SB2021011540 - Denial of service in Junos OS Evolved
Published: January 15, 2021
Security Bulletin ID
SB2021011540
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Access of Uninitialized Pointer (CVE-ID: CVE-2021-0209)
The vulnerability allows a remote attacker to perform a DoS attack.
The vulnerability exists due to access to an uninitialized pointer in Regular expressions (REGEX) engine when processing valid BGP update packets from BGP peers. A remote attacker can certain valid BGP update packets and perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.