CVE-2016-4002
What it is
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.
At a glance
- Exploitability
- Can be exploited over the network without logging in. High risk of data exposure, data tampering, service disruption.
- Exploit odds
- 6.3% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 6.3% in the next 30 days (EPSS).
- Severity: 9.8 CRITICAL (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 6.3% · EPSS, next 30 days
- Weakness
- CWE-120 · Classic buffer overflow
- Record status
- Modified
Affected
- Qemu ≤ 2.6.2
- Fedoraproject Fedora 22
- Fedoraproject Fedora 23
- Fedoraproject Fedora 24
- Canonical Ubuntu Linux 12.04
- Canonical Ubuntu Linux 14.04
- Canonical Ubuntu Linux 15.10
- Canonical Ubuntu Linux 16.04
Attack profile CVSS 3.1 · 9.8
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2016-4002.md and follow it. Check whether this project is affected by CVE-2016-4002. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- http://www.openwall.com/lists/oss-security/2016/04/11/6
- http://www.openwall.com/lists/oss-security/2016/04/12/7
- https://bugzilla.redhat.com/show_bug.cgi?id=1326082
- https://lists.gnu.org/archive/html/qemu-devel/2016-04/msg01131.html
- http://www.openwall.com/lists/oss-security/2016/04/11/6
- http://www.openwall.com/lists/oss-security/2016/04/12/7
- https://bugzilla.redhat.com/show_bug.cgi?id=1326082
- https://lists.gnu.org/archive/html/qemu-devel/2016-04/msg01131.html
References
- 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/2016/04/11/6
- 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://bugzilla.redhat.com/show_bug.cgi?id=1326082
- https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html
- https://lists.gnu.org/archive/html/qemu-devel/2016-04/msg01131.html
- https://security.gentoo.org/glsa/201609-01
- 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/2016/04/11/6
- 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://bugzilla.redhat.com/show_bug.cgi?id=1326082
- https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html
- https://lists.gnu.org/archive/html/qemu-devel/2016-04/msg01131.html
- https://security.gentoo.org/glsa/201609-01