Denial of service in Juniper Networks Junos OS on PTX Series
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2021-31367 |
| CWE-ID | CWE-401 |
| Exploitation vector | Local network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
Juniper Junos OS Operating systems & Components / Operating system PTX Series Hardware solutions / Firmware |
| Vendor | Juniper Networks, Inc. |
Security Bulletin
This security bulletin contains one low risk vulnerability.
1) Memory leak
EUVDB-ID: #VU57359
Risk: Low
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: CVE-2021-31367
CWE-ID:
CWE-401 - Missing release of memory after effective lifetime
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform DoS attack on the target system.
The vulnerability exists due memory leak in the Packet Forwarding Engine (PFE). A remote attacker on the local network can force the application to leak memory and perform denial of service attack.
MitigationInstall updates from vendor's website.
Vulnerable software versionsJuniper Junos OS: 18.4R1 - 21.1R1-S1
PTX Series: All versions
External linkshttp://kb.juniper.net/InfoCenter/index?page=content&id=JSA11229&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 local network (LAN).
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
