Vulnerability Details : CVE-2016-6888
Integer overflow in the net_tx_pkt_init function in hw/net/net_tx_pkt.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (QEMU process crash) via the maximum fragmentation count, which triggers an unchecked multiplication and NULL pointer dereference.
Vulnerability category: OverflowMemory CorruptionDenial of service
Products affected by CVE-2016-6888
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:openstack:6.0:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:openstack:7.0:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:openstack:10:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:openstack:11:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:openstack:9:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:openstack:8:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:virtualization:4.0:*:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:2.7.0:rc0:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:2.7.0:rc1:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:2.7.0:rc2:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:2.7.0:rc3:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2016-6888
0.06%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 25 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2016-6888
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
2.1
|
LOW | AV:L/AC:L/Au:N/C:N/I:N/A:P |
3.9
|
2.9
|
NIST | |
|
4.4
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H |
0.8
|
3.6
|
NIST |
CWE ids for CVE-2016-6888
-
The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.Assigned by: nvd@nist.gov (Primary)
References for CVE-2016-6888
-
https://access.redhat.com/errata/RHSA-2017:2392
RHSA-2017:2392 - Security Advisory - Red Hat Customer PortalThird Party Advisory
-
http://www.openwall.com/lists/oss-security/2016/08/19/6
oss-security - CVE Request: Qemu: net: vmxnet: integer overflow in packet initialisationMailing List;Third Party Advisory
-
https://lists.gnu.org/archive/html/qemu-devel/2016-08/msg03176.html
[Qemu-devel] [PULL 1/2] net: vmxnet: use g_new for pkt initialisationPatch;Third Party Advisory
-
https://access.redhat.com/errata/RHSA-2017:2408
RHSA-2017:2408 - Security Advisory - Red Hat Customer PortalThird Party Advisory
-
http://www.openwall.com/lists/oss-security/2016/08/19/10
oss-security - Re: CVE Request: Qemu: net: vmxnet: integer overflow in packet initialisationMailing List;Third Party Advisory
-
http://www.securityfocus.com/bid/92556
QEMU '/hw/net/net_tx_pkt.c' Integer Overflow VulnerabilityThird Party Advisory;VDB Entry
-
https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html
[SECURITY] [DLA 1599-1] qemu security updateMailing List;Third Party Advisory
-
https://security.gentoo.org/glsa/201609-01
QEMU: Multiple vulnerabilities (GLSA 201609-01) — Gentoo securityThird Party Advisory
-
http://git.qemu.org/?p=qemu.git;a=commit;h=47882fa4975bf0b58dd74474329fdd7154e8f04c
git.qemu.org Git - qemu.git/commitPatch;Vendor Advisory
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