CVE-2016-4037
First published: Mon May 23 2016(Updated: )
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.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Fedora | =22 | |
| Fedora | =23 | |
| Fedora | =24 | |
| Ubuntu | =12.04 | |
| Ubuntu | =14.04 | |
| Ubuntu | =15.10 | |
| Ubuntu | =16.04 | |
| QEMU | <=2.5.1 | |
| QEMU | =2.6.0-rc0 | |
| QEMU | =2.6.0-rc1 | |
| QEMU | =2.6.0-rc2 | |
| Debian | =8.0 |
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Reference Links
- http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=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
Frequently Asked Questions
What is the severity of CVE-2016-4037?
CVE-2016-4037 has a high severity rating due to its potential to cause a denial of service.
How do I fix CVE-2016-4037?
To mitigate CVE-2016-4037, users should update QEMU to version 2.6.0 or later.
What systems are affected by CVE-2016-4037?
CVE-2016-4037 affects various versions of Fedora, Ubuntu, and Debian systems running specific versions of QEMU.
What type of vulnerability is CVE-2016-4037?
CVE-2016-4037 is classified as a denial of service vulnerability due to the infinite loop caused by a circular split isochronous transfer descriptor.
Who can exploit CVE-2016-4037?
Local guest OS administrators are the only ones able to exploit CVE-2016-4037 to cause a denial of service.
- agent/type
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- agent/softwarecombine
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- agent/software-canonical-lookup-request
- vendor/fedoraproject
- canonical/fedora
- version/fedora/22
- version/fedora/23
- version/fedora/24
- vendor/canonical
- canonical/ubuntu
- version/ubuntu/12.04
- version/ubuntu/14.04
- version/ubuntu/15.10
- version/ubuntu/16.04
- vendor/qemu
- canonical/qemu
- version/qemu/2.5.1
- version/qemu/2.6.0-rc0
- version/qemu/2.6.0-rc1
- version/qemu/2.6.0-rc2
- vendor/debian
- canonical/debian
- version/debian/8.0