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Red Hat: CVE-2023-46218: curl: information disclosure by exploiting a mixed case flaw (Multiple Advisories)

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Red Hat: CVE-2023-46218: curl: information disclosure by exploiting a mixed case flaw (Multiple Advisories)

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:P/I:N/A:N)
Published
12/07/2023
Created
01/27/2024
Added
01/26/2024
Modified
09/03/2024

Description

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.

Solution(s)

  • redhat-upgrade-curl
  • redhat-upgrade-curl-debuginfo
  • redhat-upgrade-curl-debugsource
  • redhat-upgrade-curl-minimal
  • redhat-upgrade-curl-minimal-debuginfo
  • redhat-upgrade-libcurl
  • redhat-upgrade-libcurl-debuginfo
  • redhat-upgrade-libcurl-devel
  • redhat-upgrade-libcurl-minimal
  • redhat-upgrade-libcurl-minimal-debuginfo

References

  • CVE-2023-46218
  • RHSA-2024:0428
  • RHSA-2024:0434
  • RHSA-2024:0452
  • RHSA-2024:0585
  • RHSA-2024:1129
  • RHSA-2024:1601
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