CVE-2016-4001: Buffer Overflow
First published: Mon May 23 2016(Updated: )
Buffer overflow in the stellaris_enet_receive function in hw/net/stellaris_enet.c in QEMU, when the Stellaris ethernet controller is configured to accept large packets, allows remote attackers to cause a denial of service (QEMU crash) via a large packet.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| QEMU KVM | <=2.5.1.1 | |
| QEMU KVM | =2.6.0-rc0 | |
| QEMU KVM | =2.6.0-rc1 | |
| Ubuntu | =12.04 | |
| Ubuntu | =14.04 | |
| Ubuntu | =15.10 | |
| Ubuntu | =16.04 | |
| Fedora | =22 | |
| Fedora | =23 | |
| Fedora | =24 | |
| Debian | =8.0 |
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Reference Links
- http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=3a15cc0e1ee7168db0782133d2607a6bfa422d66
- 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/2016/04/11/4
- http://www.openwall.com/lists/oss-security/2016/04/12/6
- http://www.securityfocus.com/bid/85976
- 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/msg01334.html
- https://security.gentoo.org/glsa/201609-01
Frequently Asked Questions
What is the severity of CVE-2016-4001?
CVE-2016-4001 is considered a high severity vulnerability due to its potential to cause a denial of service by crashing QEMU.
How do I fix CVE-2016-4001?
To fix CVE-2016-4001, you should update QEMU to a version later than 2.5.1.1 or to a stable release following 2.6.0-rc1.
Which versions of QEMU are affected by CVE-2016-4001?
CVE-2016-4001 affects QEMU versions up to and including 2.5.1.1 and specific release candidates like 2.6.0-rc0 and 2.6.0-rc1.
What causes the buffer overflow in CVE-2016-4001?
The buffer overflow in CVE-2016-4001 is triggered when the Stellaris ethernet controller in QEMU is configured to accept large packets.
Can CVE-2016-4001 be exploited remotely?
Yes, CVE-2016-4001 can be exploited remotely, allowing attackers to crash QEMU by sending a large packet.
- agent/type
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- source/MITRE
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- agent/author
- agent/references
- agent/weakness
- agent/last-modified-date
- agent/description
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- agent/event
- agent/source
- agent/softwarecombine
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/qemu
- canonical/qemu kvm
- version/qemu kvm/2.5.1.1
- version/qemu kvm/2.6.0-rc0
- version/qemu kvm/2.6.0-rc1
- vendor/canonical
- canonical/ubuntu
- version/ubuntu/12.04
- version/ubuntu/14.04
- version/ubuntu/15.10
- version/ubuntu/16.04
- vendor/fedoraproject
- canonical/fedora
- version/fedora/22
- version/fedora/23
- version/fedora/24
- vendor/debian
- canonical/debian
- version/debian/8.0