CVE-2016-4037

MEDIUM

Description

The ehci_advance_state 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 split isochronous transfer descriptor (siTD) list, a related issue to CVE-2015-8558.

References

http://git.qemu.org/?p=qemu.git;a=commit;h=1ae3f2f178087711f9591350abad133525ba93f2

http://lists.fedoraproject.org/pipermail/package-announce/2016-April/183275.html

http://lists.fedoraproject.org/pipermail/package-announce/2016-May/183350.html

http://lists.fedoraproject.org/pipermail/package-announce/2016-May/184209.html

http://www.openwall.com/lists/oss-security/2016/04/18/3

http://www.openwall.com/lists/oss-security/2016/04/18/6

http://www.securityfocus.com/bid/86283

http://www.ubuntu.com/usn/USN-2974-1

https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html

https://lists.gnu.org/archive/html/qemu-devel/2016-04/msg02691.html

https://lists.gnu.org/archive/html/qemu-devel/2016-04/msg02734.html

Details

Source: MITRE

Published: 2016-05-23

Updated: 2018-12-01

Type: CWE-20

Risk Information

CVSS v2.0

Base Score: 4.9

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

Impact Score: 6.9

Exploitability Score: 3.9

Severity: MEDIUM

CVSS v3.0

Base Score: 6

Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H

Impact Score: 4

Exploitability Score: 1.5

Severity: MEDIUM