CVE-2023-46589
Improper Input Validation vulnerability in Apache Tomcat.Tomcat from 11.0.0-M1 through 11.0.0-M10, from 10.1.0-M1 through 10.1.15, from 9.0.0-M1 through 9.0.82 and from 8.5.0 through 8.5.95 did not correctly parse HTTP trailer headers.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.65%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Improper Input Validation vulnerability in Apache Tomcat.Tomcat from 11.0.0-M1 through 11.0.0-M10, from 10.1.0-M1 through 10.1.15, from 9.0.0-M1 through 9.0.82 and from 8.5.0 through 8.5.95 did not correctly parse HTTP trailer headers. A trailer header that exceeded the header size limit 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-M11 onwards, 10.1.16 onwards, 9.0.83 onwards or 8.5.96 onwards, which fix the issue.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- EPSS
- 2.65% probability · 85th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-444
- Affected
- apache/tomcat
- Source
- security@apache.org
References
- https://lists.apache.org/thread/0rqq6ktozqc42ro8hhxdmmdjm1k1tpxrMailing List, Vendor Advisory
- https://www.openwall.com/lists/oss-security/2023/11/28/2Mailing List, Third Party Advisory
- https://lists.apache.org/thread/0rqq6ktozqc42ro8hhxdmmdjm1k1tpxrMailing List, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2024/01/msg00001.html
- https://security.netapp.com/advisory/ntap-20231214-0009/
- https://www.openwall.com/lists/oss-security/2023/11/28/2Mailing List, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.