ALT-PU-2021-1921-1
Closed vulnerabilities
Published: 2020-10-12
Modified: 2024-11-21
Modified: 2024-11-21
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.
Severity: MEDIUM (4.3)
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
References:
- openSUSE-SU-2020:1799
- openSUSE-SU-2020:1842
- https://lists.apache.org/thread.html/r4a390027eb27e4550142fac6c8317cc684b157ae314d31514747f307%40%3Cannounce.tomcat.apache.org%3E
- [debian-lts-announce] 20201014 [SECURITY] [DLA 2407-1] tomcat8 security update
- https://security.netapp.com/advisory/ntap-20201016-0007/
- DSA-4835
- https://www.oracle.com/security-alerts/cpuApr2021.html
- openSUSE-SU-2020:1799
- https://www.oracle.com/security-alerts/cpuApr2021.html
- DSA-4835
- https://security.netapp.com/advisory/ntap-20201016-0007/
- [debian-lts-announce] 20201014 [SECURITY] [DLA 2407-1] tomcat8 security update
- https://lists.apache.org/thread.html/r4a390027eb27e4550142fac6c8317cc684b157ae314d31514747f307%40%3Cannounce.tomcat.apache.org%3E
- openSUSE-SU-2020:1842