SB2025010941 - Denial of service in Junos OS Evolved jtd
Published: January 9, 2025
Security Bulletin ID
SB2025010941
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) Missing Release of Resource after Effective Lifetime (CVE-ID: CVE-2025-21599)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to the Juniper Tunnel Driver (jtd) does not properly release memory when handling IPv6 packets. A remote attacker can send malformed IPv6 packets destined to the device and kernel memory to not be freed, resulting in a denial of service condition.
Remediation
Install update from vendor's website.