CVE-2023-46218

This flaw allows a malicious HTTP server to set "super cookies" in curl that are then passed back to more origins than what is otherwise allowed or possible. This allows a site to set cookies that then would get sent to different and unrelated sites and domains.

It could do this by exploiting a mixed case flaw in curl's function that verifies a given cookie domain against the Public Suffix List (PSL). For example a cookie could be set with domain=co.UK when the URL used a lower case hostname curl.co.uk, even though co.uk is listed as a PSL domain.

This flaw allows a malicious HTTP server to set "super cookies" in curl that are then passed back to more origins than what is otherwise allowed or possible. This allows a site to set cookies that then would get sent to different and unrelated sites and domains.

It could do this by exploiting a mixed case flaw in curl's function that verifies a given cookie domain against the Public Suffix List (PSL). For example a cookie could be set with domain=co.UK when the URL used a lower case hostname curl.co.uk, even though co.uk is listed as a PSL domain.

This flaw allows a malicious HTTP server to set "super cookies" in curl that are then passed back to more origins than what is otherwise allowed or possible. This allows a site to set cookies that then would get sent to different and unrelated sites and domains.

It could do this by exploiting a mixed case flaw in curl's function that verifies a given cookie domain against the Public Suffix List (PSL). For example a cookie could be set with domain=co.UK when the URL used a lower case hostname curl.co.uk, even though co.uk is listed as a PSL domain.

This flaw allows a malicious HTTP server to set "super cookies" in curl that are then passed back to more origins than what is otherwise allowed or possible. This allows a site to set cookies that then would get sent to different and unrelated sites and domains.

It could do this by exploiting a mixed case flaw in curl's function that verifies a given cookie domain against the Public Suffix List (PSL). For example a cookie could be set with domain=co.UK when the URL used a lower case hostname curl.co.uk, even though co.uk is listed as a PSL domain.

This flaw allows a malicious HTTP server to set "super cookies" in curl that are then passed back to more origins than what is otherwise allowed or possible. This allows a site to set cookies that then would get sent to different and unrelated sites and domains.

It could do this by exploiting a mixed case flaw in curl's function that verifies a given cookie domain against the Public Suffix List (PSL). For example a cookie could be set with domain=co.UK when the URL used a lower case hostname curl.co.uk, even though co.uk is listed as a PSL domain.

This flaw allows a malicious HTTP server to set "super cookies" in curl that are then passed back to more origins than what is otherwise allowed or possible. This allows a site to set cookies that then would get sent to different and unrelated sites and domains. It could do this by exploiting a mixed case flaw in curl's function that verifies a given cookie domain against the Public Suffix List (PSL). For example a cookie could be set with domain=co.UK when the URL used a lower case hostname curl.co.uk, even though co.uk is listed as a PSL domain.

This flaw allows a malicious HTTP server to set "super cookies" in curl that are then passed back to more origins than what is otherwise allowed or possible. This allows a site to set cookies that then would get sent to different and unrelated sites and domains.

It could do this by exploiting a mixed case flaw in curl's function that verifies a given cookie domain against the Public Suffix List (PSL). For example a cookie could be set with domain=co.UK when the URL used a lower case hostname curl.co.uk, even though co.uk is listed as a PSL domain.

cURL is a computer software project providing a library (libcurl) and command-line tool (curl) for transferring data using various protocols.

Security Fix(es):

This flaw allows a malicious HTTP server to set "super cookies" in curl that are then passed back to more origins than what is otherwise allowed or possible. This allows a site to set cookies that then would get sent to different and unrelated sites and domains.

It could do this by exploiting a mixed case flaw in curl's function that verifies a given cookie domain against the Public Suffix List (PSL). For example a cookie could be set with domain=co.UK when the URL used a lower case hostname curl.co.uk, even though co.uk is listed as a PSL domain. (CVE-2023-46218)

This flaw allows a malicious HTTP server to set "super cookies" in curl that are then passed back to more origins than what is otherwise allowed or possible. This allows a site to set cookies that then would get sent to different and unrelated sites and domains. It could do this by exploiting a mixed case flaw in curl's function that verifies a given cookie domain against the Public Suffix List (PSL). For example a cookie could be set with domain=co.UK when the URL used a lower case hostname curl.co.uk, even though co.uk is listed as a PSL domain.

The curl packages provide the libcurl library and the curl utility for downloading files from servers using various protocols, including HTTP, FTP, and LDAP.

Security Fix(es):

• curl: information disclosure by exploiting a mixed case flaw (CVE-2023-46218)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

The curl packages provide the libcurl library and the curl utility for downloading files from servers using various protocols, including HTTP, FTP, and LDAP.

Security Fix(es):

• curl: information disclosure by exploiting a mixed case flaw (CVE-2023-46218)
• curl: more POST-after-PUT confusion (CVE-2023-28322)
• curl: cookie injection with none file (CVE-2023-38546)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Bug Fix(es):

• libssh (curl sftp) not trying password auth (BZ#2240033)
• libssh: cap SFTP packet size sent (AlmaLinux-5485)

• SECURITY UPDATE: Insecure cookie domain verification
  • debian/patches/CVE-2023-46218.patch: lowercase domain names before PSL checks to fix cookie domain validation
  • CVE-2023-46218

• SECURITY UPDATE: Improper cookie domain verification allows malicious HTTP server to set 'super cookies' in package
  • debian/control: Build-Depends: add libpsl-dev
  • debian/patches/CVE-2023-46218.patch: Lowercase domain names before PSL checks to ensure proper comparison
  • CVE-2023-46218

• CVE-2023-46218: lowercase the domain names before PSL checks
• Add verify cookie PSL mixed case test

• CVE-2023-46218: fix cookie validation to prevent passing cookies to unrelated sites

• CVE-2023-46218: fix cookie validation to prevent passing cookies to unrelated sites

This flaw allows a malicious HTTP server to set "super cookies" in curl that are then passed back to more origins than what is otherwise allowed or possible. This allows a site to set cookies that then would get sent to different and unrelated sites and domains.

It could do this by exploiting a mixed case flaw in curl's function that verifies a given cookie domain against the Public Suffix List (PSL). For example a cookie could be set with domain=co.UK when the URL used a lowercase hostname curl.co.uk, even though co.uk is listed as a PSL domain.

The updated Curl Mageia 8 and 9 packages contain a patch to fix CVE-2023-46218 The Mageia 9 packages als contain a patch to fix CVE-2023-46219. Curl in Mageia 8 does not need that patch because it is not affected by that issue.

These are all security issues fixed in the curl-8.5.0-1.1 package on the GA media of openSUSE Tumbleweed.

The curl packages provide the libcurl library and the curl utility for downloading files from servers using various protocols, including HTTP, FTP, and LDAP.

Security Fix(es):

• curl: information disclosure by exploiting a mixed case flaw (CVE-2023-46218)

• curl: more POST-after-PUT confusion (CVE-2023-28322)

• curl: cookie injection with none file (CVE-2023-38546)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Bug Fix(es):

• libssh (curl sftp) not trying password auth (BZ#2240033)

• libssh: cap SFTP packet size sent (Rocky Linux-5485)

This update for curl fixes the following issues:

• CVE-2023-38546: Fixed a cookie injection with none file (bsc#1215889).
• CVE-2023-46218: Fixed cookie mixed case PSL bypass (bsc#1217573).

This update for curl fixes the following issues:

• CVE-2023-46218: Fixed cookie mixed case PSL bypass (bsc#1217573).
• CVE-2023-46219: HSTS long file name clears contents (bsc#1217574).

This update for curl fixes the following issues:

• CVE-2023-46218: Fixed cookie mixed case PSL bypass (bsc#1217573).
• CVE-2023-46219: HSTS long file name clears contents (bsc#1217574).

This update for curl fixes the following issues:

• CVE-2023-46218: Fixed cookie mixed case PSL bypass (bsc#1217573).

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)

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.