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CVE-2016-1981

Date: December 29, 2016

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.

Severity Score

Related Resources (15)

https://nvd.nist.gov/vuln/detail/CVE-2016-1981
https://security-tracker.debian.org/tracker/CVE-2016-1981
http://www.openwall.com/lists/oss-security/2016/01/22/1
http://www.securityfocus.com/bid/81549
http://www.debian.org/security/2016/dsa-3469
https://security.gentoo.org/glsa/201604-01
http://www.debian.org/security/2016/dsa-3470
http://www.openwall.com/lists/oss-security/2016/01/19/10
https://access.redhat.com/security/cve/CVE-2016-1981
https://bugzilla.redhat.com/show_bug.cgi?id=1298570
http://www.debian.org/security/2016/dsa-3471
http://rhn.redhat.com/errata/RHSA-2016-2585.html
https://lists.gnu.org/archive/html/qemu-devel/2016-01/msg03454.html
https://people.canonical.com/~ubuntu-security/cve/CVE-2016-1981
https://www.mend.io/vulnerability-database/CVE-2016-1981

Severity Score

Weakness Type (CWE)

Loop with Unreachable Exit Condition ('Infinite Loop')

CWE-835

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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