Medium severity · published Dec 10, 2016
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…
4.4
CVSS
0.4%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 34% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
8.0 · source: NVD
OP
Openstack · Redhat
6.0; 7.0; 8; 9; 10; 11 · source: NVD
QE
Qemu · Qemu
through 2.6.2; 2.7.0; 2.7.0; 2.7.0; 2.7.0 · source: NVD
VI
Virtualization · Redhat
4.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2016-6888
CVE.org
https://www.cve.org/CVERecord?id=CVE-2016-6888
git.qemu.org
http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=47882fa4975bf0b58dd74474329fdd7154e8f04c
Mailing List
http://www.openwall.com/lists/oss-security/2016/08/19/10
Mailing List
http://www.openwall.com/lists/oss-security/2016/08/19/6
Third Party Advisory
http://www.securityfocus.com/bid/92556
Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:2392
Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:2408
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