[USN-6535-1] curl vulnerabilities

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==========================================================================
Ubuntu Security Notice USN-6535-1
December 06, 2023

curl vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 23.10
- Ubuntu 23.04
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS

Summary:

Several security issues were fixed in curl.

Software Description:
- curl: HTTP, HTTPS, and FTP client and client libraries

Details:

Harry Sintonen discovered that curl incorrectly handled mixed case cookie
domains. A remote attacker could possibly use this issue to set cookies
that get sent to different and unrelated sites and domains.
(CVE-2023-46218)

Maksymilian Arciemowicz discovered that curl incorrectly handled long file
names when saving HSTS data. This could result in curl losing HSTS data,
and subsequent requests to a site would be done without it, contrary to
expectations. This issue only affected Ubuntu 23.04 and Ubuntu 23.10.
(CVE-2023-46219)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 23.10:
curl 8.2.1-1ubuntu3.2
libcurl3-gnutls 8.2.1-1ubuntu3.2
libcurl3-nss 8.2.1-1ubuntu3.2
libcurl4 8.2.1-1ubuntu3.2

Ubuntu 23.04:
curl 7.88.1-8ubuntu2.4
libcurl3-gnutls 7.88.1-8ubuntu2.4
libcurl3-nss 7.88.1-8ubuntu2.4
libcurl4 7.88.1-8ubuntu2.4

Ubuntu 22.04 LTS:
curl 7.81.0-1ubuntu1.15
libcurl3-gnutls 7.81.0-1ubuntu1.15
libcurl3-nss 7.81.0-1ubuntu1.15
libcurl4 7.81.0-1ubuntu1.15

Ubuntu 20.04 LTS:
curl 7.68.0-1ubuntu2.21
libcurl3-gnutls 7.68.0-1ubuntu2.21
libcurl3-nss 7.68.0-1ubuntu2.21
libcurl4 7.68.0-1ubuntu2.21

In general, a standard system update will make all the necessary changes.

References:
https://ubuntu.com/security/notices/USN-6535-1
CVE-2023-46218, CVE-2023-46219

Package Information:
https://launchpad.net/ubuntu/+source/curl/8.2.1-1ubuntu3.2
https://launchpad.net/ubuntu/+source/curl/7.88.1-8ubuntu2.4
https://launchpad.net/ubuntu/+source/curl/7.81.0-1ubuntu1.15
https://launchpad.net/ubuntu/+source/curl/7.68.0-1ubuntu2.21