gomatrixserverlib and Dendrite vulnerable to incorrect parsing of the event default power level in event auth

Impact The power level parsing within gomatrixserverlib was failing to parse the "eventsdefault" key of the m.room.powerlevels event, defaulting the event default power level to zero in all cases. In rooms where the "eventsdefault" power level had been changed, this could result in events either...

Authorization Bypass

github.com/matrix-org/dendrite is vulnerable to authorization bypass. The vulnerability exists in the eventsdefault level in m.room.powerlevels events of eventcontent.go when defaulting the event default power level to zero in all cases, resulting in events either being incorrectly authorized or...

CVE-2022-36009

gomatrixserverlib is a Go library for matrix protocol federation. Dendrite is a Matrix homeserver written in Go, an alternative to Synapse. The power level parsing within gomatrixserverlib was failing to parse the "eventsdefault" key of the m.room.powerlevels event, defaulting the event default...

Design/Logic Flaw

gomatrixserverlib is a Go library for matrix protocol federation. Dendrite is a Matrix homeserver written in Go, an alternative to Synapse. The power level parsing within gomatrixserverlib was failing to parse the "eventsdefault" key of the m.room.powerlevels event, defaulting the event default...

CVE-2022-36009

gomatrixserverlib is a Go library for matrix protocol federation. Dendrite is a Matrix homeserver written in Go, an alternative to Synapse. The power level parsing within gomatrixserverlib was failing to parse the "eventsdefault" key of the m.room.powerlevels event, defaulting the event default...

CVE-2022-36009 Incorrect parsing of access level in gomatrixserverlib and dendrite

gomatrixserverlib is a Go library for matrix protocol federation. Dendrite is a Matrix homeserver written in Go, an alternative to Synapse. The power level parsing within gomatrixserverlib was failing to parse the "eventsdefault" key of the m.room.powerlevels event, defaulting the event default...

CVE-2022-36009 Incorrect parsing of access level in gomatrixserverlib and dendrite

gomatrixserverlib is a Go library for matrix protocol federation. Dendrite is a Matrix homeserver written in Go, an alternative to Synapse. The power level parsing within gomatrixserverlib was failing to parse the "eventsdefault" key of the m.room.powerlevels event, defaulting the event default...

CVE-2022-36009 Incorrect parsing of access level in gomatrixserverlib and dendrite

gomatrixserverlib is a Go library for matrix protocol federation. Dendrite is a Matrix homeserver written in Go, an alternative to Synapse. The power level parsing within gomatrixserverlib was failing to parse the "eventsdefault" key of the m.room.powerlevels event, defaulting the event default...

CVE-2022-36009

CVE-2022-36009 affects gomatrixserverlib (Matrix federation library) and the Dendrite server. The root cause was incorrect parsing of the m.room.power_levels events_default field, which could cause events to be improperly authorized or rejected in rooms where events_default had been changed. A fi...

CVE-2022-36009: Incorrect Authorization

gomatrixserverlib is a Go library for matrix protocol federation. Dendrite is a Matrix homeserver written in Go, an alternative to Synapse. The power level parsing within gomatrixserverlib was failing to parse the "eventsdefault" key of the m.room.powerlevels event, defaulting the event default...

PT-2022-23108 · Unknown +1 · Gomatrixserverlib +1

Name of the Vulnerable Software and Affected Versions: Dendrite versions prior to 0.9.3 gomatrixserverlib versions prior to commit 723fd49 Description: The power level parsing within gomatrixserverlib was failing to parse the "events default" key of the m.room.power levels event, defaulting the...

FreeBSD : dendrite -- Incorrect parsing of the event default power level in event auth (d658042c-1c98-11ed-95f8-901b0e9408dc)

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the d658042c-1c98-11ed-95f8-901b0e9408dc advisory. - Dendrite team reports: The power level parsing within gomatrixserverlib was failing to parse the...

dendrite -- Incorrect parsing of the event default power level in event auth

Dendrite team reports: The power level parsing within gomatrixserverlib was failing to parse the "eventsdefault" key of the m.room.powerlevels event, defaulting the event default power level to zero in all cases. In rooms where the "eventsdefault" power level had been changed, this could result i...