Denial of service attack via incorrect parameters in Matrix Synapse

Impact A malicious or poorly-implemented homeserver can inject malformed events into a room by specifying a different room id in the path of a /sendjoin, /sendleave, /invite or /exchangethirdpartyinvite request. This can lead to a denial of service in which future events will not be correctly sen...

GHSA-HXMP-PQCH-C8MM Denial of service attack via incorrect parameters in Matrix Synapse

Impact A malicious or poorly-implemented homeserver can inject malformed events into a room by specifying a different room id in the path of a /sendjoin, /sendleave, /invite or /exchangethirdpartyinvite request. This can lead to a denial of service in which future events will not be correctly sen...

CVE-2020-26257: Uncontrolled Resource Consumption

Matrix is an ecosystem for open federated Instant Messaging and VoIP. Synapse is a reference "homeserver" implementation of Matrix. A malicious or poorly-implemented homeserver can inject malformed events into a room by specifying a different room id in the path of a /sendjoin, /sendleave, /invit...

SUSE SLES15 Security Update : java-1_8_0-openjdk (SUSE-SU-2020:3460-1)

This update for java-180-openjdk fixes the following issues : Fix regression '8250861: Crash in MinINode::IdealPhaseGVN, bool', introduced in October 2020 CPU. Update to version jdk8u272 icedtea 3.17.0 July 2020 CPU, bsc1174157, and October 2020 CPU, bsc1177943 - New features + JDK-8245468: Add...

PT-2020-16383

Name of the Vulnerable Software and Affected Versions Matrix Synapse versions prior to 1.23.1 Description A malicious or poorly-implemented homeserver can inject malformed events into a room by specifying a different room id in the path of API endpoints such as /send join, /send leave, /invite, o...

Matrix Synapse Resource Management Vulnerability

Matrix Synapse is a Matrix Management Server implementation from the Matrix Foundation in the UK. Matrix Synapse suffers from a security vulnerability that stems from the fact that a malicious or poorly implemented host server can inject malformed events by specifying different room ids in the pa...

py-matrix-synapse -- DoS on Federation API

Matrix developers reports: A malicious or poorly-implemented homeserver can inject malformed events into a room by specifying a different room id in the path of a /sendjoin, /sendleave, /invite or /exchangethirdpartyinvite request. This can lead to a denial of service in which future events will...

openSUSE Security Update : java-1_8_0-openjdk (openSUSE-2020-2083)

This update for java-180-openjdk fixes the following issues : - Fix regression '8250861: Crash in MinINode::IdealPhaseGVN, bool', introduced in October 2020 CPU. - Update to version jdk8u272 icedtea 3.17.0 July 2020 CPU, bsc1174157, and October 2020 CPU, bsc1177943 - New features + JDK-8245468: A...

Security update for java-1_8_0-openjdk (moderate)

openSUSE Security Update: Security update for java-180-openjdk Announcement ID: openSUSE-SU-2020:2083-1 Rating: moderate References: 1174157 1177943 Cross-References: CVE-2020-14556 CVE-2020-14577 CVE-2020-14578 CVE-2020-14579 CVE-2020-14581 CVE-2020-14583 CVE-2020-14593 CVE-2020-14621...

[ASA-202011-23] matrix-synapse: denial of service

Arch Linux Security Advisory ASA-202011-23 ========================================== Severity: High Date : 2020-11-26 CVE-ID : CVE-2020-26890 Package : matrix-synapse Type : denial of service Remote : Yes Link : https://security.archlinux.org/AVG-1296 Summary ======= The package matrix-synapse...

Security update for java-1_8_0-openjdk (moderate)

openSUSE Security Update: Security update for java-180-openjdk Announcement ID: openSUSE-SU-2020:2048-1 Rating: moderate References: 1174157 1177943 Cross-References: CVE-2020-14556 CVE-2020-14577 CVE-2020-14578 CVE-2020-14579 CVE-2020-14581 CVE-2020-14583 CVE-2020-14593 CVE-2020-14621...

Denial of service attack due to invalid JSON

Impact A denial of service attack against Matrix clients can be exploited by sending an event including invalid JSON data to Synapse. Synapse would relay the data to clients which could crash or hang. Impact is long-lasting if the event is made part of the room state. Patches At a minimum 8106 an...

raiden (>=0.100.2rc4, <=0.100.3rc1) potentially affected by CVE-2020-26890 via matrix-synapse (0.33.9)

matrix-synapse PYPI version 0.33.9 is affected by a known vulnerability. The following packages have a transitive dependency on matrix-synapse and may be impacted: - raiden =0.100.2rc4, =0.100.3rc1 Source cves: CVE-2020-26890 Source advisory: OSV:GHSA-4MP3-385R-V63F...

GHSA-4MP3-385R-V63F Denial of service attack due to invalid JSON

Impact A denial of service attack against Matrix clients can be exploited by sending an event including invalid JSON data to Synapse. Synapse would relay the data to clients which could crash or hang. Impact is long-lasting if the event is made part of the room state. Patches At a minimum 8106 an...

CVE-2020-26890

Matrix Synapse before 1.20.0 erroneously permits non-standard NaN, Infinity, and -Infinity JSON values in fields of m.room.member events, allowing remote attackers to execute a denial of service attack against the federation and common Matrix clients. If such a malformed event is accepted into th...

DEBIAN-CVE-2020-26890

Matrix Synapse before 1.20.0 erroneously permits non-standard NaN, Infinity, and -Infinity JSON values in fields of m.room.member events, allowing remote attackers to execute a denial of service attack against the federation and common Matrix clients. If such a malformed event is accepted into th...

CVE-2020-26890

Matrix Synapse before 1.20.0 erroneously permits non-standard NaN, Infinity, and -Infinity JSON values in fields of m.room.member events, allowing remote attackers to execute a denial of service attack against the federation and common Matrix clients. If such a malformed event is accepted into th...

raiden (>=0.100.2rc4, <=0.100.3rc1) potentially affected by CVE-2020-26890 via matrix-synapse (0.33.9)

matrix-synapse PYPI version 0.33.9 is affected by a known vulnerability. The following packages have a transitive dependency on matrix-synapse and may be impacted: - raiden =0.100.2rc4, =0.100.3rc1 Source cves: CVE-2020-26890 Source advisory: OSV:PYSEC-2020-237...

PYSEC-2020-237

Matrix Synapse before 1.20.0 erroneously permits non-standard NaN, Infinity, and -Infinity JSON values in fields of m.room.member events, allowing remote attackers to execute a denial of service attack against the federation and common Matrix clients. If such a malformed event is accepted into th...

Code injection

Matrix Synapse before 1.20.0 erroneously permits non-standard NaN, Infinity, and -Infinity JSON values in fields of m.room.member events, allowing remote attackers to execute a denial of service attack against the federation and common Matrix clients. If such a malformed event is accepted into th...