SB2021041504 - Memory leak when querying Aggregated Ethernet (AE) interface statistics in Junos OS
Published: April 15, 2021
Security Bulletin ID
SB2021041504
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Memory leak (CVE-ID: CVE-2021-0230)
CWE-ID: CWE-401 - Missing release of memory after effective lifetime
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The 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.
Remediation
Install update from vendor's website.