Denial of service in Juniper Networks Junos OS SRX300 Series, SRX500 Series, SRX1500 and SRX5000 Series with SPC2
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2021-31364 |
| CWE-ID | CWE-754 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
Juniper Junos OS Operating systems & Components / Operating system SRX300 Hardware solutions / Routers & switches, VoIP, GSM, etc SRX500 Hardware solutions / Routers & switches, VoIP, GSM, etc SRX1500 Hardware solutions / Routers & switches, VoIP, GSM, etc SRX5000 Hardware solutions / Routers & switches, VoIP, GSM, etc |
| Vendor | Juniper Networks, Inc. |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
1) Improper Check for Unusual or Exceptional Conditions
EUVDB-ID: #VU57360
Risk: Medium
CVSSv3.1: 5.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-31364
CWE-ID:
CWE-754 - Improper Check for Unusual or Exceptional Conditions
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to improper check for unusual or exceptional conditions in the flow daemon (flowd). A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.
MitigationInstall updates from vendor's website.
Vulnerable software versionsJuniper Junos OS: 17.4R1 - 20.4R1-S1
SRX300: All versions
SRX500: All versions
SRX1500: All versions
SRX5000: All versions
External linkshttp://kb.juniper.net/InfoCenter/index?page=content&id=JSA11226&cat=SIRT_1&actp=LIST
Q & A
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.
