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CVE-2016-9380

Date: January 23, 2017

The pygrub boot loader emulator in Xen, when nul-delimited output format is requested, allows local pygrub-using guest OS administrators to read or delete arbitrary files on the host via NUL bytes in the bootloader configuration file.

Language: C

Severity Score

Related Resources (9)

https://nvd.nist.gov/vuln/detail/CVE-2016-9380
http://www.securitytracker.com/id/1037347
https://support.citrix.com/article/CTX218775
http://xenbits.xen.org/xsa/advisory-198.html
https://security.gentoo.org/glsa/201612-56
http://xenbits.xen.org/xsa/xsa198.patch
http://www.securityfocus.com/bid/94473
https://access.redhat.com/security/cve/CVE-2016-9380
https://www.mend.io/vulnerability-database/CVE-2016-9380

Severity Score

Weakness Type (CWE)

Input Validation

CWE-20

CVSS v3.1

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

CVSS v2

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

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