Critical Vulnerabilities in Socat Affecting Ubuntu 24.04 LTS

Two significant vulnerabilities were discovered in the socat utility, affecting Ubuntu 24.04 LTS. CVE-2026-56123 allows remote attackers to execute arbitrary code via an improperly handled SOCKS5 proxy server parser. CVE-2024-54661 permits local attackers to overwrite arbitrary files due to incorrect handling of a sample script. Both vulnerabilities pose serious risks, especially to systems running the affected Ubuntu version. The issues were published on June 25, 2026, and December 4, 2024, respectively. Users are advised to update their systems to mitigate these risks. Ubuntu Pro offers ten-year security coverage for affected packages. A standard system update will apply the necessary fixes.

Key Points: • CVE-2026-56123 enables remote code execution via SOCKS5 proxy parser flaws. • CVE-2024-54661 allows local file overwrites on Ubuntu 24.04 LTS. • Immediate system updates are recommended to mitigate these vulnerabilities.