PT-2016-7423 · Qemu+3 · Qemu+3

Li Qiang · Published 2016-10-05 · Updated 2024-06-15 · CVE-2016-7908

Positive Technologies (AI Summary)

CVSS v3.1

4.4

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions QEMU (affected versions not specified)

Description The issue arises from the mcf fec do tx function in hw/net/mcf fec.c, which fails to properly limit the buffer descriptor count when transmitting packets. This allows local guest OS administrators to cause a denial of service, resulting in an infinite loop and a QEMU process crash. The denial of service can be triggered via vectors involving a buffer descriptor with a length of 0 and crafted values in bd.flags.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

Infinite Loop

Weakness Enumeration

CWE-835

Related Identifiers

ALT-PU-2017-1043

CVE-2016-7908

DLA-1599-1

DLA-652-1

DLA-653-1

OPENSUSE-SU-2016_3103-1

OPENSUSE-SU-2016_3134-1

OPENSUSE-SU-2017_0007-1

OPENSUSE-SU-2017_0008-1

OPENSUSE-SU-2024:11287-1

OPENSUSE-SU-2024:11520-1

SUSE-SU-2016:2879-1

SUSE-SU-2016:2902-1

SUSE-SU-2016:2936-1

SUSE-SU-2016:2988-1

SUSE-SU-2016:3044-1

SUSE-SU-2016:3067-1

SUSE-SU-2016:3083-1

SUSE-SU-2016:3156-1

SUSE-SU-2016:3174-1

SUSE-SU-2016:3273-1

USN-3125-1

Affected Products

Alt Linux

Qemu

Suse

Ubuntu

References · 494

• https://osv.dev/vulnerability/USN-3125-1 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-17963 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-8577 · Security Note
• https://bdu.fstec.ru/vul/2017-01607 · Security Note
• https://osv.dev/vulnerability/openSUSE-SU-2024:11520-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-9103 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-7909 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-6888 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-7908 · Vendor Advisory
• https://security-tracker.debian.org/tracker/DLA-1599-1 · Vendor Advisory
• http://lists.opensuse.org/opensuse-updates/2016-12/msg00140.html · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-8578 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-4037 · Security Note
• https://bdu.fstec.ru/vul/2017-00071 · Security Note
• https://bdu.fstec.ru/vul/2017-00069 · Security Note