CVE-2015-8558

Name: CVE-2015-8558
Creator: NVD / NIST
Published: 2016-05-23T19:59:00.307+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.48%

Last modified Jun 17, 2026

CVE-2015-8558 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. The ehci_process_itd function in hw/usb/hcd-ehci.c in QEMU allows local guest OS administrators to cause a denial of service (infinite loop and CPU consumption) via a circular isochronous transfer descriptor (iTD) list.. EPSS estimates a 0.48% chance of exploitation in the next 30 days.

Description

The ehci_process_itd function in hw/usb/hcd-ehci.c in QEMU allows local guest OS administrators to cause a denial of service (infinite loop and CPU consumption) via a circular isochronous transfer descriptor (iTD) list.

Metrics

CVSS 3.1

5.5/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

0.48%

37.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-835

Affected Software

Vendor	Product	Versions
Qemu	Qemu	<= 2.5.1.1
Debian	Debian Linux	7.0
Debian	Debian Linux	8.0

References

http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=156a2e4dbffa85997636a7a39ef12da6f1b40254
http://www.debian.org/security/2016/dsa-3469Third Party Advisory
http://www.debian.org/security/2016/dsa-3470Third Party Advisory
http://www.debian.org/security/2016/dsa-3471Third Party Advisory
http://www.openwall.com/lists/oss-security/2015/12/14/16Mailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2015/12/14/9Mailing List, Third Party Advisory
http://www.securityfocus.com/bid/80694Third Party Advisory, VDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=1277983Issue Tracking, Third Party Advisory
https://lists.gnu.org/archive/html/qemu-devel/2015-12/msg02124.htmlMailing List, Patch, Third Party Advisory
https://security.gentoo.org/glsa/201602-01Third Party Advisory
http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=156a2e4dbffa85997636a7a39ef12da6f1b40254
http://www.debian.org/security/2016/dsa-3469Third Party Advisory
http://www.debian.org/security/2016/dsa-3470Third Party Advisory
http://www.debian.org/security/2016/dsa-3471Third Party Advisory
http://www.openwall.com/lists/oss-security/2015/12/14/16Mailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2015/12/14/9Mailing List, Third Party Advisory
http://www.securityfocus.com/bid/80694Third Party Advisory, VDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=1277983Issue Tracking, Third Party Advisory
https://lists.gnu.org/archive/html/qemu-devel/2015-12/msg02124.htmlMailing List, Patch, Third Party Advisory
https://security.gentoo.org/glsa/201602-01Third Party Advisory

Timeline

Published: May 23, 2016
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2015-8558?

How severe is CVE-2015-8558?

CVE-2015-8558 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.48% probability of exploitation in the next 30 days.

How do I fix CVE-2015-8558?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2015-8558?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST