GitHub_MCVELIST:CVE-2023-38700CVE-2023-38700 matrix-appservice-irc events can be crafted to leak parts of targeted messages from other bridged rooms
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N
AI Score
Confidence
High
EPSS
Percentile
35.0%
matrix-appservice-irc is a Node.js IRC bridge for Matrix. Prior to version 1.0.1, it was possible to craft an event such that it would leak part of a targeted message event from another bridged room. This required knowing an event ID to target. Version 1.0.1n fixes this issue. As a workaround, set the matrixHandler.eventCacheSize config value to 0. This workaround may impact performance.
CNA Affected
[
{
"vendor": "matrix-org",
"product": "matrix-appservice-irc",
"versions": [
{
"version": "< 1.0.1",
"status": "affected"
}
]
}
]Related
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N
AI Score
Confidence
High
EPSS
Percentile
35.0%