JuniperVULNRICHMENT:CVE-2024-21605CVE-2024-21605 Junos OS: SRX 300 Series: Specific link local traffic causes a control plane overload
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
AI Score
Confidence
High
SSVC
Exploitation
none
Automatable
no
Technical Impact
partial
An Exposure of Resource to Wrong Sphere vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on SRX 300 Series allows an unauthenticated, adjacent attacker to cause a Denial of Service (DoS).
Specific valid link-local traffic is not blocked on ports in STP blocked state but is instead sent to the control plane of the device. This leads to excessive resource consumption and in turn severe impact on all control and management protocols of the device.
This issue affects Juniper Networks Junos OS:
- 21.2 version 21.2R3-S3 and later versions earlier than 21.2R3-S6;
- 22.1 version 22.1R3 and later versions earlier than 22.1R3-S4;
- 22.2 version
22.2R2
and later versions earlier than 22.2R3-S2;
- 22.3 version
22.3R2
and later versions earlier than 22.3R3-S1;
- 22.4 versions earlier than 22.4R2-S2, 22.4R3;
- 23.2 versions earlier than 23.2R1-S1, 23.2R2.
This issue does not affect Juniper Networks Junos OS 21.4R1 and later versions of 21.4.
CNA Affected
[
{
"defaultStatus": "unaffected",
"platforms": [
"SRX 300 Series"
],
"product": "Junos OS",
"vendor": "Juniper Networks",
"versions": [
{
"lessThan": "21.2R3-S6",
"status": "affected",
"version": "21.2R3-S3",
"versionType": "semver"
},
{
"lessThan": "22.1R3-S4",
"status": "affected",
"version": "22.1R3",
"versionType": "semver"
},
{
"lessThan": "22.2R3-S2",
"status": "affected",
"version": "22.2R2",
"versionType": "semver"
},
{
"lessThan": "22.3R3-S1",
"status": "affected",
"version": "22.3R2",
"versionType": "semver"
},
{
"lessThan": "22.4R2-S2, 22.4R3",
"status": "affected",
"version": "22.4",
"versionType": "semver"
},
{
"lessThan": "23.2R1-S1, 23.2R2",
"status": "affected",
"version": "23.2",
"versionType": "semver"
},
{
"lessThan": "21.4*",
"status": "unaffected",
"version": "21.4",
"versionType": "semver"
}
]
}
]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
AI Score
Confidence
High
SSVC
Exploitation
none
Automatable
no
Technical Impact
partial