CVE-2022-29166

Improper handling of multiline messages in matrix-appservice-irc

Description

matrix-appservice-irc is a Node.js IRC bridge for Matrix. The vulnerability in node-irc allows an attacker to manipulate a Matrix user into executing IRC commands by having them reply to a maliciously crafted message. The vulnerability has been patched in matrix-appservice-irc 0.33.2. Refrain from replying to messages from untrusted participants in IRC-bridged Matrix rooms. There are no known workarounds for this issue.

Category

8.0
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.74% Top 30%
Vendor Advisory matrix.org
Affected: matrix-org matrix-appservice-irc
Published at:
Updated at:

References

Link Tags
https://github.com/matrix-org/matrix-appservice-irc/security/advisories/GHSA-37hr-348p-rmf4 third party advisory
https://matrix.org/blog/2022/05/04/0-34-0-security-release-for-matrix-appservice-irc-high-severity release notes vendor advisory

Frequently Asked Questions

What is the severity of CVE-2022-29166?
CVE-2022-29166 has been scored as a high severity vulnerability.
How to fix CVE-2022-29166?
To fix CVE-2022-29166, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-29166 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-29166 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-29166?
CVE-2022-29166 affects matrix-org matrix-appservice-irc.
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