CVE-2019-0048
5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:L/Au:N/C:N/I:P/A:N
5.8 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
5.7 Medium
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
36.1%
On EX4300 Series switches with TCAM optimization enabled, incoming multicast traffic matches an implicit loopback filter rule first, since it has high priority. This rule is meant for reserved multicast addresses 224.0.0.x, but incorrectly matches on 224.x.x.x. Due to this bug, when a firewall filter is applied on the loopback interface, other firewall filters might stop working for multicast traffic. The command ‘show firewall filter’ can be used to confirm whether the filter is working. This issue only affects the EX4300 switch. No other products or platforms are affected by this vulnerability. This issue affects: Juniper Networks Junos OS: 14.1X53 versions prior to 14.1X53-D51, 14.1X53-D115 on EX4300 Series; 17.1 versions prior to 17.1R3 on EX4300 Series; 17.2 versions prior to 17.2R3-S2 on EX4300 Series; 17.3 versions prior to 17.3R3-S3 on EX4300 Series; 17.4 versions prior to 17.4R2-S5, 17.4R3 on EX4300 Series; 18.1 versions prior to 18.1R3-S1 on EX4300 Series; 18.2 versions prior to 18.2R2 on EX4300 Series; 18.3 versions prior to 18.3R2 on EX4300 Series.
Affected configurations
| CPE | Name | Operator | Version |
|---|---|---|---|
| juniper:junos | juniper junos | eq | 14.1x53 |
CNA Affected
[
{
"product": "Junos OS",
"vendor": "Juniper Networks",
"versions": [
{
"status": "affected",
"version": "14.1X53 versions prior to 14.1X53-D51 and 14.1X53-D115 on EX4300 Series"
},
{
"status": "affected",
"version": "17.1 versions prior to 17.1R3 on EX4300 Series"
},
{
"status": "affected",
"version": "17.2 versions prior to 17.2R3-S2 on EX4300 Series"
},
{
"status": "affected",
"version": "17.3 versions prior to 17.3R3-S3 on EX4300 Series"
},
{
"status": "affected",
"version": "17.4 versions prior to 17.4R2-S5 and 17.4R3 on EX4300 Series"
},
{
"status": "affected",
"version": "18.1 versions prior to 18.1R3-S1 on EX4300 Series"
},
{
"status": "affected",
"version": "18.2 versions prior to 18.2R2 on EX4300 Series"
},
{
"status": "affected",
"version": "18.3 versions prior to 18.3R2 on EX4300 Series"
}
]
}
]References
Related
5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:L/Au:N/C:N/I:P/A:N
5.8 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
5.7 Medium
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
36.1%