USN-7370-1: SmartDNS vulnerabilities

25 March 2025

Several security issues were fixed in SmartDNS.

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Releases

Packages

  • smartdns - local DNS server to obtain the fastest IP for the best experience

Details

It was discovered that SmartDNS did not correctly align certain objects in
memory, leading to undefined behaviour. An attacker could possibly use this
issue to cause a denial of service or execute arbitrary code. This issue
only affected Ubuntu 22.04 LTS. (CVE-2024-24198, CVE-2024-24199)

It was discovered that SmartDNS did not correctly handle certain inputs,
which could lead to an integer overflow. A remote attacker could possibly
use this issue to cause a denial of service. This issue only affected
Ubuntu 24.04 LTS and Ubuntu 24.10. (CVE-2024-42643)

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Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

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Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 24.10
Ubuntu 24.04
Ubuntu 22.04

In general, a standard system update will make all the necessary changes.

References

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Further reading