Vulnerability Name:

CCN-116084

Published:2016-08-09
Updated:2016-08-09
Summary:QEMU is vulnerable to a denial of service, caused by an error in the Vmxnet3 Device Emulator. A local attacker as a guest system administrative user could exploit this vulnerability to trigger packet fragmentation bug and cause the host system to enter an infinite loop and crash.
CVSS v3 Severity:7.1 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H)
6.2 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Changed
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
CVSS v2 Severity:4.9 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:N/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
Vulnerability Consequences:Denial of Service
References:Source: CCN
Type: SECTRACK ID: 1036613
QEMU Packet Fragmentation Bug in Vmxnet3 Device Emulator Lets Local Users on a Guest System Cause Denial of Service Conditions on the Host System

Source: XF
Type: UNKNOWN
qemu-vmxnet3-packetfrag-dos(116084)

Source: CCN
Type: qemu-devel Web site
[Qemu-devel] [PULL 1/3] net: check fragment length during fragmentation

Vulnerable Configuration:Configuration CCN 1:
  • cpe:/a:fabrice_bellard:qemu:0.8.2:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    fabrice_bellard qemu 0.8.2