CVE-2017-7228

HIGH

Description

An issue (known as XSA-212) was discovered in Xen, with fixes available for 4.8.x, 4.7.x, 4.6.x, 4.5.x, and 4.4.x. The earlier XSA-29 fix introduced an insufficient check on XENMEM_exchange input, allowing the caller to drive hypervisor memory accesses outside of the guest provided input/output arrays.

References

http://openwall.com/lists/oss-security/2017/04/04/3

http://www.debian.org/security/2017/dsa-3847

http://www.securityfocus.com/bid/97375

http://www.securitytracker.com/id/1038223

http://xenbits.xen.org/xsa/advisory-212.html

https://github.com/QubesOS/qubes-secpack/blob/master/QSBs/qsb-029-2017.txt

https://googleprojectzero.blogspot.com/2017/04/pandavirtualization-exploiting-xen.html

https://www.exploit-db.com/exploits/41870/

Details

Source: MITRE

Published: 2017-04-04

Updated: 2019-10-03

Type: CWE-129

Risk Information

CVSS v2.0

Base Score: 7.2

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

Impact Score: 10

Exploitability Score: 3.9

Severity: HIGH

CVSS v3.0

Base Score: 8.2

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

Impact Score: 6

Exploitability Score: 1.5

Severity: HIGH