CVE-2016-1981

LOW

Description

QEMU (aka Quick Emulator) built with the e1000 NIC emulation support is vulnerable to an infinite loop issue. It could occur while processing data via transmit or receive descriptors, provided the initial receive/transmit descriptor head (TDH/RDH) is set outside the allocated descriptor buffer. A privileged user inside guest could use this flaw to crash the QEMU instance resulting in DoS.

References

http://rhn.redhat.com/errata/RHSA-2016-2585.html

http://www.debian.org/security/2016/dsa-3469

http://www.debian.org/security/2016/dsa-3470

http://www.debian.org/security/2016/dsa-3471

http://www.openwall.com/lists/oss-security/2016/01/19/10

http://www.openwall.com/lists/oss-security/2016/01/22/1

http://www.securityfocus.com/bid/81549

https://bugzilla.redhat.com/show_bug.cgi?id=1298570

https://lists.gnu.org/archive/html/qemu-devel/2016-01/msg03454.html

https://security.gentoo.org/glsa/201604-01

Details

Source: MITRE

Published: 2016-12-29

Updated: 2018-01-05

Type: CWE-399

Risk Information

CVSS v2.0

Base Score: 2.1

Vector: (AV:L/AC:L/Au:N/C:N/I:N/A:P)

Impact Score: 2.9

Exploitability Score: 3.9

Severity: LOW

CVSS v3.0

Base Score: 5.5

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Impact Score: 3.6

Exploitability Score: 1.8

Severity: MEDIUM