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.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
Fedora Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| 39 | Affected | — |
SUSE Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Affected | — |
Debian Fixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 8.5.0-1 |
| sid | Fixed | 8.5.0-1 |
| forky | Fixed | 8.5.0-1 |
| bullseye | Fixed | 7.74.0-1.3+deb11u11 |
| bookworm | Fixed | 7.88.1-10+deb12u5 |
Red Hat Fixed 2 releases
| Version | Status | Fixed in |
|---|---|---|
| 9 | Fixed | — |
| 8 | Fixed | — |
Rocky Linux Fixed 1 release
| Version | Status | Fixed in |
|---|---|---|
| 8 | Fixed | — |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| haxx | curl | {"startIncluding":"7.46.0","endIncluding":"8.4.0"} | |
References
- https://access.redhat.com/errata/RHSA-2024:1129
- https://curl.se/docs/CVE-2023-46218.html
- https://hackerone.com/reports/2212193
- https://lists.debian.org/debian-lts-announce/2023/12/msg00015.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3ZX3VW67N4ACRAPMV2QS2LVYGD7H2MVE/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UOGXU25FMMT2X6UUITQ7EZZYMJ42YWWD/
- https://security.netapp.com/advisory/ntap-20240125-0007/
- https://www.debian.org/security/2023/dsa-5587
- https://cert-portal.siemens.com/productcert/html/ssa-082556.html
- https://cert-portal.siemens.com/productcert/html/ssa-093430.html
- https://cert-portal.siemens.com/productcert/html/ssa-202008.html
- https://cert-portal.siemens.com/productcert/html/ssa-331112.html
- https://errata.rockylinux.org/RLSA-2024:1601
- https://security-tracker.debian.org/tracker/CVE-2023-46218
- https://www.suse.com/security/cve/CVE-2023-46218.html
- https://bugzilla.redhat.com/2252030
- https://errata.almalinux.org/9/ALSA-2024-1129.html
- https://access.redhat.com/errata/RHSA-2024:1601
- https://bugzilla.redhat.com/2196793
- https://bugzilla.redhat.com/2241938
- https://errata.almalinux.org/8/ALSA-2024-1601.html
CWEs
CWE-178
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.