Arch Linux alert ASA-202012-4 (tomcat8)
| From: | Remi Gacogne <rgacogne@archlinux.org> | |
| To: | arch-security@archlinux.org | |
| Subject: | [ASA-202012-4] tomcat8: information disclosure | |
| Date: | Wed, 09 Dec 2020 19:51:29 +0100 | |
| Message-ID: | <5d687df3-a2ab-e3f1-5a07-87b506d2ebbe@archlinux.org> |
Arch Linux Security Advisory ASA-202012-4 ========================================= Severity: Medium Date : 2020-12-05 CVE-ID : CVE-2020-17527 Package : tomcat8 Type : information disclosure Remote : Yes Link : https://security.archlinux.org/AVG-1316 Summary ======= The package tomcat8 before version 8.5.60-1 is vulnerable to information disclosure. Resolution ========== Upgrade to 8.5.60-1. # pacman -Syu "tomcat8>=8.5.60-1" The problem has been fixed upstream in version 8.5.60. Workaround ========== None. Description =========== It was discovered that Apache Tomcat 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 could re-use an HTTP request header value from the previous stream received on an HTTP/2 connection for the request associated with the subsequent stream. While this would most likely lead to an error and the closure of the HTTP/2 connection, it is possible that information could leak between requests. Impact ====== A remote attacker might be able to access sensitive information via well-timed HTTP/2 requests. References ========== https://tomcat.apache.org/security-8.html#Fixed_in_Apache... https://github.com/apache/tomcat/commit/21e3408671aac7e0d... https://tomcat.apache.org/security-9.html#Fixed_in_Apache... https://github.com/apache/tomcat/commit/d56293f816d6dc9e2... https://security.archlinux.org/CVE-2020-17527