9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
0.25 Low
EPSS
Percentile
96.6%
Open vSwitch reports:
Multiple versions of Open vSwitch are vulnerable to remote buffer
overflow attacks, in which crafted MPLS packets could overflow the
buffer reserved for MPLS labels in an OVS internal data structure.
The MPLS packets that trigger the vulnerability and the potential for
exploitation vary depending on version:
Open vSwitch 2.1.x and earlier are not vulnerable.
In Open vSwitch 2.2.x and 2.3.x, the MPLS buffer overflow can be
exploited for arbitrary remote code execution.
In Open vSwitch 2.4.x, the MPLS buffer overflow does not obviously lead
to a remote code execution exploit, but testing shows that it can allow a
remote denial of service. See the mitigation section for details.
Open vSwitch 2.5.x is not vulnerable.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
FreeBSD | any | noarch | openvswitch | = 2.2.0 | UNKNOWN |
FreeBSD | any | noarch | openvswitch | < 2.3.3 | UNKNOWN |
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
0.25 Low
EPSS
Percentile
96.6%