Vulnerability in Apache Tomcat
CVE-2019-10072
The fix for CVE-2019-0199 was incomplete and did not address HTTP/2 connection window exhaustion on write in Apache Tomcat versions 9.0.0.M1 to 9.0.19 and 8.5.0 to 8.5.40 . By not sending WINDOW_UPDATE messages for the connection window (stream 0) clients were able to cause server-side threads to block eventually leading to thread exhaustion and a DoS.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.730 (99.5th percentile), scored .
High probability of exploitation in the next 30 days — patch promptly. 99th percentile — 99.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.695 · newest: 0.730 · change: +0.034
Affected products
- Apache Tomcat — versions 9.0.0
- Apache Tomcat — versions Apache Tomcat 9.0.0.M1 to 9.0.19, 8.5.0 to 8.5.40
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.securityfocus.com/bid/108874 (vdb-entry)
- usn.ubuntu.com/4128-1/ (vendor-advisory)
- usn.ubuntu.com/4128-2/ (vendor-advisory)
- access.redhat.com/errata/RHSA-2019:3929 (vendor-advisory)
- access.redhat.com/errata/RHSA-2019:3931 (vendor-advisory)
- lists.opensuse.org/opensuse-security-announce/2020-01/msg00013.html (vendor-advisory)
- lists.apache.org/thread.html/r6ccee4e849bc77df0840c7f853f6bd09d426f6741247da2b7… (mailing-list)
- lists.apache.org/thread.html/r3bbb800a816d0a51eccc5a228c58736960a9fffafa581a225… (mailing-list)
- lists.apache.org/thread.html/raba0fabaf4d56d4325ab2aca8814f0b30a237ab83d8106b11… (mailing-list)
- lists.apache.org/thread.html/r48c1444845fe15a823e1374674bfc297d5008a5453788099e… (mailing-list)
Frequently asked questions
- What is CVE-2019-10072?
- CVE-2019-10072 is a high-severity vulnerability in Apache Tomcat, classified under Improper Locking. CVSS score: 7.5/10. Published 2019-06-21.
- How severe is CVE-2019-10072?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2019-10072 known to be exploited?
- 5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.