-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 Package : tomcat7 Version : 7.0.56-3+really7.0.100-1 CVE ID : CVE-2019-17569 CVE-2020-1935 CVE-2020-1938
Several security vulnerabilities have been discovered in the Tomcat servlet and JSP engine. CVE-2019-17569 The refactoring in 7.0.98 introduced a regression. The result of the regression was that invalid Transfer-Encoding headers were incorrectly processed leading to a possibility of HTTP Request Smuggling if Tomcat was located behind a reverse proxy that incorrectly handled the invalid Transfer-Encoding header in a particular manner. Such a reverse proxy is considered unlikely. CVE-2020-1935 The HTTP header parsing code used an approach to end-of-line (EOL) parsing that allowed some invalid HTTP headers to be parsed as valid. This led to a possibility of HTTP Request Smuggling if Tomcat was located behind a reverse proxy that incorrectly handled the invalid Transfer-Encoding header in a particular manner. Such a reverse proxy is considered unlikely. CVE-2020-1938 When using the Apache JServ Protocol (AJP), care must be taken when trusting incoming connections to Apache Tomcat. Tomcat treats AJP connections as having higher trust than, for example, a similar HTTP connection. If such connections are available to an attacker, they can be exploited in ways that may be surprising. Prior to Tomcat 7.0.100, Tomcat shipped with an AJP Connector enabled by default that listened on all configured IP addresses. It was expected (and recommended in the security guide) that this Connector would be disabled if not required. Note that Debian already disabled the AJP connector by default. Mitigation is only required if the AJP port was made accessible to untrusted users. For Debian 8 "Jessie", these problems have been fixed in version 7.0.56-3+really7.0.100-1. We recommend that you upgrade your tomcat7 packages. Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS -----BEGIN PGP SIGNATURE----- iQKTBAEBCgB9FiEErPPQiO8y7e9qGoNf2a0UuVE7UeQFAl5f8BpfFIAAAAAALgAo aXNzdWVyLWZwckBub3RhdGlvbnMub3BlbnBncC5maWZ0aGhvcnNlbWFuLm5ldEFD RjNEMDg4RUYzMkVERUY2QTFBODM1RkQ5QUQxNEI5NTEzQjUxRTQACgkQ2a0UuVE7 UeQn7g/+KGW5Z3Byq+y06Y4ELpxShoHaLkF7DM49AIml1XF49kdrxRFKEyb2dGnh 7DW475eE7iKJ/6Ja9snGEnxvTXxL9AoiNeMPsZZ7hno5EbBZm0eVG5rSLw69R150 KcYh9oKh5KyrhjvcLS2bmYbQ6U1s+Evy8/bNINw0HK6Oy2RSj5TmRRUdWhL+LPzU xblzYIXM9KNB6ZfSKormC/3C9/jSjfAZW4k/rAvf5z9wAu6547SHykHFhmP4CUPY 0sqa42hLI0veN7ymKkD/oky9bTCZmjt+zsNLSJ8+mgzMGulEulFSo2iQukGYJ6zX M0Cod/INwzJNubpFodtz7CnXbvAj+b6Ju/Bm7yFq5bnUryHqRjVSzbkbfMMRku6v UqlVu7uQljMrDbcRNxuE01tnproK0C+e7vYXnpuU/BgQ5yh0QlvAe+d+wM/GdRS0 Rrm99UtxE4u0p/wgERnindW3ot+lq9LqFyRpGEbsPLWzXgducElhKnkRygxDBrrI h+l014qWYbf8qo2yUKashnuBMJQrpRqva5DtTg0psrqODHGQEgTGH7pqzj4gyLD7 licJTMKoICzV3tM/gwV415fUQQDD4yh2TpLIlh7VwNSRJl9NSbUnikWx5jzi7TqB D8ZaCMZVjUMCR/di8AIO83ztaBC7hFmHblV0JyKUe365SaER+Rc= =URau -----END PGP SIGNATURE-----