Vulnerability identifier: #VU78263
Vulnerability risk: Low
CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-908
Exploitation vector: Local
Exploit availability: No
Vulnerable software:
Junos OS Evolved
Operating systems & Components /
Operating system
Juniper Junos OS
Operating systems & Components /
Operating system
Vendor: Juniper Networks, Inc.
Description
The vulnerability allows a local user to perform a denial of service (Dos) attack.
The vulnerability exists due to usage of uninitialized resources in a Multicast only Fast Reroute (MoFRR) scenario within the routing protocol daemon (rpd). A local user can trigger an uninitialized usage of resources by executing a specific low privileged CLI command and crash the rpd daemon.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
Junos OS Evolved: 21.3-EVO - 21.3R3-EVO, 20.4 - 20.4R3-S5-EVO, 20.4R2-S2-EVO, 22.1-EVO - 22.1R1-S1-EVO, 22.2-EVO - 22.2R1-S1-EVO, 21.4R1-EVO - 21.4R2-S2-EVO
Juniper Junos OS: 20.2 - 20.2R3-S6, 20.4 - 20.4R3-S5, 21.1 - 21.1R3-S3, 22.2R1 - 22.2R1-S2, 21.3R1 - 21.3R3, 20.3 - 20.3R3-S4, 21.4R1 - 21.4R2-S2, 22.1R1 - 22.1R1-S1, 19.4 - 19.4R3-S8, 19.4R1 - 19.4R1-S4, 21.2R1 - 21.2R3-S1
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.