Ubuntu Security Notice 6237-3 - USN-6237-1 fixed several vulnerabilities in curl. This update provides the corresponding updates for Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, and Ubuntu 18.04 LTS. Hiroki Kurosawa discovered that curl incorrectly handled validating certain certificate wildcards. A remote attacker could possibly use this issue to spoof certain website certificates using IDN hosts.
4aab60fd32ca66bfe087d6a307e821248cd1fc2c9b55fb50ae6a43d6c19b5921Debian Linux Security Advisory 5460-1 - It was discovered that Curl performed incorrect file path handling when saving cookies to files, which could lead to the creation or overwriting of files.
6e2f994d08396a20ab9a51c73c0d306c696b60020ddc145cb1423220ed1abd2bUbuntu Security Notice 6237-2 - USN-6237-1 fixed vulnerabilities in curl. The update caused a certificate wildcard handling regression on Ubuntu 22.04 LTS. This update fixes the problem. Hiroki Kurosawa discovered that curl incorrectly handled validating certain certificate wildcards. A remote attacker could possibly use this issue to spoof certain website certificates using IDN hosts. Hiroki Kurosawa discovered that curl incorrectly handled callbacks when certain options are set by applications. This could cause applications using curl to misbehave, resulting in information disclosure, or a denial of service. It was discovered that curl incorrectly handled saving cookies to files. A local attacker could possibly use this issue to create or overwrite files. This issue only affected Ubuntu 22.10, and Ubuntu 23.04.
e8dd9101762b6b8471b622e391d8e553d5793d3028a030db99705ea7fe07b3a9Ubuntu Security Notice 6237-1 - Hiroki Kurosawa discovered that curl incorrectly handled validating certain certificate wildcards. A remote attacker could possibly use this issue to spoof certain website certificates using IDN hosts. Hiroki Kurosawa discovered that curl incorrectly handled callbacks when certain options are set by applications. This could cause applications using curl to misbehave, resulting in information disclosure, or a denial of service.
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