GoogleOSV:GHSA-Q4HG-RMQ2-52Q9Improper Locking in Apache Tomcat
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
0.736 High
EPSS
Percentile
98.0%
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.
References
lists.opensuse.org/opensuse-security-announce/2020-01/msg00013.html
access.redhat.com/errata/RHSA-2019:3929
access.redhat.com/errata/RHSA-2019:3931
github.com/apache/tomcat
github.com/apache/tomcat/commit/0bcd69c9dd8ae0ff424f2cd46de51583510b7f35
github.com/apache/tomcat/commit/7f748eb6bfaba5207c89dbd7d5adf50fae847145
github.com/apache/tomcat/commit/8d14c6f21d29768a39be4b6b9517060dc6606758
github.com/apache/tomcat/commit/ada725a50a60867af3422c8e612aecaeea856a9a
lists.apache.org/thread.html/df1a2c1b87c8a6c500ecdbbaf134c7f1491c8d79d98b48c6b9f0fa6a%40%3Cannounce.tomcat.apache.org%3E
lists.apache.org/thread.html/df1a2c1b87c8a6c500ecdbbaf134c7f1491c8d79d98b48c6b9f0fa6a@%3Cannounce.tomcat.apache.org%3E
lists.apache.org/thread.html/r3bbb800a816d0a51eccc5a228c58736960a9fffafa581a225834d97d%40%3Cdev.tomcat.apache.org%3E
lists.apache.org/thread.html/r3bbb800a816d0a51eccc5a228c58736960a9fffafa581a225834d97d@%3Cdev.tomcat.apache.org%3E
lists.apache.org/thread.html/r48c1444845fe15a823e1374674bfc297d5008a5453788099ea14caf0%40%3Cdev.tomcat.apache.org%3E
lists.apache.org/thread.html/r48c1444845fe15a823e1374674bfc297d5008a5453788099ea14caf0@%3Cdev.tomcat.apache.org%3E
lists.apache.org/thread.html/r6ccee4e849bc77df0840c7f853f6bd09d426f6741247da2b7429d5d9%40%3Cdev.tomcat.apache.org%3E
lists.apache.org/thread.html/r6ccee4e849bc77df0840c7f853f6bd09d426f6741247da2b7429d5d9@%3Cdev.tomcat.apache.org%3E
lists.apache.org/thread.html/raba0fabaf4d56d4325ab2aca8814f0b30a237ab83d8106b115ee279a%40%3Cdev.tomcat.apache.org%3E
lists.apache.org/thread.html/raba0fabaf4d56d4325ab2aca8814f0b30a237ab83d8106b115ee279a@%3Cdev.tomcat.apache.org%3E
nvd.nist.gov/vuln/detail/CVE-2019-10072
security.netapp.com/advisory/ntap-20190625-0002
support.f5.com/csp/article/K17321505
tomcat.apache.org/security-8.html
tomcat.apache.org/security-9.html
usn.ubuntu.com/4128-1
usn.ubuntu.com/4128-2
web.archive.org/web/20200227033743/www.securityfocus.com/bid/108874
www.debian.org/security/2020/dsa-4680
www.oracle.com/security-alerts/cpuapr2020.html
www.oracle.com/security-alerts/cpuApr2021.html
www.oracle.com/security-alerts/cpujan2020.html
www.oracle.com/security-alerts/cpuoct2020.html
www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html
www.synology.com/security/advisory/Synology_SA_19_29
Related
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
0.736 High
EPSS
Percentile
98.0%