CVE-2017-5973

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2017-03-27 · updated 2026-06-17
Weakness: CWE-835

Description

The xhci_kick_epctx function in hw/usb/hcd-xhci.c in QEMU (aka Quick Emulator) allows local guest OS privileged users to cause a denial of service (infinite loop and QEMU process crash) via vectors related to control transfer descriptor sequence.

Affected products

Debian Linux: 8.0
QEMU: through 2.8.1.1
OpenStack: 6.0, 7.0, 8, 9, 10, 11
RedHat Virtualization: 4.0

References

http://git.qemu-project.org/?p=qemu.git%3Ba=commit%3Bh=f89b60f6e5fee3923bedf80e82b4e5efc1bb156b
http://www.openwall.com/lists/oss-security/2017/02/13/11
http://www.securityfocus.com/bid/96220
https://access.redhat.com/errata/RHSA-2017:2392
https://access.redhat.com/errata/RHSA-2017:2408
https://bugzilla.redhat.com/show_bug.cgi?id=1421626
https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html
https://lists.gnu.org/archive/html/qemu-devel/2017-02/msg01101.html
https://security.gentoo.org/glsa/201704-01
http://git.qemu-project.org/?p=qemu.git%3Ba=commit%3Bh=f89b60f6e5fee3923bedf80e82b4e5efc1bb156b
http://www.openwall.com/lists/oss-security/2017/02/13/11
http://www.securityfocus.com/bid/96220

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