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cvelistJuniperCVELIST:CVE-2023-44199
HistoryOct 12, 2023 - 11:05 p.m.

CVE-2023-44199 Junos OS: MX Series: In a PTP scenario a prolonged routing protocol churn can trigger an FPC reboot

2023-10-1223:05:52
CWE-754
juniper
www.cve.org
juniper networks
vulnerability
denial of service
pfe
packet forwarding engine
dos
mx series
precision time protocol
fpc reboot
routing protocol churn

7.5 High

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

0.001 Low

EPSS

Percentile

20.7%

An Improper Check for Unusual or Exceptional Conditions vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on MX Series allows a network-based, unauthenticated attacker to cause a Denial of Service (DoS).

On Junos MX Series platforms with Precision Time Protocol (PTP) configured, a prolonged routing protocol churn can lead to an FPC crash and restart.

This issue affects Juniper Networks Junos OS on MX Series:

  • All versions prior to 20.4R3-S4;
  • 21.1 version 21.1R1 and later versions;
  • 21.2 versions prior to 21.2R3-S2;
  • 21.3 versions prior to 21.3R3-S5;
  • 21.4 versions prior to 21.4R3;
  • 22.1 versions prior to 22.1R3;
  • 22.2 versions prior to 22.2R1-S1, 22.2R2.

CNA Affected

[
  {
    "defaultStatus": "unaffected",
    "platforms": [
      "MX Series"
    ],
    "product": "Junos OS",
    "vendor": "Juniper Networks",
    "versions": [
      {
        "lessThan": "20.4R3-S4",
        "status": "affected",
        "version": "0",
        "versionType": "semver"
      },
      {
        "lessThan": "21.1*",
        "status": "affected",
        "version": "21.1R1",
        "versionType": "semver"
      },
      {
        "lessThan": "21.2R3-S2",
        "status": "affected",
        "version": "21.2",
        "versionType": "semver"
      },
      {
        "lessThan": "21.3R3-S5",
        "status": "affected",
        "version": "21.3",
        "versionType": "semver"
      },
      {
        "lessThan": "21.4R3",
        "status": "affected",
        "version": "21.4",
        "versionType": "semver"
      },
      {
        "lessThan": "22.1R3",
        "status": "affected",
        "version": "22.1",
        "versionType": "semver"
      },
      {
        "lessThan": "22.2R1-S1, 22.2R2",
        "status": "affected",
        "version": "22.2",
        "versionType": "semver"
      }
    ]
  }
]

7.5 High

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

0.001 Low

EPSS

Percentile

20.7%

Related for CVELIST:CVE-2023-44199