USN-8598-1: rsyslog vulnerabilities
Details It was discovered that rsyslog incorrectly handled regex-based TCP framing in the imptcp module. A remote attacker could possibly use this issue to cause rsyslog to crash, resulting in a denial of service. It was discovered that rsyslog incorrectly handled oversized RFC5424 structured data in the mmpstrucdata module. A remote attacker could possibly use this issue to cause rsyslog to crash, resulting in a denial of service. (CVE-2026-61548) It was discovered that rsyslog incorrectly handled regex-based TCP framing in the imptcp module. A remote attacker could possibly use this issue to cause rsyslog to crash, resulting in a denial of service. It was discovered that rsyslog incorrectly handled oversized RFC5424 structured data in the mmpstrucdata module. A remote attacker could possibly use this issue to cause rsyslog to crash, resulting in a denial of service. (CVE-2026-61548) The problem can be corrected by updating your system to the following package versions: Reduce your security exposure 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.
ubuntu.comJul 23, 2026extracted