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CVE-2017-15227

Published: 22 October 2017

Irssi before 1.0.5, while waiting for the channel synchronisation, may incorrectly fail to remove destroyed channels from the query list, resulting in use-after-free conditions when updating the state later on.

Priority

Medium

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
irssi
Launchpad, Ubuntu, Debian
artful
Released (1.0.4-1ubuntu2.1)
trusty
Released (0.8.15-5ubuntu3.3)
upstream
Released (1.0.5)
xenial
Released (0.8.19-1ubuntu1.5)
zesty
Released (0.8.20-2ubuntu2.2)
Patches:
upstream: https://github.com/irssi/irssi/commit/43e44d553d44e313003cee87e6ea5e24d68b84a1

Severity score breakdown

Parameter Value
Base score 7.5
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H