==========================================================================
Ubuntu Security Notice USN-6641-1
February 19, 2024

curl vulnerability
==========================================================================

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

- Ubuntu 18.04 LTS (Available with Ubuntu Pro)
- Ubuntu 16.04 LTS (Available with Ubuntu Pro)

Summary:

curl could be made to set cookies that would bypass PSL checks.

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.

Update instructions:

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

Ubuntu 18.04 LTS (Available with Ubuntu Pro):
   curl                            7.58.0-2ubuntu3.24+esm3
   libcurl3-gnutls            7.58.0-2ubuntu3.24+esm3
   libcurl3-nss                7.58.0-2ubuntu3.24+esm3
   libcurl4                       7.58.0-2ubuntu3.24+esm3

Ubuntu 16.04 LTS (Available with Ubuntu Pro):
   curl                            7.47.0-1ubuntu2.19+esm11
   libcurl3                       7.47.0-1ubuntu2.19+esm11
   libcurl3-gnutls            7.47.0-1ubuntu2.19+esm11
   libcurl3-nss                7.47.0-1ubuntu2.19+esm11

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

References:
   https://ubuntu.com/security/notices/USN-6641-1
   CVE-2023-46218

Ubuntu 6641-1: curl vulnerability

February 19, 2024
curl could be made to set cookies that would bypass PSL checks.

Summary

A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 18.04 LTS (Available with Ubuntu Pro) - Ubuntu 16.04 LTS (Available with Ubuntu Pro) Summary: curl could be made to set cookies that would bypass PSL checks. 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.

Update Instructions

The problem can be corrected by updating your system to the following package versions: Ubuntu 18.04 LTS (Available with Ubuntu Pro):   curl                            7.58.0-2ubuntu3.24+esm3   libcurl3-gnutls            7.58.0-2ubuntu3.24+esm3   libcurl3-nss                7.58.0-2ubuntu3.24+esm3   libcurl4                       7.58.0-2ubuntu3.24+esm3 Ubuntu 16.04 LTS (Available with Ubuntu Pro):   curl                            7.47.0-1ubuntu2.19+esm11   libcurl3                       7.47.0-1ubuntu2.19+esm11   libcurl3-gnutls            7.47.0-1ubuntu2.19+esm11   libcurl3-nss                7.47.0-1ubuntu2.19+esm11 In general, a standard system update will make all the necessary changes.

References

  https://ubuntu.com/security/notices/USN-6641-1

  CVE-2023-46218

Severity
Ubuntu Security Notice USN-6641-1

Package Information

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