SB2025032517 - Ubuntu update for smartdns

Description

This security bulletin contains information about 3 secuirty vulnerabilities.

1) Input validation error (CVE-ID: CVE-2024-24198)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input in src/util.c. A remote attacker can pass specially crafted IP address in the DNS response to the server and perform a denial of service (DoS) attack.

2) Input validation error (CVE-ID: CVE-2024-24199)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input in src/dns.c. A remote attacker can pass specially crafted DNS response to the server and perform a denial of service (DoS) attack.

3) Integer overflow (CVE-ID: CVE-2024-42643)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to integer overflow in fast_ping.c. A remote attacker can a specially crafted DNS response to the server, trigger an integer overflow and perform a denial of service (DoS) attack.

Remediation

Install update from vendor's website.

References

• https://ubuntu.com/security/notices/USN-7370-1