Buffer copy without checking size of input vulnerability
CVE-2024-39543

6.5MEDIUM

Key Information:

Vendor

Juniper Networks
Status
Junos Os
Junos Os Evolved
Vendor
CVE Published:
11 July 2024

What is CVE-2024-39543?

A Buffer Copy without Checking Size of Input vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Juniper Networks Junos OS Evolved allows an unauthenticated, adjacent attacker to send specific RPKI-RTR packets resulting in a crash, creating a Denial of Service (DoS) condition. Continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition.

This issue affects 

Junos OS: 

  • All versions before 21.2R3-S8, 
  • from 21.4 before 21.4R3-S8,
  • from 22.2 before 22.2R3-S4, 
  • from 22.3 before 22.3R3-S3, 
  • from 22.4 before 22.4R3-S2, 
  • from 23.2 before 23.2R2-S1, 
  • from 23.4 before 23.4R2.

Junos OS Evolved: * All versions before 21.2R3-S8-EVO,

  • from 21.4 before 21.4R3-S8-EVO,
  • from 22.2 before 22.2R3-S4-EVO, 
  • from 22.3 before 22.3R3-S3-EVO,
  • from 22.4 before 22.4R3-S2-EVO, 
  • from 23.2 before 23.2R2-S1-EVO,
  • from 23.4 before 23.4R2-EVO.

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Affected Version(s)

Junos OS 0 < 21.2R3-S8

Junos OS 21.4 < 21.4R3-S8

Junos OS 22.2 < 22.2R3-S4

References

https://supportportal.juniper.net/JSA83004
vendor-advisory

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Adjacent Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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