USN-8951-1: c-ares vulnerabilities

It was discovered that c-ares incorrectly parsed certain SOA replies. A remote attacker could possibly use this issue to cause c-ares to crash, resulting in a denial of service. This issue only affected Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. (CVE-2020-22217) It was discovered that c-ares incorrectly handled certain sortlist strings. A remote attacker could possibly use this issue to cause c-ares to crash, resulting in a denial of service, or execute arbitrary code. This issue only affected Ubuntu 16.04 LTS. (CVE-2022-4904) It was discovered that c-ares did not properly limit DNS compression p…

Ubuntu Security Noticesで読む

2026/10/22 03:20、Ubuntu Security Noticesが「USN-8951-1: c-ares vulnerabilities」を公開しました (種別: 脆弱性アドバイザリ)。関連する技術: Ubuntu、Linux。CVE: CVE-2020-22217、CVE-2022-4904。