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CVE-2015-4163

Date: June 15, 2015

GNTTABOP_swap_grant_ref in Xen 4.2 through 4.5 does not check the grant table operation version, which allows local guest domains to cause a denial of service (NULL pointer dereference) via a hypercall without a GNTTABOP_setup_table or GNTTABOP_set_version.

Language: C

Severity Score

Related Resources (13)

https://nvd.nist.gov/vuln/detail/CVE-2015-4163
http://xenbits.xen.org/xsa/advisory-134.html
http://www.debian.org/security/2015/dsa-3286
http://support.citrix.com/article/CTX201145
https://security.gentoo.org/glsa/201604-03
http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00007.html
http://www.securitytracker.com/id/1032568
http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00004.html
http://www.securityfocus.com/bid/75141
https://security-tracker.debian.org/tracker/CVE-2015-4163
http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00030.html
https://support.citrix.com/article/CTX206006
https://www.mend.io/vulnerability-database/CVE-2015-4163

Severity Score

CVSS v3.1

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

CVSS v2

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

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