CVE-2015-4163

Severity

49%

Complexity

39%

Confidentiality

115%

CWE-476: NULL Pointer Dereference

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.

CWE-476: NULL Pointer Dereference

CVSS 2.0 Base Score 4.9. CVSS Attack Vector: local. CVSS Attack Complexity: low. CVSS Vector: (AV:L/AC:L/Au:N/C:N/I:N/A:C).

Overview

Type

Xen

First reported 10 years ago

2015-06-15 15:59:00

Last updated 6 years ago

2018-10-30 16:26:00

Affected Software

Xen 4.2.0

4.2.0

Xen 4.2.1

4.2.1

Xen 4.2.2

4.2.2

Xen 4.2.3

4.2.3

Xen Xen 4.3.0

4.3.0

Xen 4.3.1

4.3.1

Xen 4.3.4

4.3.4

Xen Xen 4.4.0

4.4.0

Xen 4.4.0 release candidate 1

4.4.0

Xen Xen 4.5.0

4.5.0

References

SUSE-SU-2015:1042

SUSE-SU-2015:1045

SUSE-SU-2015:1157

http://support.citrix.com/article/CTX201145

DSA-3286

75141

1032568

http://xenbits.xen.org/xsa/advisory-134.html

Vendor Advisory

GLSA-201604-03

https://support.citrix.com/article/CTX206006

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