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Fencer Intel
high 7.5

CVE-2017-15227 json

Irssi before 1.0.5, while waiting for the channel synchronisation, may incorrectly fail to remove destroyed channels from the query list, r…

published 9y ago modified 4mo ago also EUVD-2017-6687

cvss
7.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.1%
EPSS 2.1% chance of exploitation in 30 days, percentile 81%
public exploits
0
none known

Summary

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.

Patch / fix

  • irssi Debian 14, Debian 13, Debian 12 1.0.5-1

debian advisories DEBIAN-CVE-2017-15227

  • irssi Ubuntu 14.04 LTS 0.8.15-5ubuntu3.3
  • irssi Ubuntu 16.04 LTS 0.8.19-1ubuntu1.5

ubuntu advisories UBUNTU-CVE-2017-15227

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • irssi openSUSE Tumbleweed 1.2.3-2.4
  • irssi Package Hub 12 1.0.5-32.1

opensuse advisories openSUSE-SU-2024:10865-1openSUSE-SU-2017:2832-1openSUSE-SU-2017:2835-1

  • irssi Alpine 3.24, Alpine 3.23, Alpine 3.22 +15 more 1.0.5-r0
  • irssi Alpine 3.6 1.0.6-r0

alpine advisories ALPINE-CVE-2017-15227

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • irssi Arch Linux 1.0.5-1

arch linux advisories AVG-461

Is CVE-2017-15227 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2017-15227 updated cvss 7.5

irssi: Use-after-free due to failures to remove destroyed channels from the query list

  • Red Hat Enterprise Linux 6 irssi Red Hat Enterprise Linux 7 irssi
    affected: no fix planned “Will not fix”

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

2.08% chance of exploitation in the next 30 days, higher than 81% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P

Classification

Weakness

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.