PT-2022-26135 · Matrix · Element Ios

Name of the Vulnerable Software and Affected Versions: Element iOS versions prior to 1.9.7 Description: The issue affects the Element iOS client, which is based on MatrixSDK. Prior to version 1.9.7, events encrypted using Megolm for which trust could not be established did not get decorated...

CVE-2022-41904 Element iOS is vulnerable due to missing decoration for events decrypted with untrusted Megolm sessions

Element iOS is an iOS Matrix client provided by Element. It is based on MatrixSDK. Prior to version 1.9.7, events encrypted using Megolm for which trust could not be established did not get decorated accordingly with warning shields. Therefore a malicious homeserver could inject messages into the...

CVE-2022-41904 Element iOS is vulnerable due to missing decoration for events decrypted with untrusted Megolm sessions

Element iOS is an iOS Matrix client provided by Element. It is based on MatrixSDK. Prior to version 1.9.7, events encrypted using Megolm for which trust could not be established did not get decorated accordingly with warning shields. Therefore a malicious homeserver could inject messages into the...

GHSA-FPGF-PJJV-2QGM matrix-android-sdk2 vulnerable to Olm/Megolm protocol confusion

Impact 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...

matrix-android-sdk2 vulnerable to impersonation via forwarded Megolm sessions

Impact An attacker cooperating with a malicious homeserver can construct messages appearing to have come from another person. Such messages will be marked with a grey shield on some platforms, but this may be missing in others. This attack is possible due to the matrix-android-sdk2 implementing a...

GHSA-2PVJ-P485-CP3M matrix-android-sdk2 vulnerable to impersonation via forwarded Megolm sessions

Impact An attacker cooperating with a malicious homeserver can construct messages appearing to have come from another person. Such messages will be marked with a grey shield on some platforms, but this may be missing in others. This attack is possible due to the matrix-android-sdk2 implementing a...

GHSA-R48R-J8FX-MQ2C matrix-js-sdk subject to user spoofing via Olm/Megolm protocol confusion

Impact 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...

matrix-js-sdk subject to user spoofing via Olm/Megolm protocol confusion

Impact 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...

Impersonation Via Forwarded Megolm Sessions

MatrixSDK is vulnerable to impersonation via forwarded Megolm sessions. The use of a too permissive key forwarding strategy in MatrixSDK allows an attacker having coordination with a malicious homeserver to construct messages appearing to have come from another person and the default policy for...

Type confusion

Matrix iOS SDK allows developers to build iOS apps compatible with Matrix. Prior to version 0.23.19, 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...

CVE-2022-39257 Matrix iOS SDK vulnerable to impersonation via forwarded Megolm sessions

Matrix iOS SDK allows developers to build iOS apps compatible with Matrix. Prior to version 0.23.19, an attacker cooperating with a malicious homeserver can construct messages appearing to have come from another person. Such messages will be marked with a grey shield on some platforms, but this m...

CVE-2022-39255 Matrix iOS SDK vulnerable ton Olm/Megolm protocol confusion

Matrix iOS SDK allows developers to build iOS apps compatible with Matrix. Prior to version 0.23.19, 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...

CVE-2022-39255 Matrix iOS SDK vulnerable ton Olm/Megolm protocol confusion

Matrix iOS SDK allows developers to build iOS apps compatible with Matrix. Prior to version 0.23.19, 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...

CVE-2022-39251

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...

CVE-2022-39248

matrix-android-sdk2 is the Matrix SDK for Android. Prior to version 1.5.1, 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...

Design/Logic Flaw

matrix-android-sdk2 is the Matrix SDK for Android. Prior to version 1.5.1, 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...

CVE-2022-39251

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...

CVE-2022-39248 matrix-android-sdk2 vulnerable to Olm/Megolm protocol confusion

matrix-android-sdk2 is the Matrix SDK for Android. Prior to version 1.5.1, 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...

CVE-2022-39246 matrix-android-sdk2 vulnerable to impersonation via forwarded Megolm sessions

matrix-android-sdk2 is the Matrix SDK for Android. Prior to version 1.5.1, an attacker cooperating with a malicious homeserver can construct messages appearing to have come from another person. Such messages will be marked with a grey shield on some platforms, but this may be missing in others...

CVE-2022-39251 Matrix Javascript SDK vulnerable to Olm/Megolm protocol confusion

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...