QID 43968

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

A Buffer Overflow vulnerability in SIP ALG of Juniper Networks Junos OS allows a network-based, unauthenticated attacker to cause a Denial of Service (DoS).

Affected Junos versions:
Juniper Networks Junos OS on MX Series and SRX Series 20.4 versions prior to 20.4R3-S5
21.1 versions prior to 21.1R3-S4
21.2 versions prior to 21.2R3-S2
21.3 versions prior to 21.3R3-S1
21.4 versions prior to 21.4R3
22.1 versions prior to 22.1R1-S2, 22.1R2
22.2 versions prior to 22.2R1-S1, 22.2R2
QID detection logic: (Authenticated)
It checks for vulnerable Junos OS version.

Note: This QID does not checks for only affected versions hence set to practice.

Successful exploitation allows a network-based, unauthenticated attacker to cause Denial of Service (DoS).