CVE-2016-4002: Buffer Overflow
First published: Mon Apr 11 2016(Updated: )
Buffer overflow in the mipsnet_receive function in hw/net/mipsnet.c in QEMU, when the guest NIC is configured to accept large packets, allows remote attackers to cause a denial of service (memory corruption and QEMU crash) or possibly execute arbitrary code via a packet larger than 1514 bytes.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| QEMU | <=2.6.2 | |
| Fedora | =22 | |
| Fedora | =23 | |
| Fedora | =24 | |
| Ubuntu | =12.04 | |
| Ubuntu | =14.04 | |
| Ubuntu | =15.10 | |
| Ubuntu | =16.04 | |
| Debian | =8.0 |
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Reference Links
- https://lists.gnu.org/archive/html/qemu-devel/2016-04/msg01131.html
- http://www.openwall.com/lists/oss-security/2016/04/11/6
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1326084
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1326083
- https://access.redhat.com/support/policy/updates/errata/
- http://seclists.org/oss-sec/2016/q2/62
- https://bugzilla.redhat.com/show_bug.cgi?id=1326082
- 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/2016/04/12/7
- http://www.securityfocus.com/bid/85992
- http://www.ubuntu.com/usn/USN-2974-1
- https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html
- https://security.gentoo.org/glsa/201609-01
Frequently Asked Questions
What is the severity of CVE-2016-4002?
CVE-2016-4002 has a severity that can lead to denial of service or potential remote code execution.
How do I fix CVE-2016-4002?
To fix CVE-2016-4002, upgrade QEMU to a version that includes the patch addressing this buffer overflow vulnerability.
Which software versions are affected by CVE-2016-4002?
CVE-2016-4002 affects multiple versions of QEMU up to and including 2.6.2 as well as specific versions of Fedora, Ubuntu, and Debian.
What types of attacks can be executed using CVE-2016-4002?
CVE-2016-4002 allows remote attackers to cause memory corruption and potentially execute arbitrary code via oversized packets.
Is CVE-2016-4002 a local or remote vulnerability?
CVE-2016-4002 is considered a remote vulnerability because it can be exploited over a network by attackers.
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