SB2023071603 - Denial of service in Junos OS and Junos OS Evolved l2cpd
Published: July 16, 2023
Security Bulletin ID
SB2023071603
CSH 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 vulnerability.
1) Improper handling of exceptional conditions (CVE-ID: CVE-2023-36849)
CWE-ID: CWE-755 - Improper Handling of Exceptional Conditions
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to improper handling of errors in the Layer-2 control protocols daemon (l2cpd). A remote attacker can send a malformed LLDP packet to the l2cpd daemon and perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.