Lucene search

[email protected]CVE-2024-21600

HistoryJan 12, 2024 - 1:15 a.m.

CVE-2024-21600

2024-01-1201:15:47

CWE-76

[email protected]

web.nvd.nist.gov

cve-2024-21600

juniper networks

junos os

vulnerability

packet forwarding engine

dos

ptx series

mpls

fti tunnel

security advisory

nvd

6.5 Medium

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

0.0004 Low

EPSS

Percentile

12.7%

JSON

An Improper Neutralization of Equivalent Special Elements vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on PTX Series allows a unauthenticated, adjacent attacker to cause a Denial of Service (DoS).

When MPLS packets are meant to be sent to a flexible tunnel interface (FTI) and if the FTI tunnel is down, these will hit the reject NH, due to which the packets get sent to the CPU and cause a host path wedge condition. This will cause the FPC to hang and requires a manual restart to recover.

Please note that this issue specifically affects PTX1000, PTX3000, PTX5000 with FPC3, PTX10002-60C, and PTX10008/16 with LC110x. Other PTX Series devices and Line Cards (LC) are not affected.

The following log message can be seen when the issue occurs:

Cmerror Op Set: Host Loopback: HOST LOOPBACK WEDGE DETECTED IN PATH ID <id> (URI: /fpc/<fpc>/pfe/<pfe>/cm/<cm>/Host_Loopback/<cm>/HOST_LOOPBACK_MAKE_CMERROR_ID[<id>])
This issue affects Juniper Networks Junos OS:

All versions earlier than 20.4R3-S8;
21.1 versions earlier than 21.1R3-S4;
21.2 versions earlier than 21.2R3-S6;
21.3 versions earlier than 21.3R3-S3;
21.4 versions earlier than 21.4R3-S5;
22.1 versions earlier than 22.1R2-S2, 22.1R3;
22.2 versions earlier than 22.2R2-S1, 22.2R3.

Affected configurations

NVD

Node

juniperjunosMatch20.4-

juniperjunosMatch20.4r1

juniperjunosMatch20.4r1-s1

juniperjunosMatch20.4r2

juniperjunosMatch20.4r2-s1

juniperjunosMatch20.4r2-s2

juniperjunosMatch20.4r3

juniperjunosMatch20.4r3-s1

juniperjunosMatch20.4r3-s2

juniperjunosMatch20.4r3-s3

juniperjunosMatch20.4r3-s4

juniperjunosMatch20.4r3-s5

juniperjunosMatch20.4r3-s6

juniperjunosMatch20.4r3-s7

Node

juniperjunosMatch21.1-

juniperjunosMatch21.1r1

juniperjunosMatch21.1r1-s1

juniperjunosMatch21.1r2

juniperjunosMatch21.1r2-s1

juniperjunosMatch21.1r2-s2

juniperjunosMatch21.1r3

juniperjunosMatch21.1r3-s1

juniperjunosMatch21.1r3-s2

juniperjunosMatch21.1r3-s3

Node

juniperjunosMatch21.2-

juniperjunosMatch21.2r1

juniperjunosMatch21.2r1-s1

juniperjunosMatch21.2r1-s2

juniperjunosMatch21.2r2

juniperjunosMatch21.2r2-s1

juniperjunosMatch21.2r2-s2

juniperjunosMatch21.2r3

juniperjunosMatch21.2r3-s1

juniperjunosMatch21.2r3-s2

juniperjunosMatch21.2r3-s3

juniperjunosMatch21.2r3-s4

juniperjunosMatch21.2r3-s5

Node

juniperjunosMatch21.3-

juniperjunosMatch21.3r1

juniperjunosMatch21.3r1-s1

juniperjunosMatch21.3r1-s2

juniperjunosMatch21.3r2

juniperjunosMatch21.3r2-s1

juniperjunosMatch21.3r2-s2

juniperjunosMatch21.3r3

juniperjunosMatch21.3r3-s1

juniperjunosMatch21.3r3-s2

Node

juniperjunosMatch21.4-

juniperjunosMatch21.4r1

juniperjunosMatch21.4r1-s1

juniperjunosMatch21.4r1-s2

juniperjunosMatch21.4r2

juniperjunosMatch21.4r2-s1

juniperjunosMatch21.4r2-s2

juniperjunosMatch21.4r3

juniperjunosMatch21.4r3-s1

juniperjunosMatch21.4r3-s2

juniperjunosMatch21.4r3-s3

juniperjunosMatch21.4r3-s4

Node

juniperjunosMatch22.1-

juniperjunosMatch22.1r1

juniperjunosMatch22.1r1-s1

juniperjunosMatch22.1r1-s2

juniperjunosMatch22.1r2

juniperjunosMatch22.1r2-s1

Node

juniperjunosMatch22.2-

juniperjunosMatch22.2r1

juniperjunosMatch22.2r1-s1

juniperjunosMatch22.2r1-s2

juniperjunosMatch22.2r2

CPENameOperatorVersion
juniper:junosjuniper junoseq20.4

CPE	Name	Operator	Version
juniper:junos	juniper junos	eq	20.4

CNA Affected

[
  {
    "defaultStatus": "unaffected",
    "platforms": [
      "PTX1000",
      "PTX3000",
      "PTX5000 with FPC3",
      "PTX10002-60C",
      "PTX10008/16 with LC110x"
    ],
    "product": "Junos OS",
    "vendor": "Juniper Networks",
    "versions": [
      {
        "lessThan": "20.4R3-S8",
        "status": "affected",
        "version": "0",
        "versionType": "semver"
      },
      {
        "lessThan": "21.1R3-S4",
        "status": "affected",
        "version": "21.1",
        "versionType": "semver"
      },
      {
        "lessThan": "21.2R3-S6",
        "status": "affected",
        "version": "21.2",
        "versionType": "semver"
      },
      {
        "lessThan": "21.3R3-S3",
        "status": "affected",
        "version": "21.3",
        "versionType": "semver"
      },
      {
        "lessThan": "21.4R3-S5",
        "status": "affected",
        "version": "21.4",
        "versionType": "semver"
      },
      {
        "lessThan": "22.1R2-S2, 22.1R3",
        "status": "affected",
        "version": "22.1",
        "versionType": "semver"
      },
      {
        "lessThan": "22.2R2-S1, 22.2R3",
        "status": "affected",
        "version": "22.2",
        "versionType": "semver"
      }
    ]
  }
]

References

supportportal.juniper.net/JSA75741

www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L

6.5 Medium

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

0.0004 Low

EPSS

Percentile

12.7%

JSON

Related for CVE-2024-21600

prion1 cvelist1 nvd1