CVE-2023-36836

published 2023-07-14

CVE-2023-36836: A Use of an Uninitialized Resource vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a local…

Priority P4 21 medium 4.7 CVSS 3.1

AV L AC H PR L UI N S U C N I N A H

A Use of an Uninitialized Resource vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a local, authenticated attacker with low privileges to cause a Denial of Service (DoS).

On all Junos OS and Junos OS Evolved platforms, in a Multicast only Fast Reroute (MoFRR) scenario, the rpd process can crash when a a specific low privileged CLI command is executed. The rpd crash will impact all routing protocols until the process has automatically been restarted. As the operational state which makes this issue exploitable is outside the attackers control, this issue is considered difficult to exploit. Continued execution of this command will lead to a sustained DoS.

This issue affects:
Juniper Networks Junos OS
19.4 version 19.4R3-S5 and later versions prior to 19.4R3-S9;
20.1 version 20.1R2 and later versions;
20.2 versions prior to 20.2R3-S7;
20.3 versions prior to 20.3R3-S5;
20.4 versions prior to 20.4R3-S6;
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 22.2R2.

Juniper Networks Junos OS Evolved
All versions prior to 20.4R3-S6-EVO;
21.1-EVO version 21.1R1-EVO and later versions;
21.2-EVO version 21.2R1-EVO and later versions;
21.3-EVO versions prior to 21.3R3-S1-EVO;
21.4-EVO versions prior to 21.4R3-EVO;
22.1-EVO versions prior to 22.1R1-S2-EVO, 22.1R2-EVO;
22.2-EVO versions prior to 22.2R2-EVO.

Affected

38 ranges · showing 25

Vendor	Product	Version range	Fixed in
juniper	junos	—	—
juniper	junos	—	—
juniper	junos	—	—
juniper	junos	—	—
juniper	junos	—	—
juniper	junos	—	—
juniper	junos	—	—
juniper	junos	—	—
juniper	junos	—	—
juniper	junos	—	—
juniper	junos	—	—
juniper	junos_os	—	—
juniper	junos_os_evolved	< 20.4	20.4
juniper	junos_os_evolved	—	—
juniper	junos_os_evolved	—	—
juniper	junos_os_evolved	—	—
juniper	junos_os_evolved	—	—
juniper	junos_os_evolved	—	—
juniper	junos_os_evolved	—	—
juniper	junos_os_evolved	—	—
juniper_networks	junos_os	>= 19.4R3-S4 < 19.4*	19.4*
juniper_networks	junos_os	>= 20.1R2 < 20.1*	20.1*
juniper_networks	junos_os	>= 20.2 < 20.2R3-S7	20.2R3-S7
juniper_networks	junos_os	>= 20.3 < 20.3R3-S5	20.3R3-S5
juniper_networks	junos_os	>= 20.4 < 20.4R3-S6	20.4R3-S6

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