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Date: Thu, 29 Aug 2019 17:59:34 +0200
From: Ailin Nemui <>
To: oss-security <>
Subject: Irssi 1.2.2:CVE-2019-15717

IRSSI-SA-2019-08 Irssi Security Advisory [1]


(a) Use after free when receiving duplicate CAP found by Joseph Bisch.

    CVE-2019-15717 [2] was assigned to this issue.


May affect the stability of Irssi.

Affected versions

(a) Irssi 1.2.0 and later

Fixed in

Irssi 1.2.2

Recommended action

Upgrade to Irssi 1.2.2. We've published maintenance releases, without
any new features.

After installing the updated packages, one can issue the /upgrade
command to load the new binary. TLS connections will require /reconnect.

Mitigating facts

Most servers do not send duplicate CAP



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