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cve[email protected]CVE-2021-0209
HistoryJan 15, 2021 - 6:15 p.m.

CVE-2021-0209

2021-01-1518:15:15
CWE-824
web.nvd.nist.gov
48
9
juniper networks
junos os
evolved
bgp
denial of service
dos
cve-2021-0209

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

5.7 Medium

CVSS2

Access Vector

Access Complexity

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

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

0.001 Low

EPSS

Percentile

24.8%

In Juniper Networks Junos OS Evolved an attacker sending certain valid BGP update packets may cause Junos OS Evolved to access an uninitialized pointer causing RPD to core leading to a Denial of Service (DoS). Continued receipt of these types of valid BGP update packets will cause an extended Denial of Service condition. RPD will require a restart to recover. An indicator of compromise is to see if the file rpd.re exists by issuing the command: show system core-dumps This issue affects: Juniper Networks Junos OS Evolved 19.4 versions prior to 19.4R2-S2-EVO; 20.1 versions prior to 20.1R1-S2-EVO, 20.1R2-S1-EVO. This issue does not affect Junos OS.

Affected configurations

NVD
Node
juniperjunos_os_evolvedMatch19.4r1
OR
juniperjunos_os_evolvedMatch19.4r2
OR
juniperjunos_os_evolvedMatch19.4r2-s1
OR
juniperjunos_os_evolvedMatch20.1-
OR
juniperjunos_os_evolvedMatch20.1r1
OR
juniperjunos_os_evolvedMatch20.1r1-s1

CNA Affected

[
  {
    "product": "Junos OS Evolved",
    "vendor": "Juniper Networks",
    "versions": [
      {
        "lessThan": "19.4R2-S2-EVO",
        "status": "affected",
        "version": "19.4",
        "versionType": "custom"
      },
      {
        "lessThan": "20.1R1-S2-EVO, 20.1R2-S1-EVO",
        "status": "affected",
        "version": "20.1",
        "versionType": "custom"
      }
    ]
  }
]

Social References

More

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

5.7 Medium

CVSS2

Access Vector

Access Complexity

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

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

0.001 Low

EPSS

Percentile

24.8%

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