SB2023101750 - Race condition in Junos OS jkdsd
Published: October 17, 2023
Security Bulletin ID
SB2023101750
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) Time-of-check Time-of-use (TOCTOU) Race Condition (CVE-ID: CVE-2023-44188)
CWE-ID: CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote authenticated user to perform a denial of service (DoS) attack.
The vulnerability exists due to a race condition in telemetry processing within the Junos Kernel Debugging Streaming Daemon (jkdsd) process. A remote authenticated user can flood the system with multiple telemetry requests and perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.