Security Bulletin: CVE-2021-33037 Apache Tomcat 8.5.66 did not correctly parse the HTTP transfer-encoding request header leading to the possibility to request smuggling when used with a reverse proxy

Summary Apache Tomcat 10.0.0-M1 to 10.0.6, 9.0.0.M1 to 9.0.46 and 8.5.0 to 8.5.66 did not correctly parse the HTTP transfer-encoding request header in some circumstances leading to the possibility to request smuggling when used with a reverse proxy. Specifically: - Tomcat incorrectly ignored the...

GHSA-JJ53-8FMW-F2W2 Adding a private/unlisted room to a community exposes room metadata in an unauthorised manner.

Impact Unauthorised users can access the name, avatar, topic and number of members of a room if they know the ID of the room. This vulnerability is limited to homeservers where: - the vulnerable homeserver is in the room; and - untrusted users are permitted to create groups communities. By defaul...

Adding a private/unlisted room to a community exposes room metadata in an unauthorised manner.

Impact Unauthorised users can access the name, avatar, topic and number of members of a room if they know the ID of the room. This vulnerability is limited to homeservers where: - the vulnerable homeserver is in the room; and - untrusted users are permitted to create groups communities. By defaul...

GHSA-3X4C-PQ33-4W3Q Improper authorisation of members discloses room membership to non-members

Impact Unauthorised users can access the membership list of members, with their display names of a room if they know the ID of the room. The vulnerability is limited to rooms with shared history visibility. Furthermore, the unauthorised user must be using an account on a vulnerable homeserver tha...

CVE-2021-39164

Matrix is an ecosystem for open federated Instant Messaging and Voice over IP. In versions 1.41.0 and prior, unauthorised users can access the membership list of members, with their display names of a room if they know the ID of the room. The vulnerability is limited to rooms with shared history...

DEBIAN-CVE-2021-39164

Matrix is an ecosystem for open federated Instant Messaging and Voice over IP. In versions 1.41.0 and prior, unauthorised users can access the membership list of members, with their display names of a room if they know the ID of the room. The vulnerability is limited to rooms with shared history...

CVE-2021-39164

Matrix is an ecosystem for open federated Instant Messaging and Voice over IP. In versions 1.41.0 and prior, unauthorised users can access the membership list of members, with their display names of a room if they know the ID of the room. The vulnerability is limited to rooms with shared history...

Code injection

Matrix is an ecosystem for open federated Instant Messaging and Voice over IP. In versions 1.41.0 and prior, unauthorised users can access the membership list of members, with their display names of a room if they know the ID of the room. The vulnerability is limited to rooms with shared history...

PYSEC-2021-425

Matrix is an ecosystem for open federated Instant Messaging and Voice over IP. In versions 1.41.0 and prior, unauthorised users can access the membership list of members, with their display names of a room if they know the ID of the room. The vulnerability is limited to rooms with shared history...

PYSEC-2021-425

Matrix is an ecosystem for open federated Instant Messaging and Voice over IP. In versions 1.41.0 and prior, unauthorised users can access the membership list of members, with their display names of a room if they know the ID of the room. The vulnerability is limited to rooms with shared history...

CVE-2021-39164

Matrix is an ecosystem for open federated Instant Messaging and Voice over IP. In versions 1.41.0 and prior, unauthorised users can access the membership list of members, with their display names of a room if they know the ID of the room. The vulnerability is limited to rooms with shared history...

CVE-2021-39164

Matrix is an ecosystem for open federated Instant Messaging and Voice over IP. In versions 1.41.0 and prior, unauthorised users can access the membership list of members, with their display names of a room if they know the ID of the room. The vulnerability is limited to rooms with shared history...

CVE-2021-39164

Matrix is an ecosystem for open federated Instant Messaging and Voice over IP. In versions 1.41.0 and prior, unauthorised users can access the membership list of members, with their display names of a room if they know the ID of the room. The vulnerability is limited to rooms with shared history...

CVE-2021-39164 Improper authorisation of /members discloses room membership to non-members

Matrix is an ecosystem for open federated Instant Messaging and Voice over IP. In versions 1.41.0 and prior, unauthorised users can access the membership list of members, with their display names of a room if they know the ID of the room. The vulnerability is limited to rooms with shared history...

CVE-2021-39163

Matrix is an ecosystem for open federated Instant Messaging and Voice over IP. In versions 1.41.0 and prior, unauthorised users can access the name, avatar, topic and number of members of a room if they know the ID of the room. This vulnerability is limited to homeservers where the vulnerable...

Design/Logic Flaw

Matrix is an ecosystem for open federated Instant Messaging and Voice over IP. In versions 1.41.0 and prior, unauthorised users can access the name, avatar, topic and number of members of a room if they know the ID of the room. This vulnerability is limited to homeservers where the vulnerable...

PYSEC-2021-424

Matrix is an ecosystem for open federated Instant Messaging and Voice over IP. In versions 1.41.0 and prior, unauthorised users can access the name, avatar, topic and number of members of a room if they know the ID of the room. This vulnerability is limited to homeservers where the vulnerable...

CVE-2021-39163

Matrix is an ecosystem for open federated Instant Messaging and Voice over IP. In versions 1.41.0 and prior, unauthorised users can access the name, avatar, topic and number of members of a room if they know the ID of the room. This vulnerability is limited to homeservers where the vulnerable...

CVE-2021-39163

Matrix is an ecosystem for open federated Instant Messaging and Voice over IP. In versions 1.41.0 and prior, unauthorised users can access the name, avatar, topic and number of members of a room if they know the ID of the room. This vulnerability is limited to homeservers where the vulnerable...

golang: net/http/httputil: ReverseProxy forwards connection headers if first one is empty

A flaw was found in Go, acting as an unintended proxy or intermediary, where ReverseProxy forwards connection headers if the first one was empty. This flaw allows an attacker to drop arbitrary headers. The highest threat from this vulnerability is to integrity...