What is CVE-2016-4002?

CVE-2016-4002 is a critical-severity vulnerability in Qemu, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 9.8/10. Published 2016-04-26.

How severe is CVE-2016-4002?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2016-4002 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Qemu

CVE-2016-4002

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.

Vulnerability class: Buffer Overflow

EPSS: 0.063 (92.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Qemu
Canonical Ubuntu_linux — versions 12.04, 14.04, 15.10
Debian Debian_linux — versions 8.0
Fedoraproject Fedora — versions 22, 23, 24
N/a — versions n/a

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

Public proof-of-concept exploits

abazhaniuk/Publications

References

secalert@redhat.com (x_refsource_CONFIRM, Patch, Third Party Advisory, Issue Tracking)
secalert@redhat.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
secalert@redhat.com (vendor-advisory, x_refsource_FEDORA, Third Party Advisory)
secalert@redhat.com (vendor-advisory, Third Party Advisory, x_refsource_GENTOO)
secalert@redhat.com (mailing-list, x_refsource_MLIST, Patch, Mailing List, Third Party Advisory)
secalert@redhat.com (vendor-advisory, x_refsource_FEDORA, Third Party Advisory)
secalert@redhat.com (vendor-advisory, x_refsource_FEDORA, Third Party Advisory)
secalert@redhat.com (x_refsource_UBUNTU, vendor-advisory, Third Party Advisory)
secalert@redhat.com (mailing-list, x_refsource_MLIST, Patch, Mailing List, Third Party Advisory)
secalert@redhat.com (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2016-4002?: CVE-2016-4002 is a critical-severity vulnerability in Qemu, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 9.8/10. Published 2016-04-26.
How severe is CVE-2016-4002?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2016-4002 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.