CVE-2022-27780

Affected: https://github.com/curl/curl, haxx curl, netapp solidfire_\&_hci_storage_node, netapp ontap_9, netapp solidfire_\&_hci_management_node, netapp hci_bootstrap_os

The curl URL parser wrongly accepts percent-encoded URL separators like '/'when decoding the host name part of a URL, making it a *different* URL usingthe wrong host name when it is later retrieved.For example, a URL like `http://example.com%2F127.0.0.1/`, would be allowed bythe parser and get transposed into `http://example.com/127.0.0.1/`. This flawcan be used to circumvent filters, checks and more.

USN-5412-1 — curl vulnerabilities

Affected: Ubuntu:18.04:LTS: curl, Ubuntu:20.04:LTS: curl, Ubuntu:22.04:LTS: curl

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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CVE-2022-27780

USN-5412-1 — curl vulnerabilities