This security advisory describes one medium risk vulnerability.
Exploit availability: NoDescription
The vulnerability allows a remote attacker to perform a DoS attack.
The vulnerability exists due to access to an uninitialized pointer in Regular expressions (REGEX) engine when processing valid BGP update packets from BGP peers. A remote attacker can certain valid BGP update packets and perform a denial of service (DoS) attack.
Install updates from vendor's website.
Juniper Networks Junos OS Evolved
Junos OS Evolved: before 19.4R2-S2-EVO, 20.1R1-S2-EVO, 20.1R2-S1-EVO, 20.2R1-EVOCPE
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.