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Fencer Vulns
high 7.5

CVE-2019-10072 in the critical feed json

Improper Locking in Apache Tomcat

published 2019-06-21 7 y ago modified 2026-11-02 6 d ago also GHSA-q4hg-rmq2-52q9 , EUVD-2019-0558

cvss
7.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
73.0%
EPSS 73.0% chance of exploitation in 30 days, percentile 99.4%
public exploits
0
none known

Summary

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.

Patch / fix

  • maven org.apache.tomcat.embed:tomcat-embed-core 8.5.41, 9.0.20
  • tomcat9 Debian 14, Debian 13, Debian 12 9.0.22-1

debian advisories DEBIAN-CVE-2019-10072

  • tomcat8 Ubuntu 18.04 LTS 8.5.39-1ubuntu1~18.04.3
  • tomcat9 Ubuntu 18.04 LTS 9.0.16-3ubuntu0.18.04.1

ubuntu advisories UBUNTU-CVE-2019-10072

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • jws5-ecj jboss enterprise web server 5.2 4.12.0-1.redhat_1.1.el6jws
  • jws5-ecj jboss enterprise web server 5.2 4.12.0-1.redhat_1.1.el7jws
  • jws5-ecj jboss enterprise web server 5.2 4.12.0-1.redhat_1.1.el8jws
  • jws5-tomcat jboss enterprise web server 5.2 9.0.21-10.redhat_4.1.el6jws
  • jws5-tomcat jboss enterprise web server 5.2 9.0.21-10.redhat_4.1.el7jws
  • jws5-tomcat jboss enterprise web server 5.2 9.0.21-10.redhat_4.1.el8jws
  • jws5-tomcat-lib jboss enterprise web server 5.2 9.0.21-10.redhat_4.1.el6jws
  • jws5-tomcat-lib jboss enterprise web server 5.2 9.0.21-10.redhat_4.1.el7jws

red hat advisories RHSA-2019:3929

  • tomcat SLES for SAP 12 SP5, SLES for SAP 12 SP4, SLES 12 SP5 +1 more 9.0.31-3.25.1
  • tomcat SLE Module for Web and Scripting 15 9.0.30-3.34.1
  • tomcat SLE Module for Web and Scripting 15 SP1 9.0.30-4.10.1
  • tomcat SLES for SAP 12 SP4, SLES 12 SP4 9.0.21-3.13.2

suse advisories SUSE-SU-2020:0632-1SUSE-SU-2020:0226-1SUSE-SU-2020:0029-1SUSE-SU-2019:1866-1

  • tomcat openSUSE Tumbleweed 9.0.36-8.4
  • tomcat10 openSUSE Tumbleweed 10.1.14-1.1
  • tomcat openSUSE Leap 15.1 9.0.30-lp151.3.6.1

opensuse advisories openSUSE-SU-2024:11468-1openSUSE-SU-2024:13441-1openSUSE-SU-2020:0038-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2019-10072 updated cvss 5.3

tomcat: HTTP/2 connection window exhaustion on write, incomplete fix of CVE-2019-0199

  • Red Hat BPM Suite 6 tomcat Red Hat Enterprise Linux 8 pki-deps:10.6/pki-servlet-container Red Hat JBoss BRMS 6 tomcat
    affected: workaround, no fix planned “pki-servlet-container does not use HTTP/2 in its default configuration.”
  • Red Hat JBoss Web Server 5
    fixed: vendor fix “pki-servlet-container does not use HTTP/2 in its default configuration.” RHSA-2019:3931
  • Red Hat JBoss Web Server 5.2 for RHEL 6 Server jws5-ecj 4.12.0-1.redhat_1.1.el6jws, jws5-tomcat 9.0.21-10.redhat_4.1.el6jws, jws5-tomcat-lib 9.0.21-10.redhat_4.1.el6jws, jws5-javapackages-tools 3.4.1-5.15.11.el6jws, jws5-python-javapackages 3.4.1-5.15.11.el6jws, jws5-tomcat-native 1.2.21-34.redhat_34.el6jws, +13 more Red Hat JBoss Web Server 5.2 for RHEL 7 Server jws5-ecj 4.12.0-1.redhat_1.1.el7jws, jws5-tomcat 9.0.21-10.redhat_4.1.el7jws, jws5-tomcat-lib 9.0.21-10.redhat_4.1.el7jws, jws5-javapackages-tools 3.4.1-5.15.11.el7jws, jws5-python-javapackages 3.4.1-5.15.11.el7jws, jws5-tomcat-native 1.2.21-34.redhat_34.el7jws, +13 more Red Hat JBoss Web Server 5.2 for RHEL 8 jws5-ecj 4.12.0-1.redhat_1.1.el8jws, jws5-tomcat 9.0.21-10.redhat_4.1.el8jws, jws5-tomcat-lib 9.0.21-10.redhat_4.1.el8jws, jws5-javapackages-tools 3.4.1-5.15.11.el8jws, jws5-python-javapackages 3.4.1-5.15.11.el8jws, jws5-tomcat-native 1.2.21-34.redhat_34.el8jws, +13 more
    fixed: vendor fix “pki-servlet-container does not use HTTP/2 in its default configuration.” RHSA-2019:3929
  • Red Hat Enterprise Linux 6 tomcat Red Hat Enterprise Linux 7 tomcat, tomcat-lib, tomcat-jsvc, tomcat-javadoc, tomcat-webapps, tomcat-el-2.2-api, +4 more Red Hat Fuse 7 tomcat Red Hat JBoss Data Grid 7 tomcat Red Hat JBoss Fuse 6 tomcat
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
7 d ago

Exploit prediction

72.99% chance of exploitation in the next 30 days, higher than 99.4% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.0 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P
GitHub 3.0 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected packages

ecosystem package affected fixed in
maven org.apache.tomcat.embed:tomcat-embed-core
>=9.0.0.M1, <9.0.20
>=8.5.0, <8.5.41
9.0.20
8.5.41

Affected products

  • n/a Apache Tomcat

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.