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By the Year

In 2022 there have been 0 vulnerabilities in Matrix Javascript Sdk . Last year Javascript Sdk had 2 security vulnerabilities published. Right now, Javascript Sdk is on track to have less security vulnerabilities in 2022 than it did last year.

Year Vulnerabilities Average Score
2022 0 0.00
2021 2 7.85
2020 0 0.00
2019 0 0.00
2018 0 0.00

It may take a day or so for new Javascript Sdk vulnerabilities to show up in the stats or in the list of recent security vulnerabilties. Additionally vulnerabilities may be tagged under a different product or component name.

Recent Matrix Javascript Sdk Security Vulnerabilities

The olm_session_describe function in Matrix libolm before 3.2.7 is vulnerable to a buffer overflow

CVE-2021-44538 9.8 - Critical - December 14, 2021

The olm_session_describe function in Matrix libolm before 3.2.7 is vulnerable to a buffer overflow. The Olm session object represents a cryptographic channel between two parties. Therefore, its state is partially controllable by the remote party of the channel. Attackers can construct a crafted sequence of messages to manipulate the state of the receiver's session in such a way that, for some buffer sizes, a buffer overflow happens on a call to olm_session_describe. Furthermore, safe buffer sizes were undocumented. The overflow content is partially controllable by the attacker and limited to ASCII spaces and digits. The known affected products are Element Web And SchildiChat Web.

Classic Buffer Overflow

A logic error in the room key sharing functionality of matrix-js-sdk (aka Matrix Javascript SDK) before 12.4.1 allows a malicious Matrix homeserver present in an encrypted room to steal room encryption keys (via crafted Matrix protocol messages)

CVE-2021-40823 5.9 - Medium - September 13, 2021

A logic error in the room key sharing functionality of matrix-js-sdk (aka Matrix Javascript SDK) before 12.4.1 allows a malicious Matrix homeserver present in an encrypted room to steal room encryption keys (via crafted Matrix protocol messages) that were originally sent by affected Matrix clients participating in that room. This allows the homeserver to decrypt end-to-end encrypted messages sent by affected clients.

Use of a Broken or Risky Cryptographic Algorithm

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