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JuniperCVE-2021-0236

HistoryApr 22, 2021 - 8:15 p.m.

CVE-2021-0236

2021-04-2220:15:08

CWE-754

juniper

web.nvd.nist.gov

cve-2021-0236

information security

juniper networks

junos os

bgp

dos

nvd

vulnerability

CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:N/AC:L/Au:S/C:N/I:N/A:C

CVSS3

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS

0.001

Percentile

35.0%

JSON

Due to an improper check for unusual or exceptional conditions in Juniper Networks Junos OS and Junos OS Evolved the Routing Protocol Daemon (RPD) service, upon receipt of a specific matching BGP packet meeting a specific term in the flowspec configuration, crashes and restarts causing a Denial of Service (DoS). Continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition. This issue affects only Multiprotocol BGP (MP-BGP) VPNv6 FlowSpec deployments. This issue affects: Juniper Networks Junos OS: 18.4 versions prior to 18.4R1-S8, 18.4R2-S7, 18.4R3-S7; 19.1 versions prior to 19.1R2-S2, 19.1R3-S4; 19.2 versions prior to 19.2R1-S6, 19.2R3-S2; 19.3 versions prior to 19.3R3-S2; 19.4 versions prior to 19.4R2-S4, 19.4R3-S1; 20.1 versions prior to 20.1R2, 20.1R3; 20.2 versions prior to 20.2R2, 20.2R3; 20.3 versions prior to 20.3R1-S1, 20.3R2. Juniper Networks Junos OS Evolved: All versions after 18.4R1-EVO prior to 20.3R2-EVO. This issue does not affect: Juniper Networks Junos OS versions prior to 18.4R1. Juniper Networks Junos OS Evolved versions prior to 18.4R1-EVO.

Affected configurations

Nvd

Node

juniperjunosMatch18.4-

juniperjunosMatch18.4r1

juniperjunosMatch18.4r1-s1

juniperjunosMatch18.4r1-s2

juniperjunosMatch18.4r1-s3

juniperjunosMatch18.4r1-s4

juniperjunosMatch18.4r1-s5

juniperjunosMatch18.4r1-s6

juniperjunosMatch18.4r1-s7

juniperjunosMatch18.4r2

juniperjunosMatch18.4r2-s1

juniperjunosMatch18.4r2-s2

juniperjunosMatch18.4r2-s3

juniperjunosMatch18.4r2-s4

juniperjunosMatch18.4r2-s5

juniperjunosMatch18.4r2-s6

juniperjunosMatch18.4r3

juniperjunosMatch18.4r3-s1

juniperjunosMatch18.4r3-s2

juniperjunosMatch18.4r3-s3

juniperjunosMatch18.4r3-s4

juniperjunosMatch18.4r3-s5

juniperjunosMatch18.4r3-s6

juniperjunosMatch19.1-

juniperjunosMatch19.1r1

juniperjunosMatch19.1r1-s1

juniperjunosMatch19.1r1-s2

juniperjunosMatch19.1r1-s3

juniperjunosMatch19.1r1-s4

juniperjunosMatch19.1r1-s5

juniperjunosMatch19.1r2

juniperjunosMatch19.1r2-s1

juniperjunosMatch19.1r3

juniperjunosMatch19.1r3-s1

juniperjunosMatch19.1r3-s2

juniperjunosMatch19.1r3-s3

juniperjunosMatch19.2-

juniperjunosMatch19.2r1

juniperjunosMatch19.2r1-s1

juniperjunosMatch19.2r1-s2

juniperjunosMatch19.2r1-s3

juniperjunosMatch19.2r1-s4

juniperjunosMatch19.2r1-s5

juniperjunosMatch19.2r2

juniperjunosMatch19.2r2-s1

juniperjunosMatch19.2r3

juniperjunosMatch19.2r3-s1

juniperjunosMatch19.3-

juniperjunosMatch19.3r1

juniperjunosMatch19.3r1-s1

juniperjunosMatch19.3r2

juniperjunosMatch19.3r2-s1

juniperjunosMatch19.3r2-s2

juniperjunosMatch19.3r2-s3

juniperjunosMatch19.3r2-s4

juniperjunosMatch19.3r2-s5

juniperjunosMatch19.3r3

juniperjunosMatch19.4r1

juniperjunosMatch19.4r1-s1

juniperjunosMatch19.4r1-s2

juniperjunosMatch19.4r2

juniperjunosMatch19.4r2-s1

juniperjunosMatch19.4r2-s2

juniperjunosMatch19.4r2-s3

juniperjunosMatch19.4r3

juniperjunosMatch20.1r1

juniperjunosMatch20.1r1-s1

juniperjunosMatch20.1r1-s2

juniperjunosMatch20.1r1-s3

juniperjunosMatch20.1r1-s4

juniperjunosMatch20.2r1

juniperjunosMatch20.2r1-s1

juniperjunosMatch20.2r1-s2

juniperjunosMatch20.2r1-s3

juniperjunosMatch20.3r1

juniperjunos_os_evolvedMatch19.1r1

juniperjunos_os_evolvedMatch19.1r2

juniperjunos_os_evolvedMatch19.2r1

juniperjunos_os_evolvedMatch19.2r2

juniperjunos_os_evolvedMatch19.3r1

juniperjunos_os_evolvedMatch19.3r2

juniperjunos_os_evolvedMatch20.1r1

VendorProductVersionCPE
juniperjunos18.4cpe:2.3:o:juniper:junos:18.4:-:*:*:*:*:*:*
juniperjunos18.4cpe:2.3:o:juniper:junos:18.4:r1:*:*:*:*:*:*
juniperjunos18.4cpe:2.3:o:juniper:junos:18.4:r1-s1:*:*:*:*:*:*
juniperjunos18.4cpe:2.3:o:juniper:junos:18.4:r1-s2:*:*:*:*:*:*
juniperjunos18.4cpe:2.3:o:juniper:junos:18.4:r1-s3:*:*:*:*:*:*
juniperjunos18.4cpe:2.3:o:juniper:junos:18.4:r1-s4:*:*:*:*:*:*
juniperjunos18.4cpe:2.3:o:juniper:junos:18.4:r1-s5:*:*:*:*:*:*
juniperjunos18.4cpe:2.3:o:juniper:junos:18.4:r1-s6:*:*:*:*:*:*
juniperjunos18.4cpe:2.3:o:juniper:junos:18.4:r1-s7:*:*:*:*:*:*
juniperjunos18.4cpe:2.3:o:juniper:junos:18.4:r2:*:*:*:*:*:*

Vendor	Product	Version	CPE
juniper	junos	18.4	cpe:2.3:o:juniper:junos:18.4:-::::::
juniper	junos	18.4	cpe:2.3:o:juniper:junos:18.4:r1::::::
juniper	junos	18.4	cpe:2.3:o:juniper:junos:18.4:r1-s1::::::
juniper	junos	18.4	cpe:2.3:o:juniper:junos:18.4:r1-s2::::::
juniper	junos	18.4	cpe:2.3:o:juniper:junos:18.4:r1-s3::::::
juniper	junos	18.4	cpe:2.3:o:juniper:junos:18.4:r1-s4::::::
juniper	junos	18.4	cpe:2.3:o:juniper:junos:18.4:r1-s5::::::
juniper	junos	18.4	cpe:2.3:o:juniper:junos:18.4:r1-s6::::::
juniper	junos	18.4	cpe:2.3:o:juniper:junos:18.4:r1-s7::::::
juniper	junos	18.4	cpe:2.3:o:juniper:junos:18.4:r2::::::

Rows per page:

1-10 of 821

CNA Affected

[
  {
    "product": "Junos OS",
    "vendor": "Juniper Networks",
    "versions": [
      {
        "lessThan": "18.4R1",
        "status": "unaffected",
        "version": "unspecified",
        "versionType": "custom"
      },
      {
        "lessThan": "18.4R1-S8, 18.4R2-S7, 18.4R3-S7",
        "status": "affected",
        "version": "18.4",
        "versionType": "custom"
      },
      {
        "lessThan": "19.1R2-S2, 19.1R3-S4",
        "status": "affected",
        "version": "19.1",
        "versionType": "custom"
      },
      {
        "lessThan": "19.2R1-S6, 19.2R3-S2",
        "status": "affected",
        "version": "19.2",
        "versionType": "custom"
      },
      {
        "lessThan": "19.3R3-S2",
        "status": "affected",
        "version": "19.3",
        "versionType": "custom"
      },
      {
        "lessThan": "19.4R2-S4, 19.4R3-S1",
        "status": "affected",
        "version": "19.4",
        "versionType": "custom"
      },
      {
        "lessThan": "20.1R2, 20.1R3, 20.1R3-EVO",
        "status": "affected",
        "version": "20.1",
        "versionType": "custom"
      },
      {
        "lessThan": "20.2R2, 20.2R3, 20.2R3-EVO",
        "status": "affected",
        "version": "20.2",
        "versionType": "custom"
      },
      {
        "lessThan": "20.3R1-S1, 20.3R2, 20.3R2-EVO",
        "status": "affected",
        "version": "20.3",
        "versionType": "custom"
      }
    ]
  },
  {
    "product": "Junos OS Evolved",
    "vendor": "Juniper Networks",
    "versions": [
      {
        "lessThan": "18.4R1-EVO",
        "status": "unaffected",
        "version": "unspecified",
        "versionType": "custom"
      },
      {
        "lessThan": "20.3R2-EVO",
        "status": "affected",
        "version": "20.3-EVO",
        "versionType": "custom"
      }
    ]
  }
]

References

kb.juniper.net/JSA11131

CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:N/AC:L/Au:S/C:N/I:N/A:C

CVSS3

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS

0.001

Percentile

35.0%

JSON

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