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cve[email protected]CVE-2020-1678
HistoryOct 16, 2020 - 9:15 p.m.

CVE-2020-1678

2020-10-1621:15:13
CWE-401
CWE-400
web.nvd.nist.gov
27
juniper networks
junos os
evpn
memory leak
vulnerability
nvd
cve-2020-1678

2.9 Low

CVSS2

Attack Vector

ADJACENT_NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:A/AC:M/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

6.5 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

25.2%

On Juniper Networks Junos OS and Junos OS Evolved platforms with EVPN configured, receipt of specific BGP packets causes a slow memory leak. If the memory is exhausted the rpd process might crash. If the issue occurs, the memory leak could be seen by executing the “show task memory detail | match policy | match evpn” command multiple times to check if memory (Alloc Blocks value) is increasing. root@device> show task memory detail | match policy | match evpn ------------------------ Allocator Memory Report ------------------------ Name | Size | Alloc DTXP Size | Alloc Blocks | Alloc Bytes | MaxAlloc Blocks | MaxAlloc Bytes Policy EVPN Params 20 24 3330678 79936272 3330678 79936272 root@device> show task memory detail | match policy | match evpn ------------------------ Allocator Memory Report ------------------------ Name | Size | Alloc DTXP Size | Alloc Blocks | Alloc Bytes | MaxAlloc Blocks | MaxAlloc Bytes Policy EVPN Params 20 24 36620255 878886120 36620255 878886120 This issue affects: Juniper Networks Junos OS 19.4 versions prior to 19.4R2; 20.1 versions prior to 20.1R1-S4, 20.1R2; Juniper Networks Junos OS Evolved: 19.4 versions; 20.1 versions prior to 20.1R1-S4-EVO, 20.1R2-EVO; 20.2 versions prior to 20.2R1-EVO; This issue does not affect: Juniper Networks Junos OS releases prior to 19.4R1. Juniper Networks Junos OS Evolved releases prior to 19.4R1-EVO.

Affected configurations

NVD
Node
juniperjunosMatch19.4r1
OR
juniperjunosMatch19.4r1-s1
OR
juniperjunosMatch19.4r1-s2
OR
juniperjunosMatch20.1r1
OR
juniperjunosMatch20.1r1-s1
OR
juniperjunosMatch20.1r1-s2
OR
juniperjunosMatch20.1r1-s3
OR
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_evolvedMatch20.2-

CNA Affected

[
  {
    "product": "Junos OS",
    "vendor": "Juniper Networks",
    "versions": [
      {
        "lessThan": "19.4R2",
        "status": "affected",
        "version": "19.4",
        "versionType": "custom"
      },
      {
        "lessThan": "20.1R1-S4, 20.1R2",
        "status": "affected",
        "version": "20.1",
        "versionType": "custom"
      }
    ]
  },
  {
    "product": "Junos OS Evolved",
    "vendor": "Juniper Networks",
    "versions": [
      {
        "status": "affected",
        "version": "19.4-EVO"
      },
      {
        "lessThan": "20.1R1-S4-EVO, 20.1R2-EVO",
        "status": "affected",
        "version": "20.1-EVO",
        "versionType": "custom"
      }
    ]
  }
]

2.9 Low

CVSS2

Attack Vector

ADJACENT_NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:A/AC:M/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

6.5 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

25.2%

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