JuniperCVELIST:CVE-2023-44193CVE-2023-44193 Junos OS: MX Series: An FPC crash is observed when CFM is enabled in a VPLS scenario and a specific LDP related command is run
5.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
0.0004 Low
EPSS
Percentile
5.1%
An Improper Release of Memory Before Removing Last Reference vulnerability in Packet Forwarding Engine (PFE) of Juniper Networks Junos OS allows a local, low privileged attacker to cause an FPC crash, leading to Denial of Service (DoS).
On all Junos MX Series with MPC1 - MPC9, LC480, LC2101, MX10003, and MX80, when Connectivity-Fault-Management (CFM) is enabled in a VPLS scenario, and a specific LDP related command is run, an FPC will crash and reboot. Continued execution of this specific LDP command can lead to sustained Denial of Service condition.
This issue affects:
Juniper Networks Junos OS on MX Series:
- All versions prior to 20.4R3-S7;
- 21.1 versions prior to 21.1R3-S5;
- 21.2 versions prior to 21.2R3-S4;
- 21.3 versions prior to 21.3R3-S4;
- 21.4 versions prior to 21.4R3-S3;
- 22.1 versions prior to 22.1R3-S1;
- 22.2 versions prior to 22.2R2-S1, 22.2R3;
- 22.3 versions prior to 22.3R1-S2, 22.3R2.
CNA Affected
[
{
"defaultStatus": "unaffected",
"platforms": [
"MX Series"
],
"product": "Junos OS",
"vendor": "Juniper Networks",
"versions": [
{
"lessThan": "20.4R3-S7",
"status": "affected",
"version": "0",
"versionType": "semver"
},
{
"lessThan": "21.1R3-S5",
"status": "affected",
"version": "21.1",
"versionType": "semver"
},
{
"lessThan": "21.2R3-S4",
"status": "affected",
"version": "21.2",
"versionType": "semver"
},
{
"lessThan": "21.3R3-S4",
"status": "affected",
"version": "21.3",
"versionType": "semver"
},
{
"lessThan": "21.4R3-S3",
"status": "affected",
"version": "21.4",
"versionType": "semver"
},
{
"lessThan": "22.1R3-S1",
"status": "affected",
"version": "22.1",
"versionType": "semver"
},
{
"lessThan": "22.2R2-S1, 22.2R3",
"status": "affected",
"version": "22.2",
"versionType": "semver"
},
{
"lessThan": "22.3R1-S2, 22.3R2",
"status": "affected",
"version": "22.3",
"versionType": "semver"
}
]
}
]References
Related
5.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
0.0004 Low
EPSS
Percentile
5.1%