QID 43972

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:
All versions prior to 19.3R3-S7;
19.4 versions prior to 19.4R2-S8, 19.4R3-S10;
20.2 versions prior to 20.2R3-S6;
20.3 versions prior to 20.3R3-S5;
20.4 versions prior to 20.4R3-S5;
21.1 versions prior to 21.1R3-S4;
21.2 versions prior to 21.2R3;
21.3 versions prior to 21.3R3;
21.4 versions prior to 21.4R2.
QID detection logic: (Authenticated)
It checks for vulnerable Junos OS version.

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