SB2025041471 - Buffer access with incorrect length value in Juniper Junos OS
Published: April 14, 2025
Security Bulletin ID
SB2025041471
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) Buffer access with incorrect length value (CVE-ID: CVE-2025-21591)
The vulnerability allows a remote non-authenticated attacker to a crash the entire system.
The vulnerability exists due to buffer access with incorrect length value error in the jdhcpd daemon. A remote non-authenticated attacker can send a DHCP packet with a malformed DHCP option to cause jdhcp to crash creating a Denial of Service (DoS) condition.
Remediation
Install update from vendor's website.