PT-2017-16645 · Apache · Apache Tomcat

Published 2017-03-30 · Updated 2023-12-08 · CVE-2017-5650

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Apache Tomcat versions 8.5.0 through 8.5.12 Apache Tomcat versions 9.0.0.M1 through 9.0.0.M18

Description 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.

Recommendations For Apache Tomcat versions 8.5.0 through 8.5.12, update to a version that includes the fix for this issue. For Apache Tomcat versions 9.0.0.M1 through 9.0.0.M18, update to a version that includes the fix for this issue. As a temporary workaround, consider restricting the number of concurrent HTTP/2 requests to minimize the risk of exploitation.

Fix

Improper Resource Release

Weakness Enumeration

CWE-404

Related Identifiers

CVE-2017-5650

GHSA-9785-W233-X6HV

Affected Products

Apache Tomcat

References · 33

• https://security.gentoo.org/glsa/201705-09 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2017-5650 · Security Note
• https://osv.dev/vulnerability/GHSA-9785-w233-x6hv · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2017-5650 · Vendor Advisory
• https://github.com/apache/tomcat · Note
• https://github.com/apache/tomcat/commit/2cb9c724e6a2d15a5bc909c4bf1ab9dfc26fa362 · Note
• https://github.com/apache/tomcat/commit/5496e193a89b8b8b3177e516358df2f07ab852b3 · Note
• http://securitytracker.com/id/1038217 · Note
• https://lists.apache.org/thread.html/eb6efa8d59c45a7a9eff94c4b925467d3b3fec8ba7697f3daa314b04@%3Cdev.tomcat.apache.org%3E · Note
• https://lists.apache.org/thread.html/343558d982879bf88ec20dbf707f8c11255f8e219e81d45c4f8d0551%40%3Cdev.tomcat.apache.org%3E · Note
• https://tomcat.apache.org/security-8 · Note
• https://web.archive.org/web/20170417124144/http://securityfocus.com/bid/97531 · Note
• https://lists.apache.org/thread.html/343558d982879bf88ec20dbf707f8c11255f8e219e81d45c4f8d0551@%3Cdev.tomcat.apache.org%3E · Note
• https://lists.apache.org/thread.html/r3bbb800a816d0a51eccc5a228c58736960a9fffafa581a225834d97d%40%3Cdev.tomcat.apache.org%3E · Note
• https://lists.apache.org/thread.html/r48c1444845fe15a823e1374674bfc297d5008a5453788099ea14caf0@%3Cdev.tomcat.apache.org%3E · Note