> USN-8588-1: Gawk vulnerabilities

It was discovered that Gawk incorrectly handled memory when processing input using the getline redirection. An attacker could possibly use this issue to cause a denial of service. (CVE-2026-40467) It was discovered that Gawk incorrectly handled certain integer calculations when allocating memory. An attacker could possibly use this issue to cause a denial of service or overwrite heap memory with attacker-controlled data. (CVE-2026-40468) It was discovered that Gawk incorrectly handled certain integer calculations when performing substitutions. An attacker could possibly use this issue to cause a denial of service. (CVE-2026-40469) It was discovered that Gawk incorrectly handled memory when reading directory entries. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. This issue only affected Ubuntu 26.04 LTS. (CVE-2026-40553)