CVE-2019-17569
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
02 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
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 8.87% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 94.7% of scored records. A rank, not a probability.
- NVD base score
- 4.8 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
- NVD analysis status
- Modified. NVD last modified this record on 2026-08-25.
- Red Hat severity
- Low. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2020-02-24 21:04Z6 YR AGO
- Last updated
- 2024-08-05 01:40Z2 YR AGO
- Reserved
- 2019-10-14
- Assigning CNA
- apache
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-444Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')Base
- Data version
- 5.1
- Document digest
- 2abb49133477a79113e4b33fe7ef46159c31f56f54e6abc91973718bf085cf79
05 Affected products
06 References
- lists.apache.org[tomcat-announce] 20200224 [SECURITY] CVE-2019-17569 HTTP Request Smugglinghttps://lists.apache.org/thread.html/r88def002c5c78534674ca67472e035099fbe088813d50062094a1390%40%3Cannounce.tomcat.apache.org%3E
- lists.debian.org[debian-lts-announce] 20200304 [SECURITY] [DLA 2133-1] tomcat7 security updatehttps://lists.debian.org/debian-lts-announce/2020/03/msg00006.html
- lists.opensuse.orgopenSUSE-SU-2020:0345http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00025.html
- lists.apache.org[tomee-commits] 20200320 [jira] [Created] (TOMEE-2790) TomEE plus(7.0.7) is affected by CVE-2020-1935 & CVE-2019-17569 vulnerabilitieshttps://lists.apache.org/thread.html/rc31cbabb46cdc58bbdd8519a8f64b6236b2635a3922bbeba0f0e3743%40%3Ccommits.tomee.apache.org%3E
- lists.apache.org[tomee-commits] 20200323 [jira] [Commented] (TOMEE-2790) TomEE plus(7.0.7) is affected by CVE-2020-1935 & CVE-2019-17569 vulnerabilitieshttps://lists.apache.org/thread.html/r7bc994c965a34876bd94d5ff15b4e1e30b6220a15eb9b47c81915b78%40%3Ccommits.tomee.apache.org%3E
- www.debian.orgDSA-4673https://www.debian.org/security/2020/dsa-4673
- www.debian.orgDSA-4680https://www.debian.org/security/2020/dsa-4680
- www.oracle.comhttps://www.oracle.com/security-alerts/cpujul2020.html
- security.netapp.comhttps://security.netapp.com/advisory/ntap-20200327-0005/
- www.oracle.comhttps://www.oracle.com/security-alerts/cpuoct2020.html
- www.oracle.comhttps://www.oracle.com/security-alerts/cpujan2021.html
07 Fixed in
Debian 12
- tomcat9 Fixed in 9.0.31-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- tomcat9 Fixed in 9.0.31-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- tomcat9 Fixed in 9.0.31-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.