Memory leak when querying Aggregated Ethernet (AE) interface statistics in Junos OS
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2021-0230 |
| CWE-ID | CWE-401 |
| Exploitation vector | Local |
| Public exploit | N/A |
| Vulnerable software Subscribe |
Juniper Junos OS Operating systems & Components / Operating system |
| Vendor | Juniper Networks, Inc. |
Security Bulletin
This security bulletin contains one low risk vulnerability.
1) Memory leak
EUVDB-ID: #VU52227
Risk: Low
CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-0230
CWE-ID:
CWE-401 - Missing release of memory after effective lifetime
Exploit availability: No
DescriptionThe vulnerability allows a local user to perform DoS attack on the target system.
The vulnerability exists due memory leak On Juniper Networks Junos OS platforms with link aggregation (lag) configured. A local user can execute any operation that fetches Aggregated Ethernet (AE) interface statistics, including but not limited to SNMP GET requests, and trigger a slow kernel memory leak.
MitigationInstall updates from vendor's website.
Vulnerable software versionsJuniper Junos OS: 17.3 - 20.4
External linkshttp://kb.juniper.net/InfoCenter/index?page=content&id=JSA11125&cat=SIRT_1&actp=LIST
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
