Vulnerability-Lookup

VAR-202010-0403

Vulnerability from variot - Updated: 2024-11-23 22:33

On Juniper Networks Junos OS devices configured with DHCPv6 relay enabled, receipt of a specific DHCPv6 packet might crash the jdhcpd daemon. The jdhcpd daemon automatically restarts without intervention, but continuous receipt of specific crafted DHCP messages will repeatedly crash jdhcpd, leading to an extended Denial of Service (DoS) condition. Only DHCPv6 packet can trigger this issue. DHCPv4 packet cannot trigger this issue. This issue affects Juniper Networks Junos OS: 17.3 versions prior to 17.3R3-S9; 17.4 versions prior to 17.4R2-S11, 17.4R3-S2, 17.4R3-S3; 18.1 versions prior to 18.1R3-S11; 18.2 versions prior to 18.2R3-S5; 18.3 versions prior to 18.3R2-S4, 18.3R3-S3; 18.4 versions prior to 18.4R2-S5, 18.4R3-S4; 19.1 versions prior to 19.1R2-S2, 19.1R3-S2; 19.2 versions prior to 19.2R1-S5, 19.2R2-S1, 19.2R3; 19.3 versions prior to 19.3R2-S4, 19.3R2-S4, 19.3R3; 19.4 versions prior to 19.4R1-S3, 19.4R2-S1, 19.4R3; 20.1 versions prior to 20.1R1-S3, 20.1R2. Juniper Networks Junos OS Is vulnerable to input validation.Denial of service (DoS) It may be put into a state. The operating system provides a secure programming interface and Junos SDK. A security vulnerability exists in Junos OS that could allow an attacker to trigger a fatal error through the DHCPv6 relay, triggering a denial of service

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CVE-2020-1672 (GCVE-0-2020-1672)

Vulnerability from cvelistv5 – Published: 2020-10-16 20:31 – Updated: 2024-09-16 19:15

Title

Junos OS: jdhcpd process crash when processing a specific DHCPDv6 packet in DHCPv6 relay configuration.

Summary

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE

Denial of Service (DoS)
CWE-20 - Improper Input Validation

Assigner

juniper

References

1 reference

URL	Tags
https://kb.juniper.net/JSA11069	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
Juniper Networks	Junos OS	Affected: 17.3 , < 17.3R3-S9 (custom) Affected: 17.4 , < 17.4R2-S11, 17.4R3-S2, 17.4R3-S3 (custom) Affected: 18.1 , < 18.1R3-S11 (custom) Affected: 18.2 , < 18.2R3-S5 (custom) Affected: 18.2X75 , < 18.2X75-D34, 18.2X75-D65 (custom) Affected: 18.3 , < 18.3R2-S4, 18.3R3-S3 (custom) Affected: 18.4 , < 18.4R2-S5, 18.4R3-S4 (custom) Affected: 19.1 , < 19.1R2-S2, 19.1R3-S2 (custom) Affected: 19.2 , < 19.2R1-S5, 19.2R2-S1, 19.2R3 (custom) Affected: 19.3 , < 19.3R2-S4, 19.3R2-S4, 19.3R3 (custom) Affected: 19.4 , < 19.4R1-S3, 19.4R2-S1, 19.4R3 (custom) Affected: 20.1 , < 20.1R1-S3, 20.1R2 (custom)

Date Public

2020-10-14 00:00

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

VAR-202010-0403

CVE-2020-1672 (GCVE-0-2020-1672)

Tags

Sightings

Nomenclature