Описание
Matrix Javascript SDK is the Matrix Client-Server SDK for JavaScript. Prior to version 19.7.0, an attacker cooperating with a malicious homeserver can construct messages that legitimately appear to have come from another person, without any indication such as a grey shield. Additionally, a sophisticated attacker cooperating with a malicious homeserver could employ this vulnerability to perform a targeted attack in order to send fake to-device messages appearing to originate from another user. This can allow, for example, to inject the key backup secret during a self-verification, to make a targeted device start using a malicious key backup spoofed by the homeserver. These attacks are possible due to a protocol confusion vulnerability that accepts to-device messages encrypted with Megolm instead of Olm. Starting with version 19.7.0, matrix-js-sdk has been modified to only accept Olm-encrypted to-device messages. Out of caution, several other checks have been audited or added. This at...
| Релиз | Статус | Примечание |
|---|---|---|
| bionic | DNE | |
| devel | DNE | |
| esm-apps/focal | needs-triage | |
| esm-apps/jammy | needs-triage | |
| esm-apps/noble | needs-triage | |
| focal | ignored | end of standard support, was needs-triage |
| jammy | needs-triage | |
| kinetic | ignored | end of life, was needs-triage |
| lunar | ignored | end of life, was needs-triage |
| mantic | ignored | end of life, was needs-triage |
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| Релиз | Статус | Примечание |
|---|---|---|
| bionic | released | 1:102.4.2+build2-0ubuntu0.18.04.1 |
| devel | not-affected | 1:102.6.0+build1-0ubuntu1 |
| esm-infra-legacy/trusty | DNE | |
| esm-infra/focal | DNE | |
| focal | released | 1:102.4.2+build2-0ubuntu0.20.04.1 |
| jammy | released | 1:102.4.2+build2-0ubuntu0.22.04.1 |
| kinetic | released | 1:102.4.2+build2-0ubuntu0.22.10.1 |
| lunar | not-affected | 1:102.6.0+build1-0ubuntu1 |
| mantic | not-affected | 1:102.6.0+build1-0ubuntu1 |
| noble | not-affected | 1:102.6.0+build1-0ubuntu1 |
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Ссылки на источники
EPSS
8.6 High
CVSS3
Связанные уязвимости
Matrix Javascript SDK is the Matrix Client-Server SDK for JavaScript. Prior to version 19.7.0, an attacker cooperating with a malicious homeserver can construct messages that legitimately appear to have come from another person, without any indication such as a grey shield. Additionally, a sophisticated attacker cooperating with a malicious homeserver could employ this vulnerability to perform a targeted attack in order to send fake to-device messages appearing to originate from another user. This can allow, for example, to inject the key backup secret during a self-verification, to make a targeted device start using a malicious key backup spoofed by the homeserver. These attacks are possible due to a protocol confusion vulnerability that accepts to-device messages encrypted with Megolm instead of Olm. Starting with version 19.7.0, matrix-js-sdk has been modified to only accept Olm-encrypted to-device messages. Out of caution, several other checks have been audited or added. This at...
Matrix Javascript SDK is the Matrix Client-Server SDK for JavaScript. Prior to version 19.7.0, an attacker cooperating with a malicious homeserver can construct messages that legitimately appear to have come from another person, without any indication such as a grey shield. Additionally, a sophisticated attacker cooperating with a malicious homeserver could employ this vulnerability to perform a targeted attack in order to send fake to-device messages appearing to originate from another user. This can allow, for example, to inject the key backup secret during a self-verification, to make a targeted device start using a malicious key backup spoofed by the homeserver. These attacks are possible due to a protocol confusion vulnerability that accepts to-device messages encrypted with Megolm instead of Olm. Starting with version 19.7.0, matrix-js-sdk has been modified to only accept Olm-encrypted to-device messages. Out of caution, several other checks have been audited or added. This attac
Matrix Javascript SDK is the Matrix Client-Server SDK for JavaScript. ...
matrix-js-sdk subject to user spoofing via Olm/Megolm protocol confusion
EPSS
8.6 High
CVSS3