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Debian Security Advisory DSA 3974-1 (tomcat8 - security update)
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
Two issues were discovered in the Tomcat servlet and JSP engine. CVE-2017-7674 Rick Riemer discovered that the Cross-Origin Resource Sharing filter did not add a Vary header indicating possible different responses, which could lead to cache poisoning. CVE-2017-7675 (stretch only) Markus Dorschmidt found that the HTTP/2 implementation bypassed some security checks, thus allowing an attacker to conduct directory traversal attacks by using specially crafted URLs.
Affected Software
Affected Software
tomcat8 on Debian Linux
Detection Method
Detection Method
This check tests the installed software version using the apt package manager.
Solution
Solution
For the oldstable distribution (jessie), these problems have been fixed in version 8.0.14-1+deb8u11. For the stable distribution (stretch), these problems have been fixed in version 8.5.14-1+deb9u2. We recommend that you upgrade your tomcat8 packages.