Vulnerability identifier: #VU59562
Vulnerability risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/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-667
Exploitation vector: 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 attack (DoS).
The vulnerability exists due to improper locking in the SIP ALG of Juniper Networks Junos OS on MX Series and SRX Series. An non-authenticated attacker can send specially crafted traffic to the system to cause a flowprocessing daemon (flowd) crash.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
Juniper Junos OS: 21.3R1 - 21.3R1-S2, 21.1 - 21.1R2-S1, 20.4 - 20.4R3, 21.2R1 - 21.2R1-S1
External links
http://kb.juniper.net/InfoCenter/index?page=content&id=JSA11281&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 Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.