CVE-2017-5651

Description

In Apache Tomcat 9.0.0.M1 to 9.0.0.M18 and 8.5.0 to 8.5.12, the refactoring of the HTTP connectors introduced a regression in the send file processing. If the send file processing completed quickly, it was possible for the Processor to be added to the processor cache twice. This could result in the same Processor being used for multiple requests which in turn could lead to unexpected errors and/or response mix-up.

9.8

CVSS

Severity: Critical

CVSS 3.0 •

CVSS 2.0 •

EPSS 9.81% Top 10%

Vendor Advisory gentoo.org

Affected: Apache Software Foundation Apache Tomcat

References

Link	Tags
http://www.securityfocus.com/bid/97544	third party advisory vdb entry
https://security.gentoo.org/glsa/201705-09	vendor advisory
https://security.netapp.com/advisory/ntap-20180614-0001/
https://lists.apache.org/thread.html/6694538826b87522fb723d2dcedd537e14ebe0a381d92e5525a531d8%40%3Cannounce.tomcat.apache.org%3E	mailing list
http://www.securitytracker.com/id/1038219	vdb entry
http://www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.html
https://bz.apache.org/bugzilla/show_bug.cgi?id=60918	patch issue tracking
https://lists.apache.org/thread.html/eb6efa8d59c45a7a9eff94c4b925467d3b3fec8ba7697f3daa314b04%40%3Cdev.tomcat.apache.org%3E	mailing list
https://lists.apache.org/thread.html/343558d982879bf88ec20dbf707f8c11255f8e219e81d45c4f8d0551%40%3Cdev.tomcat.apache.org%3E	mailing list
https://lists.apache.org/thread.html/5c0e00fd31efc11e147bf99d0f03c00a734447d3b131ab0818644cdb%40%3Cdev.tomcat.apache.org%3E	mailing list
https://lists.apache.org/thread.html/b5e3f51d28cd5d9b1809f56594f2cf63dcd6a90429e16ea9f83bbedc%40%3Cdev.tomcat.apache.org%3E	mailing list
https://lists.apache.org/thread.html/88855876c33f2f9c532ffb75bfee570ccf0b17ffa77493745af9a17a%40%3Cdev.tomcat.apache.org%3E	mailing list
https://lists.apache.org/thread.html/6af47120905aa7d8fe12f42e8ff2284fb338ba141d3b77b8c7cb61b3%40%3Cdev.tomcat.apache.org%3E	mailing list
https://lists.apache.org/thread.html/r3bbb800a816d0a51eccc5a228c58736960a9fffafa581a225834d97d%40%3Cdev.tomcat.apache.org%3E	mailing list
https://lists.apache.org/thread.html/r48c1444845fe15a823e1374674bfc297d5008a5453788099ea14caf0%40%3Cdev.tomcat.apache.org%3E	mailing list

Frequently Asked Questions

What is the severity of CVE-2017-5651?: CVE-2017-5651 has been scored as a critical severity vulnerability.
How to fix CVE-2017-5651?: To fix CVE-2017-5651, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2017-5651 being actively exploited in the wild?: It is possible that CVE-2017-5651 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~10% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2017-5651?: CVE-2017-5651 affects Apache Software Foundation Apache Tomcat.