GHSA-qxf4-chvg-4r8r
Potential HTTP request smuggling in Apache Tomcat
At a glance
- Published
- Updated
- CVE
- CVE-2020-1935
- Aliases
- BIT-tomcat-2020-1935
- CVSS_V3
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
Description
In Apache Tomcat 9.0.0.M1 to 9.0.30, 8.5.0 to 8.5.50 and 7.0.0 to 7.0.99 the HTTP header parsing code used an approach to end-of-line parsing that allowed some invalid HTTP headers to be parsed as valid. This led 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.
Affected packages
| Package | Versions |
|---|---|
| Maven · org.apache.tomcat.embed:tomcat-embed-core | introduced 0, fixed 7.0.100 |
| Maven · org.apache.tomcat.embed:tomcat-embed-core | introduced 8.0.0, fixed 8.5.51 |
| Maven · org.apache.tomcat.embed:tomcat-embed-core | introduced 9.0.0, fixed 9.0.31 |
| Maven · org.apache.tomcat:tomcat | introduced 0, fixed 7.0.100 |
| Maven · org.apache.tomcat:tomcat | introduced 8.0.0, fixed 8.5.51 |
| Maven · org.apache.tomcat:tomcat | introduced 9.0.0, fixed 9.0.31 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2020-1935 ADVISORY
- https://www.oracle.com/security-alerts/cpuoct2020.html WEB
- https://www.oracle.com/security-alerts/cpujul2020.html WEB
- https://www.oracle.com/security-alerts/cpujan2021.html WEB
- https://www.debian.org/security/2020/dsa-4680 WEB
- https://www.debian.org/security/2020/dsa-4673 WEB
- https://usn.ubuntu.com/4448-1 WEB
- https://security.netapp.com/advisory/ntap-20200327-0005 WEB
- https://lists.debian.org/debian-lts-announce/2020/05/msg00026.html WEB
- https://lists.debian.org/debian-lts-announce/2020/03/msg00006.html WEB
- https://lists.apache.org/thread.html/rd547be0c9d821b4b1000a694b8e58ef9f5e2d66db03a31dfe77c4b18@%3Cusers.tomcat.apache.org%3E WEB
- https://lists.apache.org/thread.html/rc31cbabb46cdc58bbdd8519a8f64b6236b2635a3922bbeba0f0e3743@%3Ccommits.tomee.apache.org%3E WEB
- https://lists.apache.org/thread.html/ra5dee390ad2d60307b8362505c059cd6a726de4d146d63dfce1e05e7@%3Cusers.tomcat.apache.org%3E WEB
- https://lists.apache.org/thread.html/r9ce7918faf347e7aac32be930bf26c233b0b140fe37af0bb294158b6@%3Cdev.tomcat.apache.org%3E WEB
- https://lists.apache.org/thread.html/r80e9c8417c77d52c62809168b96912bda70ddf7748f19f8210f745b1@%3Cusers.tomcat.apache.org%3E WEB
- https://lists.apache.org/thread.html/r7bc994c965a34876bd94d5ff15b4e1e30b6220a15eb9b47c81915b78@%3Ccommits.tomee.apache.org%3E WEB
- https://lists.apache.org/thread.html/r660cd379afe346f10d72c0eaa8459ccc95d83aff181671b7e9076919@%3Cusers.tomcat.apache.org%3E WEB
- https://lists.apache.org/thread.html/r441c1f30a252bf14b07396286f6abd8089ce4240e91323211f1a2d75@%3Cusers.tomcat.apache.org%3E WEB
- https://lists.apache.org/thread.html/r127f76181aceffea2bd4711b03c595d0f115f63e020348fe925a916c%40%3Cannounce.tomcat.apache.org%3E WEB
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00025.html WEB
Sources
| Source | Licence |
|---|---|
| OSV.dev | CC-BY 4.0 — GitHub Advisory Database |