SB2025050661 - Fedora 40 update for dnsdist
Published: May 6, 2025
Security Bulletin ID
SB2025050661
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) Double free (CVE-ID: CVE-2025-30194)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a double free error when DNSdist is configured to provide DoH via the nghttp2 provider. A remote attacker can initiate a crafted DoH exchange that triggers an illegal memory access and perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.