CVE-2017-7228

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.

CVSS v3.0 8.2 HIGH
CVSS v2.0 7.2 HIGH

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CVSS v3.0 : HIGH

V3 Legend

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

Exploitability : 1.5 / Impact : 6.0

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

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CVSS v2.0 : HIGH

V2 Legend

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

Exploitability : 3.9 / Impact : 10.0

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
http://xenbits.xen.org/xsa/advisory-212.html	Patch Vendor Advisory
http://openwall.com/lists/oss-security/2017/04/04/3	Mailing List Third Party Advisory
http://www.securityfocus.com/bid/97375	Third Party Advisory VDB Entry
https://googleprojectzero.blogspot.com/2017/04/pandavirtualization-exploiting-xen.html	Technical Description Third Party Advisory
https://github.com/QubesOS/qubes-secpack/blob/master/QSBs/qsb-029-2017.txt
http://www.securitytracker.com/id/1038223
https://www.exploit-db.com/exploits/41870/
http://www.debian.org/security/2017/dsa-3847

Configurations

Configuration 1 (hide)

cpe:2.3:o:xen:xen:-:*:*:*:*:*:*:*

Information

Published : 2017-04-04 07:59

Updated : 2019-10-02 17:03

NVD link : CVE-2017-7228

Mitre link : CVE-2017-7228

JSON object : View

CWE

CWE-129

Improper Validation of Array Index

Products Affected

xen

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