CVE-2015-7971

LOW

Description

Xen 3.2.x through 4.6.x does not limit the number of printk console messages when logging certain pmu and profiling hypercalls, which allows local guests to cause a denial of service via a sequence of crafted (1) HYPERCALL_xenoprof_op hypercalls, which are not properly handled in the do_xenoprof_op function in common/xenoprof.c, or (2) HYPERVISOR_xenpmu_op hypercalls, which are not properly handled in the do_xenpmu_op function in arch/x86/cpu/vpmu.c.

References

http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171082.html

http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171185.html

http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171249.html

http://lists.opensuse.org/opensuse-updates/2015-11/msg00063.html

http://support.citrix.com/article/CTX202404

http://www.debian.org/security/2015/dsa-3414

http://www.securityfocus.com/bid/77363

http://www.securitytracker.com/id/1034035

http://xenbits.xen.org/xsa/advisory-152.html

https://security.gentoo.org/glsa/201604-03

Details

Source: MITRE

Published: 2015-10-30

Updated: 2018-10-30

Type: CWE-19

Risk Information

CVSS v2.0

Base Score: 2.1

Vector: AV:L/AC:L/Au:N/C:N/I:N/A:P

Impact Score: 2.9

Exploitability Score: 3.9

Severity: LOW