CVE-2019-17569
Description
The refactoring present in Apache Tomcat 9.0.28 to 9.0.30, 8.5.48 to 8.5.50 and 7.0.98 to 7.0.99 introduced a regression. The result of the regression was that invalid Transfer-Encoding headers were incorrectly processed leading to a possibility of HTTP Request Smuggling if Tomcat was located behind a reverse proxy that incorrectly handled the invalid Transfer-Encoding header in a particular manner. Such a reverse proxy is considered unlikely.
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
Debian Fixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 9.0.31-1 |
| sid | Fixed | 9.0.31-1 |
| forky | Fixed | 9.0.31-1 |
| bullseye | Fixed | 9.0.31-1 |
| bookworm | Fixed | 9.0.31-1 |
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| Maven | org.apache.tomcat.embed:tomcat-embed-core | >=7.0.98,<7.0.100 | 7.0.100 |
| Maven | org.apache.tomcat.embed:tomcat-embed-core | >=8.5.48,<8.5.51 | 8.5.51 |
| Maven | org.apache.tomcat.embed:tomcat-embed-core | >=9.0.28,<9.0.31 | 9.0.31 |
| Maven | org.apache.tomcat:tomcat | >=7.0.98,<7.0.100 | 7.0.100 |
| Maven | org.apache.tomcat:tomcat | >=8.5.48,<8.5.51 | 8.5.51 |
| Maven | org.apache.tomcat:tomcat | >=9.0.28,<9.0.31 | 9.0.31 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2019-17569
- https://lists.apache.org/thread.html/r7bc994c965a34876bd94d5ff15b4e1e30b6220a15eb9b47c81915b78@%3Ccommits.tomee.apache.org%3E
- https://lists.apache.org/thread.html/r88def002c5c78534674ca67472e035099fbe088813d50062094a1390%40%3Cannounce.tomcat.apache.org%3E
- https://lists.apache.org/thread.html/rc31cbabb46cdc58bbdd8519a8f64b6236b2635a3922bbeba0f0e3743@%3Ccommits.tomee.apache.org%3E
- https://lists.debian.org/debian-lts-announce/2020/03/msg00006.html
- https://security.netapp.com/advisory/ntap-20200327-0005
- https://www.debian.org/security/2020/dsa-4673
- https://www.debian.org/security/2020/dsa-4680
- https://www.oracle.com/security-alerts/cpujan2021.html
- https://www.oracle.com/security-alerts/cpujul2020.html
- https://www.oracle.com/security-alerts/cpuoct2020.html
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00025.html
- https://security-tracker.debian.org/tracker/CVE-2019-17569
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.