Ubuntu Security Update USN-5412-1: curl vulnerabilities

[LinuxBot]

Axel Chong discovered that curl incorrectly handled percent-encoded URL separators. A remote attacker could possibly use this issue to trick curl into using the wrong URL and bypass certain checks or filters. This issue only affected Ubuntu 22.04 LTS. (CVE-2022-27780) Florian Kohnhuser discovered that curl incorrectly handled returning a TLS server's certificate chain details. A remote attacker could possibly use this issue to cause curl to stop responding, resulting in a denial of service. (CVE-2022-27781) Harry Sintonen discovered that curl incorrectly reused a previous connection when certain options had been changed, contrary to expectations. (CVE-2022-27782)

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