CVE-2023-45648
Description
Improper Input Validation vulnerability in Apache Tomcat.Tomcat from 11.0.0-M1 through 11.0.0-M11, from 10.1.0-M1 through 10.1.13, from 9.0.0-M1 through 9.0.81 and from 8.5.0 through 8.5.93 did not correctly parse HTTP trailer headers. A specially crafted, invalid trailer header could cause Tomcat to treat a single request as multiple requests leading to the possibility of request smuggling when behind a reverse proxy. Older, EOL versions may also be affected. Users are recommended to upgrade to version 11.0.0-M12 onwards, 10.1.14 onwards, 9.0.81 onwards or 8.5.94 onwards, which fix the issue.
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
SUSE Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Affected | — |
AlmaLinux Fixed 1 release
| Version | Status | Fixed in |
|---|---|---|
| 9 | Fixed | tomcat-jsp-2.3-api-9.0.62-37.el9_3.1.noarch.rpm |
Debian Fixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 10.1.14-1 |
| sid | Fixed | 10.1.14-1 |
| forky | Fixed | 10.1.14-1 |
| bullseye | Fixed | 9.0.43-2~deb11u7 |
| bookworm | Fixed | 10.1.6-1+deb12u1 |
Red Hat Fixed 2 releases
| Version | Status | Fixed in |
|---|---|---|
| 9 | Fixed | — |
| 8 | Fixed | — |
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| Maven | org.apache.tomcat:tomcat | >=11.0.0-M1,<11.0.0-M12 | 11.0.0-M12 |
| Maven | org.apache.tomcat:tomcat | >=10.1.0-M1,<10.1.14 | 10.1.14 |
| Maven | org.apache.tomcat:tomcat | >=9.0.0-M1,<9.0.81 | 9.0.81 |
| Maven | org.apache.tomcat:tomcat | >=8.5.0,<8.5.94 | 8.5.94 |
| Maven | org.apache.tomcat.embed:tomcat-embed-core | >=11.0.0-M1,<11.0.0-M12 | 11.0.0-M12 |
| Maven | org.apache.tomcat.embed:tomcat-embed-core | >=10.1.0-M1,<10.1.14 | 10.1.14 |
| Maven | org.apache.tomcat.embed:tomcat-embed-core | >=9.0.0-M1,<9.0.81 | 9.0.81 |
| Maven | org.apache.tomcat.embed:tomcat-embed-core | >=8.5.0,<8.5.94 | 8.5.94 |
References
- https://access.redhat.com/errata/RHSA-2024:0474
- https://www.suse.com/security/cve/CVE-2023-45648.html
- https://nvd.nist.gov/vuln/detail/CVE-2023-45648
- https://github.com/apache/tomcat/commit/59583245639d8c42ae0009f4a4a70464d3ea70a0
- https://github.com/apache/tomcat/commit/8ecff306507be8e4fd3adee1ae5de1ea6661a8f4
- https://github.com/apache/tomcat/commit/c83fe47725f7ae9ae213568d9039171124fb7ec6
- https://github.com/apache/tomcat/commit/eb5c094e5560764cda436362254997511a3ca1f6
- https://github.com/apache/tomcat
- https://lists.apache.org/thread/2pv8yz1pyp088tsxfb7ogltk9msk0jdp
- https://lists.debian.org/debian-lts-announce/2023/10/msg00020.html
- https://security.netapp.com/advisory/ntap-20231103-0007
- https://www.debian.org/security/2023/dsa-5521
- https://www.debian.org/security/2023/dsa-5522
- http://www.openwall.com/lists/oss-security/2023/10/10/10
- https://security-tracker.debian.org/tracker/CVE-2023-45648
- https://access.redhat.com/errata/RHSA-2024:0125
- https://bugzilla.redhat.com/2235370
- https://bugzilla.redhat.com/2243749
- https://bugzilla.redhat.com/2243751
- https://bugzilla.redhat.com/2243752
- https://errata.almalinux.org/8/ALSA-2024-0125.html
- https://errata.almalinux.org/9/ALSA-2024-0474.html
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.