Executive Summary

Informations
Name CVE-2020-1678 First vendor Publication 2020-10-16
Vendor Cve Last vendor Modification 2021-10-25

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Overall CVSS Score 6.5
Base Score 6.5 Environmental Score 6.5
impact SubScore 3.6 Temporal Score 6.5
Exploitabality Sub Score 2.8
 
Attack Vector Adjacent Attack Complexity Low
Privileges Required None User Interaction None
Scope Unchanged Confidentiality Impact None
Integrity Impact None Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:A/AC:M/Au:N/C:N/I:N/A:P)
Cvss Base Score 2.9 Attack Range Adjacent network
Cvss Impact Score 2.9 Attack Complexity Medium
Cvss Expoit Score 5.5 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

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.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-1678

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-401 Failure to Release Memory Before Removing Last Reference ('Memory Leak')

CPE : Common Platform Enumeration

TypeDescriptionCount
Os 7
Os 6

Sources (Detail)

Source Url
CONFIRM https://kb.juniper.net/JSA11075

Alert History

If you want to see full details history, please login or register.
0
1
2
3
4
5
6
7
Date Informations
2021-10-25 21:23:14
  • Multiple Updates
2021-10-23 17:23:09
  • Multiple Updates
2021-10-19 17:23:13
  • Multiple Updates
2021-05-04 13:50:32
  • Multiple Updates
2021-04-22 03:01:54
  • Multiple Updates
2020-10-27 21:23:33
  • Multiple Updates
2020-10-19 17:22:53
  • Multiple Updates
2020-10-17 05:22:55
  • First insertion