JuniperCVE-2024-39531CVE-2024-39531
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS4
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/SC:N/VI:N/SI:N/VA:H/SA:L
EPSS
Percentile
17.3%
An Improper Handling of Values vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS Evolved on ACX 7000 Series allows a network-based, unauthenticated attacker to cause a Denial-of-Service (DoS).
If a value is configured for DDoS bandwidth or burst parameters for any protocol in
a queue, all protocols which share the same queue will have
their bandwidth or burst value changed to the new value. If, for example, OSPF was configured with a certain bandwidth value, ISIS would also be limited to this value. So inadvertently either the control plane is open for a high level of specific traffic which was supposed to be limited to a lower value, or the limit for a certain protocol is so low that chances to succeed with a volumetric DoS attack are significantly increased.
This issue affects Junos OS Evolved on ACX 7000 Series:
- All versions before 21.4R3-S7-EVO,
- 22.1 versions before 22.1R3-S6-EVO,
- 22.2 versions before 22.2R3-S3-EVO,
- 22.3 versions before 22.3R3-S3-EVO,
- 22.4 versions before 22.4R3-S2-EVO,
- 23.2 versions before 23.2R2-EVO,
- 23.4
versions
before 23.4R1-S1-EVO, 23.4R2-EVO.
CNA Affected
[
{
"defaultStatus": "unaffected",
"platforms": [
"ACX 7000 Series"
],
"product": "Junos OS Evolved",
"vendor": "Juniper Networks",
"versions": [
{
"lessThan": "21.4R3-S7-EVO",
"status": "affected",
"version": "0",
"versionType": "semver"
},
{
"lessThan": "22.1R3-S6-EVO",
"status": "affected",
"version": "22.1",
"versionType": "semver"
},
{
"lessThan": "22.2R3-S3-EVO",
"status": "affected",
"version": "22.2",
"versionType": "semver"
},
{
"lessThan": "22.3R3-S3-EVO",
"status": "affected",
"version": "22.3",
"versionType": "semver"
},
{
"lessThan": "22.4R3-S2-EVO",
"status": "affected",
"version": "22.4",
"versionType": "semver"
},
{
"lessThan": "23.2R2-EVO",
"status": "affected",
"version": "23.2",
"versionType": "semver"
},
{
"lessThan": "23.4R1-S1-EVO, 23.4R2-EVO",
"status": "affected",
"version": "23.4",
"versionType": "semver"
}
]
}
]References
Related
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS4
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/SC:N/VI:N/SI:N/VA:H/SA:L
EPSS
Percentile
17.3%