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[email protected]CVE-2021-31383

HistoryOct 19, 2021 - 7:15 p.m.

CVE-2021-31383

2021-10-1919:15:11

CWE-121

CWE-787

[email protected]

web.nvd.nist.gov

cve-2021-31383

point to multipoint

p2mp

stack-based buffer overflow

denial of service

dos

juniper networks

junos os

nvd

4.3 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:N/I:N/A:P

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

49.7%

JSON

In Point to MultiPoint (P2MP) scenarios within established sessions between network or adjacent neighbors the improper use of a source to destination copy write operation combined with a Stack-based Buffer Overflow on certain specific packets processed by the routing protocol daemon (RPD) of Juniper Networks Junos OS and Junos OS Evolved sent by a remote unauthenticated network attacker causes the RPD to crash causing a Denial of Service (DoS). Continued receipt and processing of these packets will create a sustained Denial of Service (DoS) condition. This issue affects: Juniper Networks Junos OS 19.2 versions prior to 19.2R3-S2; 19.3 versions prior to 19.3R2-S6, 19.3R3-S2; 19.4 versions prior to 19.4R1-S4, 19.4R2-S4, 19.4R3-S3; 20.1 versions prior to 20.1R2-S2, 20.1R3; 20.2 versions prior to 20.2R2-S3, 20.2R3; 20.3 versions prior to 20.3R2. This issue does not affect Juniper Networks Junos OS versions prior to 19.2R1. Juniper Networks Junos OS Evolved 20.1 versions prior to 20.1R3-EVO; 20.2 versions prior to 20.2R3-EVO; 20.3 versions prior to 20.3R2-EVO.

Affected configurations

NVD

Node

juniperjunosMatch19.2-

juniperjunosMatch19.2r1

juniperjunosMatch19.2r1-s1

juniperjunosMatch19.2r1-s2

juniperjunosMatch19.2r1-s3

juniperjunosMatch19.2r1-s4

juniperjunosMatch19.2r1-s5

juniperjunosMatch19.2r1-s6

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

juniperjunosMatch19.3r3-s1

juniperjunosMatch19.4r1

juniperjunosMatch19.4r1-s1

juniperjunosMatch19.4r1-s2

juniperjunosMatch19.4r1-s3

juniperjunosMatch19.4r2

juniperjunosMatch19.4r2-s1

juniperjunosMatch19.4r2-s2

juniperjunosMatch19.4r2-s3

juniperjunosMatch19.4r3

juniperjunosMatch19.4r3-s1

juniperjunosMatch19.4r3-s2

juniperjunosMatch20.1r1

juniperjunosMatch20.1r1-s1

juniperjunosMatch20.1r1-s2

juniperjunosMatch20.1r1-s3

juniperjunosMatch20.1r1-s4

juniperjunosMatch20.1r2

juniperjunosMatch20.1r2-s1

juniperjunosMatch20.2r1

juniperjunosMatch20.2r1-s1

juniperjunosMatch20.2r1-s2

juniperjunosMatch20.2r1-s3

juniperjunosMatch20.2r2

juniperjunosMatch20.2r2-s1

juniperjunosMatch20.2r2-s2

juniperjunosMatch20.3r1

juniperjunosMatch20.3r1-s1

juniperjunos_os_evolvedMatch20.1-

juniperjunos_os_evolvedMatch20.1r1

juniperjunos_os_evolvedMatch20.1r1-s1

juniperjunos_os_evolvedMatch20.1r2

juniperjunos_os_evolvedMatch20.1r2-s1

juniperjunos_os_evolvedMatch20.1r2-s2

juniperjunos_os_evolvedMatch20.1r2-s3

juniperjunos_os_evolvedMatch20.1r2-s4

juniperjunos_os_evolvedMatch20.1r2-s5

juniperjunos_os_evolvedMatch20.2-

juniperjunos_os_evolvedMatch20.2r1

juniperjunos_os_evolvedMatch20.2r1-s1

juniperjunos_os_evolvedMatch20.2r2

juniperjunos_os_evolvedMatch20.2r2-s1

juniperjunos_os_evolvedMatch20.3-

juniperjunos_os_evolvedMatch20.3r1

juniperjunos_os_evolvedMatch20.3r1-s1

juniperjunos_os_evolvedMatch20.3r1-s2

juniperjunos_os_evolvedMatch20.3r1-s3

CPENameOperatorVersion
juniper:junosjuniper junoseq19.2
juniper:junosjuniper junoseq19.3
juniper:junosjuniper junoseq19.4
juniper:junosjuniper junoseq20.1
juniper:junosjuniper junoseq20.2
juniper:junosjuniper junoseq20.3
juniper:junos_os_evolvedjuniper junos os evolvedeq20.1
juniper:junos_os_evolvedjuniper junos os evolvedeq20.2
juniper:junos_os_evolvedjuniper junos os evolvedeq20.3

CPE	Name	Operator	Version
juniper:junos	juniper junos	eq	19.2
juniper:junos	juniper junos	eq	19.3
juniper:junos	juniper junos	eq	19.4
juniper:junos	juniper junos	eq	20.1
juniper:junos	juniper junos	eq	20.2
juniper:junos	juniper junos	eq	20.3
juniper:junos_os_evolved	juniper junos os evolved	eq	20.1
juniper:junos_os_evolved	juniper junos os evolved	eq	20.2
juniper:junos_os_evolved	juniper junos os evolved	eq	20.3

CNA Affected

[
  {
    "product": "Junos OS",
    "vendor": "Juniper Networks",
    "versions": [
      {
        "lessThan": "19.2R1",
        "status": "unaffected",
        "version": "unspecified",
        "versionType": "custom"
      },
      {
        "lessThan": "19.2R3-S2",
        "status": "affected",
        "version": "19.2",
        "versionType": "custom"
      },
      {
        "lessThan": "19.3R2-S6, 19.3R3-S2",
        "status": "affected",
        "version": "19.3",
        "versionType": "custom"
      },
      {
        "lessThan": "19.4R1-S4, 19.4R2-S4, 19.4R3-S3",
        "status": "affected",
        "version": "19.4",
        "versionType": "custom"
      },
      {
        "lessThan": "20.1R2-S2, 20.1R3",
        "status": "affected",
        "version": "20.1",
        "versionType": "custom"
      },
      {
        "lessThan": "20.2R2-S3, 20.2R3",
        "status": "affected",
        "version": "20.2",
        "versionType": "custom"
      },
      {
        "lessThan": "20.3R2",
        "status": "affected",
        "version": "20.3",
        "versionType": "custom"
      }
    ]
  },
  {
    "product": "Junos OS Evolved",
    "vendor": "Juniper Networks",
    "versions": [
      {
        "lessThan": "20.1R3-EVO",
        "status": "affected",
        "version": "20.1",
        "versionType": "custom"
      },
      {
        "lessThan": "20.2R3-EVO",
        "status": "affected",
        "version": "20.2",
        "versionType": "custom"
      },
      {
        "lessThan": "20.3R2-EVO",
        "status": "affected",
        "version": "20.3",
        "versionType": "custom"
      }
    ]
  }
]

References

kb.juniper.net/JSA11251

4.3 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:N/I:N/A:P

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

49.7%

JSON

Related for CVE-2021-31383

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