CVE-2015-4163

Severity: medium (CVSS 4.9 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2015-06-15 · updated 2026-06-17

Description

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.

Affected products

xen: 4.2.0, 4.2.1, 4.2.2, 4.2.3, 4.3.0, 4.3.1 (+5)

References

http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00004.html
http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00007.html
http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00030.html
http://support.citrix.com/article/CTX201145
http://www.debian.org/security/2015/dsa-3286
http://www.securityfocus.com/bid/75141
http://www.securitytracker.com/id/1032568
http://xenbits.xen.org/xsa/advisory-134.html
https://security.gentoo.org/glsa/201604-03
https://support.citrix.com/article/CTX206006
http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00004.html
http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00007.html

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