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cve[email protected]CVE-2021-0224
HistoryApr 22, 2021 - 8:15 p.m.

CVE-2021-0224

2021-04-2220:15:08
CWE-770
web.nvd.nist.gov
19
2
cve-2021-0224
juniper networks
dos
vulnerability
nvd
junos os

3.3 Low

CVSS2

Attack Vector

ADJACENT_NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

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

0.001 Low

EPSS

Percentile

25.2%

A vulnerability in the handling of internal resources necessary to bring up a large number of Layer 2 broadband remote access subscriber (BRAS) nodes in Juniper Networks Junos OS can cause the Access Node Control Protocol daemon (ANCPD) to crash and restart, leading to a Denial of Service (DoS) condition. Continued processing of spoofed subscriber nodes will create a sustained Denial of Service (DoS) condition. When the number of subscribers attempting to connect exceeds the configured maximum-discovery-table-entries value, the subscriber fails to map to an internal neighbor entry, causing the ANCPD process to crash. This issue affects Juniper Networks Junos OS: All versions prior to 17.3R3-S12; 17.4 versions prior to 17.4R2-S13; 18.1 versions prior to 18.1R3-S13; 18.2 versions prior to 18.2R3-S8; 18.3 versions prior to 18.3R3-S5; 18.4 versions prior to 18.4R1-S8, 18.4R3-S8; 19.1 versions prior to 19.1R3-S4; 19.2 versions prior to 19.2R3-S2; 19.3 versions prior to 19.3R3-S1; 19.4 versions prior to 19.4R3-S1; 20.1 versions prior to 20.1R2; 20.2 versions prior to 20.2R2; 20.3 versions prior to 20.3R2.

Affected configurations

NVD
Node
juniperjunosMatch17.3-
OR
juniperjunosMatch17.3r1
OR
juniperjunosMatch17.3r1-s1
OR
juniperjunosMatch17.3r1-s4
OR
juniperjunosMatch17.3r2
OR
juniperjunosMatch17.3r2-s1
OR
juniperjunosMatch17.3r2-s2
OR
juniperjunosMatch17.3r2-s3
OR
juniperjunosMatch17.3r2-s4
OR
juniperjunosMatch17.3r2-s5
OR
juniperjunosMatch17.3r3
OR
juniperjunosMatch17.3r3-
OR
juniperjunosMatch17.3r3-s1
OR
juniperjunosMatch17.3r3-s10
OR
juniperjunosMatch17.3r3-s11
OR
juniperjunosMatch17.3r3-s2
OR
juniperjunosMatch17.3r3-s3
OR
juniperjunosMatch17.3r3-s4
OR
juniperjunosMatch17.3r3-s5
OR
juniperjunosMatch17.3r3-s6
OR
juniperjunosMatch17.3r3-s7
OR
juniperjunosMatch17.3r3-s8
OR
juniperjunosMatch17.3r3-s9
OR
juniperjunosMatch17.4-
OR
juniperjunosMatch17.4r1
OR
juniperjunosMatch17.4r1-s1
OR
juniperjunosMatch17.4r1-s2
OR
juniperjunosMatch17.4r1-s3
OR
juniperjunosMatch17.4r1-s4
OR
juniperjunosMatch17.4r1-s5
OR
juniperjunosMatch17.4r1-s6
OR
juniperjunosMatch17.4r1-s7
OR
juniperjunosMatch17.4r2
OR
juniperjunosMatch17.4r2-s1
OR
juniperjunosMatch17.4r2-s10
OR
juniperjunosMatch17.4r2-s11
OR
juniperjunosMatch17.4r2-s12
OR
juniperjunosMatch17.4r2-s2
OR
juniperjunosMatch17.4r2-s3
OR
juniperjunosMatch17.4r2-s4
OR
juniperjunosMatch17.4r2-s5
OR
juniperjunosMatch17.4r2-s6
OR
juniperjunosMatch17.4r2-s7
OR
juniperjunosMatch17.4r2-s8
OR
juniperjunosMatch17.4r2-s9
OR
juniperjunosMatch18.1-
OR
juniperjunosMatch18.1r1
OR
juniperjunosMatch18.1r2
OR
juniperjunosMatch18.1r2-s1
OR
juniperjunosMatch18.1r2-s2
OR
juniperjunosMatch18.1r2-s4
OR
juniperjunosMatch18.1r3
OR
juniperjunosMatch18.1r3-s1
OR
juniperjunosMatch18.1r3-s10
OR
juniperjunosMatch18.1r3-s11
OR
juniperjunosMatch18.1r3-s12
OR
juniperjunosMatch18.1r3-s2
OR
juniperjunosMatch18.1r3-s3
OR
juniperjunosMatch18.1r3-s4
OR
juniperjunosMatch18.1r3-s5
OR
juniperjunosMatch18.1r3-s6
OR
juniperjunosMatch18.1r3-s7
OR
juniperjunosMatch18.1r3-s8
OR
juniperjunosMatch18.1r3-s9
OR
juniperjunosMatch18.2-
OR
juniperjunosMatch18.2r1
OR
juniperjunosMatch18.2r1-
OR
juniperjunosMatch18.2r1-s2
OR
juniperjunosMatch18.2r1-s3
OR
juniperjunosMatch18.2r1-s4
OR
juniperjunosMatch18.2r1-s5
OR
juniperjunosMatch18.2r2
OR
juniperjunosMatch18.2r2-s1
OR
juniperjunosMatch18.2r2-s2
OR
juniperjunosMatch18.2r2-s3
OR
juniperjunosMatch18.2r2-s4
OR
juniperjunosMatch18.2r2-s5
OR
juniperjunosMatch18.2r2-s6
OR
juniperjunosMatch18.2r2-s7
OR
juniperjunosMatch18.2r3
OR
juniperjunosMatch18.2r3-s1
OR
juniperjunosMatch18.2r3-s2
OR
juniperjunosMatch18.2r3-s3
OR
juniperjunosMatch18.2r3-s4
OR
juniperjunosMatch18.2r3-s5
OR
juniperjunosMatch18.2r3-s6
OR
juniperjunosMatch18.2r3-s7
OR
juniperjunosMatch18.3-
OR
juniperjunosMatch18.3r1
OR
juniperjunosMatch18.3r1-s1
OR
juniperjunosMatch18.3r1-s2
OR
juniperjunosMatch18.3r1-s3
OR
juniperjunosMatch18.3r1-s4
OR
juniperjunosMatch18.3r1-s5
OR
juniperjunosMatch18.3r1-s6
OR
juniperjunosMatch18.3r2
OR
juniperjunosMatch18.3r2-s1
OR
juniperjunosMatch18.3r2-s2
OR
juniperjunosMatch18.3r2-s3
OR
juniperjunosMatch18.3r2-s4
OR
juniperjunosMatch18.3r3
OR
juniperjunosMatch18.3r3-s1
OR
juniperjunosMatch18.3r3-s2
OR
juniperjunosMatch18.3r3-s3
OR
juniperjunosMatch18.3r3-s4
OR
juniperjunosMatch18.4-
OR
juniperjunosMatch18.4r1
OR
juniperjunosMatch18.4r1-s1
OR
juniperjunosMatch18.4r1-s2
OR
juniperjunosMatch18.4r1-s3
OR
juniperjunosMatch18.4r1-s4
OR
juniperjunosMatch18.4r1-s5
OR
juniperjunosMatch18.4r1-s6
OR
juniperjunosMatch18.4r1-s7
OR
juniperjunosMatch18.4r2
OR
juniperjunosMatch18.4r2-s1
OR
juniperjunosMatch18.4r2-s2
OR
juniperjunosMatch18.4r2-s3
OR
juniperjunosMatch18.4r2-s4
OR
juniperjunosMatch18.4r2-s5
OR
juniperjunosMatch18.4r2-s6
OR
juniperjunosMatch18.4r3
OR
juniperjunosMatch18.4r3-s1
OR
juniperjunosMatch18.4r3-s2
OR
juniperjunosMatch18.4r3-s3
OR
juniperjunosMatch18.4r3-s4
OR
juniperjunosMatch18.4r3-s5
OR
juniperjunosMatch18.4r3-s6
OR
juniperjunosMatch18.4r3-s7
OR
juniperjunosMatch19.1-
OR
juniperjunosMatch19.1r1
OR
juniperjunosMatch19.1r1-s1
OR
juniperjunosMatch19.1r1-s2
OR
juniperjunosMatch19.1r1-s3
OR
juniperjunosMatch19.1r1-s4
OR
juniperjunosMatch19.1r1-s5
OR
juniperjunosMatch19.1r2
OR
juniperjunosMatch19.1r2-s1
OR
juniperjunosMatch19.1r3
OR
juniperjunosMatch19.1r3-s1
OR
juniperjunosMatch19.1r3-s2
OR
juniperjunosMatch19.1r3-s3
OR
juniperjunosMatch19.2-
OR
juniperjunosMatch19.2r1
OR
juniperjunosMatch19.2r1-s1
OR
juniperjunosMatch19.2r1-s2
OR
juniperjunosMatch19.2r1-s3
OR
juniperjunosMatch19.2r1-s4
OR
juniperjunosMatch19.2r1-s5
OR
juniperjunosMatch19.2r2
OR
juniperjunosMatch19.2r2-s1
OR
juniperjunosMatch19.2r3
OR
juniperjunosMatch19.2r3-s1
OR
juniperjunosMatch19.3-
OR
juniperjunosMatch19.3r1
OR
juniperjunosMatch19.3r1-s1
OR
juniperjunosMatch19.3r2
OR
juniperjunosMatch19.3r2-s1
OR
juniperjunosMatch19.3r2-s2
OR
juniperjunosMatch19.3r2-s3
OR
juniperjunosMatch19.3r2-s4
OR
juniperjunosMatch19.3r2-s5
OR
juniperjunosMatch19.3r3
OR
juniperjunosMatch19.4r1
OR
juniperjunosMatch19.4r1-s1
OR
juniperjunosMatch19.4r1-s2
OR
juniperjunosMatch19.4r2
OR
juniperjunosMatch19.4r2-s1
OR
juniperjunosMatch19.4r2-s2
OR
juniperjunosMatch19.4r3
OR
juniperjunosMatch20.1r1
OR
juniperjunosMatch20.1r1-s1
OR
juniperjunosMatch20.1r1-s2
OR
juniperjunosMatch20.1r1-s3
OR
juniperjunosMatch20.1r1-s4
OR
juniperjunosMatch20.2r1
OR
juniperjunosMatch20.2r1-s1
OR
juniperjunosMatch20.2r1-s2
OR
juniperjunosMatch20.2r1-s3
OR
juniperjunosMatch20.3r1
OR
juniperjunosMatch20.3r1-s1

CNA Affected

[
  {
    "product": "Junos OS",
    "vendor": "Juniper Networks",
    "versions": [
      {
        "lessThan": "17.3R3-S12",
        "status": "affected",
        "version": "All",
        "versionType": "custom"
      },
      {
        "lessThan": "17.4R2-S13",
        "status": "affected",
        "version": "17.4",
        "versionType": "custom"
      },
      {
        "lessThan": "18.1R3-S13",
        "status": "affected",
        "version": "18.1",
        "versionType": "custom"
      },
      {
        "lessThan": "18.2R3-S8",
        "status": "affected",
        "version": "18.2",
        "versionType": "custom"
      },
      {
        "lessThan": "18.3R3-S5",
        "status": "affected",
        "version": "18.3",
        "versionType": "custom"
      },
      {
        "lessThan": "18.4R1-S8, 18.4R3-S8",
        "status": "affected",
        "version": "18.4",
        "versionType": "custom"
      },
      {
        "lessThan": "19.1R3-S4",
        "status": "affected",
        "version": "19.1",
        "versionType": "custom"
      },
      {
        "lessThan": "19.2R3-S2",
        "status": "affected",
        "version": "19.2",
        "versionType": "custom"
      },
      {
        "lessThan": "19.3R3-S1",
        "status": "affected",
        "version": "19.3",
        "versionType": "custom"
      },
      {
        "lessThan": "19.4R3-S1",
        "status": "affected",
        "version": "19.4",
        "versionType": "custom"
      },
      {
        "lessThan": "20.1R2",
        "status": "affected",
        "version": "20.1",
        "versionType": "custom"
      },
      {
        "lessThan": "20.2R2",
        "status": "affected",
        "version": "20.2",
        "versionType": "custom"
      },
      {
        "lessThan": "20.3R2",
        "status": "affected",
        "version": "20.3",
        "versionType": "custom"
      }
    ]
  }
]

Social References

More

3.3 Low

CVSS2

Attack Vector

ADJACENT_NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

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

0.001 Low

EPSS

Percentile

25.2%

Related for CVE-2021-0224