JuniperCVELIST:CVE-2024-39519CVE-2024-39519 Junos OS Evolved: ACX 7000 Series: Multicast traffic is looped in a multihoming EVPN MPLS scenario
CVSS3
Attack Vector
ADJACENT
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS4
Attack Vector
ADJACENT
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/SC:N/VI:N/SI:N/VA:H/SA:L
EPSS
Percentile
13.0%
An Improper Check for Unusual or Exceptional Conditions vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS Evolved on ACX7000 Series allows an unauthenticated, adjacent attacker to cause a
Denial-of-Service (DoS).
On all ACX 7000 Series platforms running
Junos OS Evolved, and configured with IRBs, if a Customer Edge device (CE) device is dual homed to two Provider Edge devices (PE) a traffic loop will occur when the CE sends multicast packets. This issue can be triggered by IPv4 and IPv6 traffic.
This issue affects Junos OS Evolved:
All versions from 22.2R1-EVO and later versions before 22.4R2-EVO,
This issue does not affect Junos OS Evolved versions before 22.1R1-EVO.
CNA Affected
[
{
"defaultStatus": "unaffected",
"platforms": [
"ACX7000 Series"
],
"product": "Junos OS Evolved",
"vendor": "Juniper Networks",
"versions": [
{
"status": "affected",
"version": "22.1-EVO",
"versionType": "semver"
},
{
"lessThan": "22.1R1-EVO",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"status": "affected",
"version": "22.2-EVO",
"versionType": "custom"
},
{
"status": "affected",
"version": "22.3-EVO",
"versionType": "custom"
},
{
"lessThan": "22.4R2-EVO",
"status": "affected",
"version": "22.4-EVO",
"versionType": "semver"
}
]
}
]References
Related
CVSS3
Attack Vector
ADJACENT
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS4
Attack Vector
ADJACENT
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/SC:N/VI:N/SI:N/VA:H/SA:L
EPSS
Percentile
13.0%