CVE-2016-7908

MEDIUM
4.4
CVSS Score
Published: October 5, 2016 at 04:00 PM UTC
Updated: June 17, 2026 at 12:53 AM UTC
2 products affected across 2 vendorsDebian LinuxQEMU

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Severity
MEDIUM4.4
Exploit prediction
EPSS 0.4%

Description

The mcf_fec_do_tx function in hw/net/mcf_fec.c in QEMU (aka Quick Emulator) does not properly limit the buffer descriptor count when transmitting packets, which allows local guest OS administrators to cause a denial of service (infinite loop and QEMU process crash) via vectors involving a buffer descriptor with a length of 0 and crafted values in bd.flags.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (8)

Vendor Advisoryx_refsource_SUSEMailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.html
Mailing Listx_refsource_MLISTThird Party Advisory
http://www.openwall.com/lists/oss-security/2016/10/03/2
Mailing Listx_refsource_MLISTThird Party Advisory
http://www.openwall.com/lists/oss-security/2016/10/03/5
VDB Entryx_refsource_BIDThird Party Advisory
http://www.securityfocus.com/bid/93273
Mailing Listx_refsource_MLISTThird Party Advisory
https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html
Mailing Listx_refsource_MLISTPatchVendor Advisory
https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg05557.html
Vendor Advisoryx_refsource_GENTOOThird Party Advisory
https://security.gentoo.org/glsa/201611-11

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-835

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