CVE-2024-47503

Junos OS: SRX4600 and SRX5000 Series: Sequence of specific PIM packets causes a flowd crash

Description

An Improper Check for Unusual or Exceptional Conditions vulnerability in the flow processing daemon (flowd) of Juniper Networks Junos OS on SRX4600 and SRX5000 Series allows an unauthenticated and logically adjacent attacker to cause a Denial-of-Service (DoS). If in a multicast scenario a sequence of specific PIM packets is received, this will cause a flowd crash and restart, which leads to momentary service interruption. This issue affects Junos OS on SRX 4600 and SRX 5000 Series: * All versions before 21.4R3-S9, * 22.2 versions before 22.2R3-S5, * 22.3 versions before 22.3R3-S4, * 22.4 versions before 22.4R3-S4, * 23.2 versions before 23.2R2-S2, * 23.4 versions before 23.4R2,  * 24.2 versions before 24.2R1-S1, 24.2R2.

Remediation

Solution:

  • The following software releases have been updated to resolve this specific issue: 21.4R3-S9, 22.2R3-S5*, 22.3R3-S4*, 22.4R3-S4, 23.2R2-S2, 23.4R2, 24.2R1-S1, 24.2R2*, 24.4R1*, and all subsequent releases. (* future release)

Workaround:

  • There are no known workarounds for this issue.

Category

7.1
CVSS
Severity: High
CVSS 4.0 •
CVSS 3.1 •
EPSS 0.05%
Vendor Advisory juniper.net
Affected: Juniper Networks Junos OS
Published at:
Updated at:

References

Link Tags
https://supportportal.juniper.net/JSA88133 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2024-47503?
CVE-2024-47503 has been scored as a high severity vulnerability.
How to fix CVE-2024-47503?
To fix CVE-2024-47503: The following software releases have been updated to resolve this specific issue: 21.4R3-S9, 22.2R3-S5*, 22.3R3-S4*, 22.4R3-S4, 23.2R2-S2, 23.4R2, 24.2R1-S1, 24.2R2*, 24.4R1*, and all subsequent releases. (* future release)
Is CVE-2024-47503 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2024-47503 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-47503?
CVE-2024-47503 affects Juniper Networks Junos OS.
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