Vulnerability in Apache Tomcat
CVE-2017-5650
In Apache Tomcat 9.0.0.M1 to 9.0.0.M18 and 8.5.0 to 8.5.12, the handling of an HTTP/2 GOAWAY frame for a connection did not close streams associated with that connection that were currently waiting for a WINDOW_UPDATE before allowing the application to write more data. These waiting streams each consumed a thread. A malicious client could therefore construct a series of HTTP/2 requests that would consume all available processing threads.
EPSS: 0.083 (94.3th percentile) — read the EPSS interpretation.
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.
Affected products
- Apache Tomcat — versions 8.5.0, 8.5.1, 8.5.2
- Apache Software Foundation Tomcat — versions 8.5.0 to 8.5.12, 9.0.0.M1 to 9.0.0.M18
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@apache.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
- security@apache.org (vendor-advisory, x_refsource_GENTOO)
- security@apache.org (x_refsource_CONFIRM)
- security@apache.org (vdb-entry, x_refsource_SECTRACK)
- security@apache.org (mailing-list, x_refsource_MLIST)
- security@apache.org (x_refsource_CONFIRM)
- security@apache.org (mailing-list, x_refsource_MLIST)
- security@apache.org (mailing-list, x_refsource_MLIST)
- security@apache.org (mailing-list, x_refsource_MLIST)
- security@apache.org (mailing-list, x_refsource_MLIST)
Frequently asked questions
- What is CVE-2017-5650?
- CVE-2017-5650 is a high-severity vulnerability in Apache Tomcat, classified under Improper Resource Shutdown or Release. CVSS score: 7.5/10. Published 2017-04-17.
- How severe is CVE-2017-5650?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2017-5650 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.