7.5
CWE
200
Advisory Published
CVE Published
Advisory Published
Updated

CVE-2020-17527: Apache Tomcat: Request header mix-up between HTTP/2 streams

First published: Thu Dec 03 2020(Updated: )

Apache Tomcat could allow a remote attacker to obtain sensitive information, caused by an issue when the HTTP request header value can be reused from the previous stream received on an HTTP/2 connection. By sending a specially-crafted HTTP request, an attacker could exploit this vulnerability to obtain sensitive information, and use this information to launch further attacks against the affected system.

Credit: security@apache.org security@apache.org

Affected SoftwareAffected VersionHow to fix
redhat/jws5-tomcat<0:9.0.36-9.redhat_8.1.el7
0:9.0.36-9.redhat_8.1.el7
redhat/jws5-tomcat-native<0:1.2.25-3.redhat_3.el7
0:1.2.25-3.redhat_3.el7
redhat/jws5-tomcat<0:9.0.36-9.redhat_8.1.el8
0:9.0.36-9.redhat_8.1.el8
redhat/jws5-tomcat-native<0:1.2.25-3.redhat_3.el8
0:1.2.25-3.redhat_3.el8
redhat/tomcat<10.0.0
10.0.0
redhat/tomcat<9.0.40
9.0.40
redhat/tomcat<8.5.60
8.5.60
IBM IBM® Engineering Requirements Management DOORS<=9.7.2.7
IBM IBM® Engineering Requirements Management DOORS Web Access<=9.7.2.7
maven/org.apache.tomcat:tomcat-coyote>=8.5.0<8.5.60
8.5.60
maven/org.apache.tomcat:tomcat-coyote>=9.0.0-M1<9.0.40
9.0.40
maven/org.apache.tomcat:tomcat-coyote>=10.0.0-M1<10.0.0-M10
10.0.0-M10
Apache Tomcat>=8.5.1<=8.5.59
Apache Tomcat>=9.0.1<=9.0.35
Apache Tomcat=9.0.0-milestone10
Apache Tomcat=9.0.0-milestone11
Apache Tomcat=9.0.0-milestone12
Apache Tomcat=9.0.0-milestone13
Apache Tomcat=9.0.0-milestone14
Apache Tomcat=9.0.0-milestone15
Apache Tomcat=9.0.0-milestone16
Apache Tomcat=9.0.0-milestone17
Apache Tomcat=9.0.0-milestone18
Apache Tomcat=9.0.0-milestone19
Apache Tomcat=9.0.0-milestone20
Apache Tomcat=9.0.0-milestone21
Apache Tomcat=9.0.0-milestone22
Apache Tomcat=9.0.0-milestone23
Apache Tomcat=9.0.0-milestone24
Apache Tomcat=9.0.0-milestone25
Apache Tomcat=9.0.0-milestone26
Apache Tomcat=9.0.0-milestone27
Apache Tomcat=9.0.0-milestone5
Apache Tomcat=9.0.0-milestone6
Apache Tomcat=9.0.0-milestone7
Apache Tomcat=9.0.0-milestone8
Apache Tomcat=9.0.0-milestone9
Apache Tomcat=9.0.35-3.39.1
Apache Tomcat=9.0.35-3.57.3
Apache Tomcat=9.0.36
Apache Tomcat=9.0.37
Apache Tomcat=9.0.38
Apache Tomcat=9.0.39
Apache Tomcat=10.0.0-milestone1
Apache Tomcat=10.0.0-milestone2
Apache Tomcat=10.0.0-milestone3
Apache Tomcat=10.0.0-milestone4
Apache Tomcat=10.0.0-milestone5
Apache Tomcat=10.0.0-milestone6
Apache Tomcat=10.0.0-milestone7
Apache Tomcat=10.0.0-milestone8
Apache Tomcat=10.0.0-milestone9
Netapp Element Plug-in Vcenter Server
NetApp OnCommand System Manager>=3.0.0<=3.1.3
Debian Debian Linux=9.0
Debian Debian Linux=10.0
Oracle Blockchain Platform<21.1.2
Oracle Communications Cloud Native Core Binding Support Function=1.10.0
Oracle Communications Cloud Native Core Policy=1.14.0
Oracle Communications Instant Messaging Server=10.0.1.5.0
Oracle Instantis Enterprisetrack=17.1
Oracle Instantis Enterprisetrack=17.2
Oracle Instantis Enterprisetrack=17.3
Oracle Mysql Enterprise Monitor<8.0.23
Oracle SD-WAN Edge=9.0
Oracle Workload Manager=18c
Oracle Workload Manager=19c
debian/tomcat9
9.0.43-2~deb11u10
9.0.70-2
9.0.95-1

Never miss a vulnerability like this again

Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.

Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is the severity of CVE-2020-17527?

    The severity of CVE-2020-17527 is high.

  • How does CVE-2020-17527 affect Apache Tomcat?

    CVE-2020-17527 affects Apache Tomcat versions 10.0.0-M1 to 10.0.0-M9, 9.0.0-M1 to 9.0.39, and 8.5.0 to 8.5.59.

  • How can I fix CVE-2020-17527 in Apache Tomcat?

    To fix CVE-2020-17527 in Apache Tomcat, update to version 10.0.0-M10, 9.0.40, or 8.5.60.

  • Are there any references for CVE-2020-17527?

    Yes, you can find references for CVE-2020-17527 at the following links: [reference 1](https://www.cve.org/CVERecord?id=CVE-2020-17527), [reference 2](https://nvd.nist.gov/vuln/detail/CVE-2020-17527), [reference 3](http://tomcat.apache.org/security-10.html#Fixed_in_Apache_Tomcat_10.0.0-M10), [reference 4](http://tomcat.apache.org/security-8.html#Fixed_in_Apache_Tomcat_8.5.60), [reference 5](http://tomcat.apache.org/security-9.html#Fixed_in_Apache_Tomcat_9.0.40), [reference 6](https://bugzilla.redhat.com/show_bug.cgi?id=1904221), [reference 7](https://access.redhat.com/errata/RHSA-2021:5134).

  • What is the Common Weakness Enumeration (CWE) ID for CVE-2020-17527?

    The Common Weakness Enumeration (CWE) ID for CVE-2020-17527 is 200.

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2024 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203