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
0.727 High
EPSS
Percentile
98.0%
h3. Denial of service in Apache TomcatΒ CVE-2019-0199
A vulnerability was found in Apache Tomcat version from 9.0.0.M1 to 9.0.14 inclusive and 8.5.0 to 8.5.37 inclusive. The HTTP/2 implementation accepted streams with excessive numbers of SETTINGS frames and also permitted clients to keep streams open without reading/writing request/response data. By keeping streams open for requests that utilised the Servlet APIβs blocking I/O, clients were able to cause server-side threads to block eventually leading to thread exhaustion and a DoS.
Workaround
Upgrading to Tomcat 9.0.16 will fix the issue.
h4. Fixed Versions
>= 8.5.38
>= 9.0.16
CPE | Name | Operator | Version |
---|---|---|---|
jira data center | le | 7.13.2 | |
jira data center | le | 7.6.12 | |
jira data center | le | 8.0.2 | |
jira data center | lt | 8.2.2 |
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
0.727 High
EPSS
Percentile
98.0%