JuniperVULNRICHMENT:CVE-2023-44191CVE-2023-44191 Junos OS: QFX5000 Series and EX4000 Series: Denial of Service (DoS) on a large scale VLAN due to PFE hogging
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
AI Score
Confidence
High
SSVC
Exploitation
none
Automatable
yes
Technical Impact
partial
An Allocation of Resources Without Limits or Throttling vulnerability in Juniper Networks Junos OS allows an unauthenticated, network-based attacker to cause Denial of Service (DoS).
On all Junos OS QFX5000 Series and EX4000 Series platforms, when a high number of VLANs are configured, a specific DHCP packet will cause PFE hogging which will lead to dropping of socket connections.
This issue affects:
Juniper Networks Junos OS on QFX5000 Series and EX4000 Series
- 21.1 versions prior to 21.1R3-S5;
- 21.2 versions prior to 21.2R3-S5;
- 21.3 versions prior to 21.3R3-S5;
- 21.4 versions prior to 21.4R3-S4;
- 22.1 versions prior to 22.1R3-S3;
- 22.2 versions prior to 22.2R3-S1;
- 22.3 versions prior to 22.3R2-S2, 22.3R3;
- 22.4 versions prior to 22.4R2.
This issue does not affect Juniper Networks Junos OS versions prior to 21.1R1
ADP Affected
[
{
"cpes": [
"cpe:2.3:o:juniper_networks:junos_os:*:*:*:*:*:*:*:*"
],
"vendor": "juniper_networks",
"product": "junos_os",
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "21.1r1",
"versionType": "semver"
},
{
"status": "affected",
"version": "21.1",
"lessThan": "21.1r3-s5",
"versionType": "semver"
},
{
"status": "affected",
"version": "21.2",
"lessThan": "21.2r3-s5",
"versionType": "semver"
},
{
"status": "affected",
"version": "21.3",
"lessThan": "21.3r3-s5",
"versionType": "semver"
},
{
"status": "affected",
"version": "21.4",
"lessThan": "21.4r3-s4",
"versionType": "semver"
},
{
"status": "affected",
"version": "22.1",
"lessThan": "ss.1r3-s3",
"versionType": "semver"
},
{
"status": "affected",
"version": "22.2",
"lessThan": "22.2r3-s1",
"versionType": "semver"
},
{
"status": "affected",
"version": "22.3",
"lessThan": "22.3r2-s2",
"versionType": "semver"
},
{
"status": "affected",
"version": "22.4",
"lessThan": "22.4r2",
"versionType": "semver"
}
],
"defaultStatus": "unaffected"
}
]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
AI Score
Confidence
High
SSVC
Exploitation
none
Automatable
yes
Technical Impact
partial