NessusSuSE Local Security Checks
critical
90396SUSE SLED11 / SLES11 Security Update : xen (SUSE-SU-2016:0955-1)NessusSuSE Local Security Checks
critical
90260openSUSE Security Update : xen (openSUSE-2016-413)NessusSuSE Local Security Checks
critical
90186SUSE SLED12 / SLES12 Security Update : xen (SUSE-SU-2016:0873-1)NessusSuSE Local Security Checks
critical
90030Debian DSA-3519-1 : xen - security updateNessusDebian Local Security Checks
high
89624Fedora 22 : xen-4.5.2-7.fc22 (2016-e1784417af)NessusFedora Local Security Checks
high
89503Fedora 23 : xen-4.5.2-7.fc23 (2016-2c15b72b01)NessusFedora Local Security Checks
high
89011FreeBSD : xen-kernel -- PV superpage functionality missing sanity checks (7ed7c36f-ddaf-11e5-b2bd-002590263bf5)NessusFreeBSD Local Security Checks
high
88171OracleVM 3.2 : xen (OVMSA-2016-0008)NessusOracleVM Local Security Checks
high
88170OracleVM 3.3 : xen (OVMSA-2016-0007)NessusOracleVM Local Security Checks
high