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CVE-2017-7228

Date: April 4, 2017

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.

Language: C

Severity Score

Related Resources (11)

https://github.com/QubesOS/qubes-secpack/blob/master/QSBs/qsb-029-2017.txt
http://www.securitytracker.com/id/1038223
http://openwall.com/lists/oss-security/2017/04/04/3
http://www.debian.org/security/2017/dsa-3847
https://googleprojectzero.blogspot.com/2017/04/pandavirtualization-exploiting-xen.html
http://xenbits.xen.org/xsa/advisory-212.html
https://access.redhat.com/security/cve/CVE-2017-7228
http://www.securityfocus.com/bid/97375
https://www.exploit-db.com/exploits/41870/
https://nvd.nist.gov/vuln/detail/CVE-2017-7228
https://www.mend.io/vulnerability-database/CVE-2017-7228

Severity Score

Weakness Type (CWE)

Improper Validation of Array Index

CWE-129

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): HIGH
User Interaction (UI): NONE
Scope (S): CHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): COMPLETE
Integrity (I): COMPLETE
Availability (A): COMPLETE
Additional information:

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