SB2025110722 - Fedora 43 update for runc
Published: November 7, 2025
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 3 secuirty vulnerabilities.
1) Improper Encoding or Escaping of Output (CVE-ID: CVE-2025-58189)
The vulnerability allows a remote attacker to perform spoofing attacks.
The vulnerability exists due to missing sanitization of input data when the Conn.Handshake fails during ALPN negotiation in crypto/tls. A remote attacker can pass specially crafted input via an error message and influence the application behavior, leading to a potential spoofing attack.
2) Resource exhaustion (CVE-ID: CVE-2025-61723)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists in encoding/pem due to application does not properly control consumption of internal resources when parsing untrusted PEM input. A remote attacker can trigger CPU exhaustion and perform a denial of service (DoS) attack.
3) Input validation error (CVE-ID: CVE-2025-58188)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists in crypto/x509 due to an error when validating certificate chains which contain DSA public keys. A remote attacker can pass a specially crafted certificate to the application and crash it.
Remediation
Install update from vendor's website.