Vulnerability identifier: #VU59594
Vulnerability risk: Medium
CVSSv3.1: 5.7 [CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-388
Exploitation vector: Local network
Exploit availability: No
Vulnerable software:
Juniper Junos OS
Operating systems & Components /
Operating system
Vendor: Juniper Networks, Inc.
Description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to improper error handling in the subscriber management daemon (smgd). In a subscriber management / broadband edge environment if a single session group configuration contains dual-stack and a pp0 interface, smgd will crash and restart every time a PPPoE client sends a specific message.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
Juniper Junos OS: 20.3 - 20.3R3-S1, 20.1 - 20.1R3-S2, 19.2 - 19.2R3-S3, 18.4 - 18.4R3-S9, 21.1 - 21.1R2-S2, 19.1 - 19.1R3-S6, 20.2 - 20.2R3-S2, 19.3 - 19.3R3-S3, 21.2R1 - 21.2R1-S2, 19.4 - 19.4R3-S4, 20.4 - 20.4R2-S2
External links
http://kb.juniper.net/InfoCenter/index?page=content&id=JSA11268&cat=SIRT_1&actp=LIST
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.