Ubuntu.comUB:CVE-2018-17204CVE-2018-17204
4.3 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
4 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:S/C:N/I:N/A:P
0.003 Low
EPSS
Percentile
68.4%
An issue was discovered in Open vSwitch (OvS) 2.7.x through 2.7.6,
affecting parse_group_prop_ntr_selection_method in lib/ofp-util.c. When
decoding a group mod, it validates the group type and command after the
whole group mod has been decoded. The OF1.5 decoder, however, tries to use
the type and command earlier, when it might still be invalid. This causes
an assertion failure (via OVS_NOT_REACHED). ovs-vswitchd does not enable
support for OpenFlow 1.5 by default.
Notes
| Author | Note |
|---|---|
| mdeslaur | openflow 1.5 not enabled by default |
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| ubuntu | 18.04 | noarch | openvswitch | < 2.9.2-0ubuntu0.18.04.3 | UNKNOWN |
| ubuntu | 16.04 | noarch | openvswitch | < 2.5.5-0ubuntu0.16.04.2 | UNKNOWN |
Related
4.3 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
4 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:S/C:N/I:N/A:P
0.003 Low
EPSS
Percentile
68.4%