CVE-2020-14457: Undefined Security Weakness

An issue was discovered in Mattermost Server before 5.20.0. Non-members can receive broadcasted team details via the updateteam WebSocket event, aka MMSA-2020-0012...

CVE-2018-21260: Exposure of Sensitive Information to an Unauthorized Actor

An issue was discovered in Mattermost Server before 4.8.1, 4.7.4, and 4.6.3. WebSocket events were accidentally sent during certain user-management operations, violating user privacy...

PT-2020-14017 · Mattermost · Mattermost Server

Name of the Vulnerable Software and Affected Versions: Mattermost Server versions prior to 5.20.0 Description: An issue was discovered in Mattermost Server where non-members can receive broadcasted team details via the update team WebSocket event. Recommendations: For versions prior to 5.20.0,...

LibVNCServer Buffer Overflow Vulnerability (CNVD-2020-36781)

LibVNCServer is a cross-platform C library that supports the implementation of VNC Virtual Network Computing server or client functionality in programs. A security vulnerability exists in the 'hybiReadAndDecode' function in the libvncserver/wsdecode.c file in versions of LibVNCServer prior to...

UBUNTU-CVE-2019-20840

An issue was discovered in LibVNCServer before 0.9.13. libvncserver/wsdecode.c can lead to a crash because of unaligned accesses in hybiReadAndDecode...

Websocket Extensions Denial of Service (CVE-2020-7662; CVE-2020-7663)

A denial-of-service vulnerability exists in Websocket Extensions. Successful exploitation of this vulnerability could cause a denial-of-service condition...

CVE-2020-7663

A flaw was found in the websocket-extensions ruby module in versions prior to 0.1.5. The parser may take quadratic time when parsing a header containing an unclosed string parameter value whose content is a repeating two-byte sequence of a backslash and another character. When abused by an...

Information Disclosure

apollo-server-cloudflare is vulnerable to information leakage. Lack of validation rules enforcement during the subscription server creation with NoInstrospection rule for websockets exposes GraphQL schema types, their relations, human-readable names and many More information on the references...

Information Exposure

Overview Versions of apollo-server-koa prior to 2.14.2 are vulnerable to Information Exposure. The package does not properly enforce validation rules when creating subscription servers, which includes a NoInstrospection rule for the Websocket. This leaks the GraphQL schema types, their relations...

Information Exposure

Overview Versions of apollo-server-hapi prior to 2.14.2 are vulnerable to Information Exposure. The package does not properly enforce validation rules when creating subscription servers, which includes a NoInstrospection rule for the Websocket. This leaks the GraphQL schema types, their relations...

Information Exposure

Overview Versions of apollo-server-fastify prior to 2.14.2 are vulnerable to Information Exposure. The package does not properly enforce validation rules when creating subscription servers, which includes a NoInstrospection rule for the Websocket. This leaks the GraphQL schema types, their...

Information Exposure

Overview Versions of apollo-server-cloud-functions prior to 2.14.2 are vulnerable to Information Exposure. The package does not properly enforce validation rules when creating subscription servers, which includes a NoInstrospection rule for the Websocket. This leaks the GraphQL schema types, thei...

Introspection in schema validation in Apollo Server

We encourage all users of Apollo Server to read this advisory in its entirety to understand the impact. The Resolution section contains details on patched versions. Impact If subscriptions: false is passed to the ApolloServer constructor options, there is no impact. If implementors were not...

Regular Expression Denial of Service in websocket-extensions (NPM package)

Impact The ReDoS flaw allows an attacker to exhaust the server's capacity to process incoming requests by sending a WebSocket handshake request containing a header of the following form: Sec-WebSocket-Extensions: a; b="\c\c\c\c\c\c\c\c\c\c ... That is, a header containing an unclosed string...

GHSA-G78M-2CHM-R7QV Regular Expression Denial of Service in websocket-extensions (NPM package)

Impact The ReDoS flaw allows an attacker to exhaust the server's capacity to process incoming requests by sending a WebSocket handshake request containing a header of the following form: Sec-WebSocket-Extensions: a; b="\c\c\c\c\c\c\c\c\c\c ... That is, a header containing an unclosed string...

GHSA-G6WQ-QCWM-J5G2 Regular Expression Denial of Service in websocket-extensions (RubyGem)

Impact The ReDoS flaw allows an attacker to exhaust the server's capacity to process incoming requests by sending a WebSocket handshake request containing a header of the following form: Sec-WebSocket-Extensions: a; b="\c\c\c\c\c\c\c\c\c\c ... That is, a header containing an unclosed string...

Regular Expression Denial of Service in websocket-extensions (RubyGem)

Impact The ReDoS flaw allows an attacker to exhaust the server's capacity to process incoming requests by sending a WebSocket handshake request containing a header of the following form: Sec-WebSocket-Extensions: a; b="\c\c\c\c\c\c\c\c\c\c ... That is, a header containing an unclosed string...

Regular Expression Denial of Service in websocket-extensions (RubyGem)

Impact The ReDoS flaw allows an attacker to exhaust the server's capacity to process incoming requests by sending a WebSocket handshake request containing a header of the following form: Sec-WebSocket-Extensions: a; b="\c\c\c\c\c\c\c\c\c\c ... That is, a header containing an unclosed string...

FreeBSD : websocket-extensions -- ReDoS vulnerability (ca8327f7-a5a5-11ea-a860-08002728f74c)

Changelog : Remove a ReDoS vulnerability in the header parser CVE-2020-7663 C Tenable Network Security, Inc. The descriptive text and package checks in this plugin were extracted from the FreeBSD VuXML database : Copyright 2003-2020 Jacques Vidrine and contributors Redistribution and use in sourc...

Regular Expression Denial Of Service (ReDoS)

websocket-extensions is vulnerable to regular expression denial of service ReDoS. The vulnerability exists in the regular expression used to parse quotes, allowing an unclosed string parameter value, of a repeating two-byte sequence of a backslash and another character, to parse in quadratic time...