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Vulnerability record · CVE-2017-6056 · published 17 February 2017

CVE-2017-6056: Canonical ubuntu linux vulnerability

Canonical · Ubuntu Linux

It was discovered that a programming error in the processing of HTTPS requests in the Apache Tomcat servlet and JSP engine may result in denial of service via an infinite loop. The denial of service is easily achievable as a consequence of backporting a CVE-2016-6816 fix but not backporting the fix for Tomcat bug 57544. Distributions affected by this backporting issue include Debian (before 7.0.56-3+deb8u8 and 8.0.14-1+deb8u7 in jessie) and Ubuntu.

7.5 CVSS 3.0 High EPSS 7.5% · top 5.7% CWE-835 · CWE-835
7.5CVSS 3.0 base score, v2 5.0
7.5%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
34References
17 Jun 2026Last modified by NVD

Description

It was discovered that a programming error in the processing of HTTPS requests in the Apache Tomcat servlet and JSP engine may result in denial of service via an infinite loop. The denial of service is easily achievable as a consequence of backporting a CVE-2016-6816 fix but not backporting the fix for Tomcat bug 57544. Distributions affected by this backporting issue include Debian (before 7.0.56-3+deb8u8 and 8.0.14-1+deb8u7 in jessie) and Ubuntu.

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://rhn.redhat.com/errata/RHSA-2017-0517.html Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0826.html Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0827.html Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0828.html Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0829.html Third Party Advisory
http://www.debian.org/security/2017/dsa-3787 Third Party Advisory
http://www.debian.org/security/2017/dsa-3788 Third Party Advisory
http://www.securityfocus.com/bid/96293 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1037860 Third Party AdvisoryVDB Entry
https://bugs.debian.org/851304 Issue TrackingThird Party Advisory
https://bz.apache.org/bugzilla/show_bug.cgi?id=60578 Issue TrackingThird Party Advisory
https://lists.apache.org/thread.html/6b414817c2b0bf351138911c8c922ec5dd577ebc0b9a7f42d705752d%40%3Cissues.activemq.apach
https://lists.apache.org/thread.html/ac51944aef91dd5006b8510b0bef337adaccfe962fb90e7af9c22db4%40%3Cissues.activemq.apach
https://lists.debian.org/debian-security-announce/2017/msg00038.html Third Party Advisory
https://lists.debian.org/debian-security-announce/2017/msg00039.html Third Party Advisory
https://security.netapp.com/advisory/ntap-20180731-0002/ Third Party Advisory
https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html
http://rhn.redhat.com/errata/RHSA-2017-0517.html Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0826.html Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0827.html Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0828.html Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-0829.html Third Party Advisory
http://www.debian.org/security/2017/dsa-3787 Third Party Advisory
http://www.debian.org/security/2017/dsa-3788 Third Party Advisory
http://www.securityfocus.com/bid/96293 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1037860 Third Party AdvisoryVDB Entry
https://bugs.debian.org/851304 Issue TrackingThird Party Advisory
https://bz.apache.org/bugzilla/show_bug.cgi?id=60578 Issue TrackingThird Party Advisory
https://lists.apache.org/thread.html/6b414817c2b0bf351138911c8c922ec5dd577ebc0b9a7f42d705752d%40%3Cissues.activemq.apach
https://lists.apache.org/thread.html/ac51944aef91dd5006b8510b0bef337adaccfe962fb90e7af9c22db4%40%3Cissues.activemq.apach
https://lists.debian.org/debian-security-announce/2017/msg00038.html Third Party Advisory
https://lists.debian.org/debian-security-announce/2017/msg00039.html Third Party Advisory
https://security.netapp.com/advisory/ntap-20180731-0002/ Third Party Advisory
https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html

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Source: NIST National Vulnerability Database (record CVE-2017-6056), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.