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Test ID:1.3.6.1.4.1.25623.1.0.892407
Category:Debian Local Security Checks
Title:Debian: Security Advisory (DLA-2407-1)
Summary:The remote host is missing an update for the Debian 'tomcat8' package(s) announced via the DLA-2407-1 advisory.
Description:Summary:
The remote host is missing an update for the Debian 'tomcat8' package(s) announced via the DLA-2407-1 advisory.

Vulnerability Insight:
It was discovered that there was an issue in Apache Tomcat 8, the Java application server. An excessive number of concurrent streams could have resulted in users seeing responses for unexpected resources.

CVE-2020-13943

If an HTTP/2 client connecting to Apache Tomcat 10.0.0-M1 to 10.0.0-M7, 9.0.0.M1 to 9.0.37 or 8.5.0 to 8.5.57 exceeded the agreed maximum number of concurrent streams for a connection (in violation of the HTTP/2 protocol), it was possible that a subsequent request made on that connection could contain HTTP headers - including HTTP/2 pseudo headers - from a previous request rather than the intended headers. This could lead to users seeing responses for unexpected resources.

For Debian 9 Stretch, these problems have been fixed in version 8.5.54-0+deb9u4.

We recommend that you upgrade your tomcat8 packages.

Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: [link moved to references]

Affected Software/OS:
'tomcat8' package(s) on Debian 9.

Solution:
Please install the updated package(s).

CVSS Score:
4.0

CVSS Vector:
AV:N/AC:L/Au:S/C:P/I:N/A:N

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2020-13943
https://security.netapp.com/advisory/ntap-20201016-0007/
Debian Security Information: DSA-4835 (Google Search)
https://www.debian.org/security/2021/dsa-4835
https://lists.apache.org/thread.html/r4a390027eb27e4550142fac6c8317cc684b157ae314d31514747f307%40%3Cannounce.tomcat.apache.org%3E
https://www.oracle.com/security-alerts/cpuApr2021.html
https://lists.debian.org/debian-lts-announce/2020/10/msg00019.html
SuSE Security Announcement: openSUSE-SU-2020:1799 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00002.html
SuSE Security Announcement: openSUSE-SU-2020:1842 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00021.html
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