| Name | CVE-2023-46218 |
| 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-3692-1, DSA-5587-1, ELA-1068-1 |
| Debian Bugs | 1057646 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| curl (PTS) | jessie, jessie (lts) | 7.38.0-4+deb8u28 | fixed |
| stretch (security) | 7.52.1-5+deb9u16 | vulnerable | |
| stretch (lts), stretch | 7.52.1-5+deb9u22 | fixed | |
| buster, buster (lts) | 7.64.0-4+deb10u10 | fixed | |
| buster (security) | 7.64.0-4+deb10u9 | fixed | |
| bullseye | 7.74.0-1.3+deb11u13 | fixed | |
| bullseye (security) | 7.74.0-1.3+deb11u14 | fixed | |
| bookworm | 7.88.1-10+deb12u8 | fixed | |
| bookworm (security) | 7.88.1-10+deb12u5 | fixed | |
| sid, trixie | 8.11.0-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| curl | source | jessie | (not affected) | |||
| curl | source | stretch | 7.52.1-5+deb9u21 | ELA-1068-1 | ||
| curl | source | buster | 7.64.0-4+deb10u8 | DLA-3692-1 | ||
| curl | source | bullseye | 7.74.0-1.3+deb11u11 | DSA-5587-1 | ||
| curl | source | bookworm | 7.88.1-10+deb12u5 | DSA-5587-1 | ||
| curl | source | (unstable) | 8.5.0-1 | 1057646 |
Introduced by: https://github.com/curl/curl/commit/e77b5b7453c1e8ccd7ec0816890d98e2f392e465 (curl-7_46_0)
Fixed by: https://github.com/curl/curl/commit/2b0994c29a721c91c572cff7808c572a24d251eb (curl-8_5_0)
https://curl.se/docs/CVE-2023-46218.html
[jessie] - curl <not-affected> (libpsl support introduced in 7.46.0)