========================================================================== Ubuntu Security Notice USN-8308-1 May 26, 2026
dnsmasq vulnerability ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 26.04 LTS Summary: Dnsmasq could be made to crash or run programs if it received specially crafted network traffic. Software Description: - dnsmasq: Small caching DNS proxy and DHCP/TFTP server Details: It was discovered that Dnsmasq incorrectly handled BOOTREPLY packets when configured with the --dhcp-split-relay option. A remote attacker could use this issue to cause Dnsmasq to crash, resulting in a denial of service, or possibly execute arbitrary code. Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 26.04 LTS dnsmasq 2.92-1ubuntu0.3 In general, a standard system update will make all the necessary changes. References: https://ubuntu.com/security/notices/USN-8308-1 CVE-2026-6507 Package Information: https://launchpad.net/ubuntu/+source/dnsmasq/2.92-1ubuntu0.3
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