6.5
MEDIUM CVSS 3.1
CVE-2020-1641
Junos OS: A race condition on receipt of crafted LLDP packets leads to a memory leak and an LLDP crash.
Description

A Race Condition vulnerability in Juniper Networks Junos OS LLDP implementation allows an attacker to cause LLDP to crash leading to a Denial of Service (DoS). This issue occurs when crafted LLDP packets are received by the device from an adjacent device. Multiple LACP flaps will occur after LLDP crashes. An indicator of compromise is to evaluate log file details for lldp with RLIMIT. Intervention should occur before 85% threshold of used KB versus maximum available KB memory is reached. show log messages | match RLIMIT | match lldp | last 20 Matching statement is " /kernel: %KERNEL-[number]: Process ([pid #],lldpd) has exceeded 85% of RLIMIT_DATA: " with [] as variable data to evaluate for. This issue affects: Juniper Networks Junos OS: 12.3 versions prior to 12.3R12-S15; 12.3X48 versions prior to 12.3X48-D95; 15.1 versions prior to 15.1R7-S6; 15.1X49 versions prior to 15.1X49-D200; 15.1X53 versions prior to 15.1X53-D593; 16.1 versions prior to 16.1R7-S7; 17.1 versions prior to 17.1R2-S11, 17.1R3-S2; 17.2 versions prior to 17.2R1-S9, 17.2R3-S3; 17.3 versions prior to 17.3R2-S5, 17.3R3-S6; 17.4 versions prior to 17.4R2-S4, 17.4R3; 18.1 versions prior to 18.1R3-S5; 18.2 versions prior to 18.2R2-S7, 18.2R3; 18.2X75 versions prior to 18.2X75-D12, 18.2X75-D33, 18.2X75-D50, 18.2X75-D420; 18.3 versions prior to 18.3R1-S7, 18.3R2-S3, 18.3R3; 18.4 versions prior to 18.4R1-S5, 18.4R2; 19.1 versions prior to 19.1R1-S4, 19.1R2.

INFO

Published Date :

July 17, 2020, 7:15 p.m.

Last Modified :

Nov. 21, 2024, 5:11 a.m.

Remotely Exploit :

No
Affected Products

The following products are affected by CVE-2020-1641 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Juniper junos
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 2.0 LOW [email protected]
CVSS 3.1 MEDIUM [email protected]
CVSS 3.1 MEDIUM [email protected]
Solution
This information is provided by the 3rd party feeds.
  • Apply the relevant Junos software release referenced in Juniper advisory JSA11027
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2020-1641.

URL Resource
https://kb.juniper.net/JSA11027 Vendor Advisory
https://kb.juniper.net/JSA11027 Vendor Advisory
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2020-1641 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2020-1641 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2020-1641 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2020-1641 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://kb.juniper.net/JSA11027
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Reanalysis by [email protected]

    Jul. 23, 2021

    Action Type Old Value New Value
    Removed CVSS V2 NIST (AV:A/AC:M/Au:N/C:N/I:N/A:P)
    Added CVSS V2 NIST (AV:A/AC:L/Au:N/C:N/I:N/A:P)
    Removed CVSS V3.1 NIST AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
    Added CVSS V3.1 NIST AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • Reanalysis by [email protected]

    Aug. 12, 2020

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    Jul. 24, 2020

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:A/AC:M/Au:N/C:N/I:N/A:P)
    Added CVSS V3.1 NIST AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
    Changed Reference Type https://kb.juniper.net/JSA11027 No Types Assigned https://kb.juniper.net/JSA11027 Vendor Advisory
    Added CWE NIST CWE-362
    Added CPE Configuration OR *cpe:2.3:o:juniper:junos:12.3:-:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:12.3:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:12.3:r10:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:12.3:r10-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:12.3:r10-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:12.3:r11:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:12.3:r12:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:12.3:r12-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:12.3:r12-s11:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:12.3:r12-s12:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:12.3:r12-s13:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:12.3:r12-s14:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:12.3:r12-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:12.3:r12-s4:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:12.3:r12-s6:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:12.3:r12-s8:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:12.3x48:-:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:12.3x48:d10:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:12.3x48:d100:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:12.3x48:d15:*:*:*:*:*:* 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*cpe:2.3:o:juniper:junos:15.1:r4-s8:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:r4-s9:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:r5:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:r5-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:r5-s5:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:r5-s6:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:r6:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:r6-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:r6-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:r6-s6:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:r7:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:r7-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:r7-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:r7-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:r7-s4:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:r7-s5:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1x49:-:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1x49:d10:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1x49:d100:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1x49:d110:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1x49:d120:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1x49:d130:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1x49:d140:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1x49:d15:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1x49:d150:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1x49:d160:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1x49:d170:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1x49:d180:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1x49:d190:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1x49:d20:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1x49:d25:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1x49:d30:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1x49:d35:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1x49:d40:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1x49:d45:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1x49:d50:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1x49:d55:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1x49:d60:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1x49:d65:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1x49:d70:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1x49:d75:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1x49:d80:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1x49:d90:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1x53:-:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1x53:d10:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1x53:d20:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1x53:d21:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1x53:d210:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1x53:d230:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1x53:d231:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1x53:d232:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1x53:d233:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1x53:d234:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1x53:d235:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1x53:d236:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1x53:d237:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1x53:d25:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1x53:d30:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1x53:d31:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1x53:d32:*:*:*:*:*:* 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*cpe:2.3:o:juniper:junos:17.1:r2-s6:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.1:r2-s7:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.1:r2-s8:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.1:r2-s9:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.1:r3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.1:r3-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.2:-:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.2:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.2:r1-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.2:r1-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.2:r1-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.2:r1-s4:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.2:r1-s5:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.2:r1-s7:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.2:r1-s8:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.2:r2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.2:r2-s11:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.2:r2-s6:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.2:r2-s7:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.2:r3-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.2:r3-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.3:-:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.3:r1-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.3:r2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.3:r2-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.3:r2-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.3:r2-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.3:r2-s4:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.3:r3:-:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.3:r3-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.3:r3-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.3:r3-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.3:r3-s4:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.3:r3-s5:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.4:-:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.4:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.4:r1-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.4:r1-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.4:r1-s4:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.4:r1-s5:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.4:r1-s6:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.4:r1-s7:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.4:r2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.4:r2-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.4:r2-s10:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.4:r2-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.4:r2-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.1:-:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.1:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.1:r2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.1:r2-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.1:r2-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.1:r2-s4:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.1:r3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.1:r3-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.1:r3-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.1:r3-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.1:r3-s4:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.2:-:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.2:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.2:r1:-:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.2:r1-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.2:r1-s4:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.2:r1-s5:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.2:r2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.2:r2-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.2:r2-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.2:r2-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.2:r2-s4:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.2:r2-s5:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.2:r2-s6:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.2x75:-:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.2x75:d20:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.2x75:d30:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.2x75:d40:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.3:-:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.3:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.3:r1-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.3:r1-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.3:r1-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.3:r1-s5:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.3:r1-s6:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.3:r2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.3:r2-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.3:r2-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:-:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r1-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r1-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r1-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r1-s4:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.1:-:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.1:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.1:r1-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.1:r1-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.1:r1-s3:*:*:*:*:*:*
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 6.5
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact
Base CVSS Score: 3.3
Access Vector
Access Complexity
Authentication
Confidentiality Impact
Integrity Impact
Availability Impact
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.06 }} -0.02%

score

0.16489

percentile