Improper Handling of Exceptional Conditions Vulnerability Leads to Denial of Service (DoS)
CVE-2024-39552

7.5HIGH

Key Information:

Vendor

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

What is CVE-2024-39552?

An Improper Handling of Exceptional Conditions vulnerability exists in the routing protocol daemon (RPD) of Junos OS and Junos OS Evolved from Juniper Networks. This flaw allows unauthenticated attackers to remotely manipulate the RPD process through the transmission of malformed BGP UPDATE packets over an established BGP session. Upon receiving a malformed packet, the RPD process crashes and restarts, leading to continuous denial of service for affected devices. The vulnerability impacts both eBGP and iBGP implementations across IPv4 and IPv6, necessitating an established session for exploitation.

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Affected Version(s)

Junos OS 0 < 20.4R3-S9

Junos OS 21.2 < 21.2R3-S7

Junos OS 21.3 < 21.3R3-S6

References

https://supportportal.juniper.net/JSA75726
vendor-advisory
https://www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:N/A...
vendor-advisory

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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