SB2021072021 - Out-of-bounds read in Juniper Networks Junos OS and Junos OS Evolved
Published: July 20, 2021
Security Bulletin ID
SB2021072021
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Adjecent network
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Out-of-bounds read (CVE-ID: CVE-2021-0277)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary condition in the processing of specially crafted LLDP frames by the Layer 2 Control Protocol Daemon (l2cpd). A remote attacker on the local network can trigger out-of-bounds read error and cause a denial of service condition on the system.
Remediation
Install update from vendor's website.