QID 43956

Date Published: 2023-01-30

QID 43956: Juniper Network Operating System (Junos OS) :MX Series Suspicious Control Flow Detection (scfd) Memory Leak Vulnerability (JSA70206)

Juniper Junos is the network operating system used in Juniper Networks hardware systems.

Affected releases are Junos OS:
All versions prior to 20.2R3-S5
20.3 version 20.3R1 and later versions

QID detection logic: (Authenticated)
It checks for vulnerable Junos OS version.

This vulnerability might allows an unauthenticated adjacent attacker to cause a Denial of Service (DoS).

CVSS V3 rated as High - 6.5 severity.

CVSS V2 rated as Medium - 5 severity.

Solution

The vendor has released fixes.
For more information please visit JSA70206.

Workaround:
Devices are only vulnerable when the Suspicious Control Flow Detection (scfd) feature is enabled.

Vendor References

JSA70206 - supportportal.juniper.net/s/article/2023-01-Security-Bulletin-Junos-OS-MX-Series-with-MPC10-MPC11-When-Suspicious-Control-Flow-Detection-scfd-is-enabled-and-an-attacker-is-sending-specific-traffic-this-causes-a-memory-leak-CVE-2023-22410?language=en_US

CVEs related to QID 43956

CVE-2023-22410 |

Software Advisories

Advisory ID	Software	Component	Link
JSA70206			supportportal.juniper.net/s/article/2023-01-Security-Bulletin-Junos-OS-MX-Series-with-MPC10-MPC11-When-Suspicious-Control-Flow-Detection-scfd-is-enabled-and-an-attacker-is-sending-specific-traffic-this-causes-a-memory-leak-CVE-2023-22410?language=en_US

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