CVE catalog

CVE-2017-15723

irssi: CVE-2017-15723

Severity: High · CVSS 7.5CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published: Oct 22, 2017, 12:00:00 AM UTC
Source: [NVD] · [CVE record]
EPSS: 2.30% · Oct 25, 2026

In Irssi before 1.0.5, overlong nicks or targets may result in a NULL pointer dereference while splitting the message.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	irssi	sid	`1.4.5-1`	fixed
Debian	irssi	forky	`1.4.5-1`	fixed
Debian	irssi	trixie	`1.4.5-1`	fixed
Debian	irssi	bookworm	`1.4.3-2`	fixed
Alpine	irssi	3.10	`1.0.5-r0`	fixed
Alpine	irssi	3.11	`1.0.5-r0`	fixed
Alpine	irssi	3.12	`1.0.5-r0`	fixed
Alpine	irssi	3.13	`1.0.5-r0`	fixed
Alpine	irssi	3.14	`1.0.5-r0`	fixed
Alpine	irssi	3.15	`1.0.5-r0`	fixed
Alpine	irssi	3.16	`1.0.5-r0`	fixed
Alpine	irssi	3.17	`1.0.5-r0`	fixed
Alpine	irssi	3.6	`1.0.6-r0`	fixed
Alpine	irssi	3.7	`1.0.5-r0`	fixed
Alpine	irssi	3.8	`1.0.5-r0`	fixed
Alpine	irssi	3.9	`1.0.5-r0`	fixed
Ubuntu	irssi	16.04	`0.8.17-1ubuntu1`	vulnerable
Ubuntu	irssi	16.04	`0.8.17-1ubuntu2`	vulnerable
Ubuntu	irssi	16.04	`0.8.18-1ubuntu1`	vulnerable
Ubuntu	irssi	16.04	`0.8.19-1ubuntu1`	vulnerable
Ubuntu	irssi	16.04	`0.8.19-1ubuntu1.2`	vulnerable
Ubuntu	irssi	16.04	`0.8.19-1ubuntu1.3`	vulnerable
Ubuntu	irssi	16.04	`0.8.19-1ubuntu1.4`	vulnerable
Ubuntu	irssi	16.04	`0.8.19-1ubuntu1.5`	fixed

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	irssi	source	sid	`1.0.5-1`	not yet assigned	Not reported	[879521]
Debian	irssi	source	forky	`1.0.5-1`	not yet assigned	Not reported	[879521]
Debian	irssi	source	trixie	`1.0.5-1`	not yet assigned	Not reported	[879521]
Debian	irssi	source	bookworm	`1.0.5-1`	not yet assigned	Not reported	[879521]
Alpine	irssi	apk	3.10	`1.0.5-r0`	Not reported	ALPINE-CVE-2017-15723	Not reported
Alpine	irssi	apk	3.11	`1.0.5-r0`	Not reported	ALPINE-CVE-2017-15723	Not reported
Alpine	irssi	apk	3.12	`1.0.5-r0`	Not reported	ALPINE-CVE-2017-15723	Not reported
Alpine	irssi	apk	3.13	`1.0.5-r0`	Not reported	ALPINE-CVE-2017-15723	Not reported
Alpine	irssi	apk	3.14	`1.0.5-r0`	Not reported	ALPINE-CVE-2017-15723	Not reported
Alpine	irssi	apk	3.15	`1.0.5-r0`	Not reported	ALPINE-CVE-2017-15723	Not reported
Alpine	irssi	apk	3.16	`1.0.5-r0`	Not reported	ALPINE-CVE-2017-15723	Not reported
Alpine	irssi	apk	3.17	`1.0.5-r0`	Not reported	ALPINE-CVE-2017-15723	Not reported
Alpine	irssi	apk	3.6	`1.0.6-r0`	Not reported	ALPINE-CVE-2017-15723	Not reported
Alpine	irssi	apk	3.7	`1.0.5-r0`	Not reported	ALPINE-CVE-2017-15723	Not reported
Alpine	irssi	apk	3.8	`1.0.5-r0`	Not reported	ALPINE-CVE-2017-15723	Not reported
Alpine	irssi	apk	3.9	`1.0.5-r0`	Not reported	ALPINE-CVE-2017-15723	Not reported
Ubuntu	irssi	deb	16.04	`0.8.19-1ubuntu1.5`	Not reported	UBUNTU-CVE-2017-15723	Not reported

[Debian bug #879521]

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[irssi]Fixed
Details (4)
- 1.4.3-2 · amd64 · bookworm
  Fixed · Fixed: 1.0.5-1
  dsa · irssi · debian · bookworm; dsa · irssi · debian · 12
- 1.4.3-2 · arm64 · bookworm
  Fixed · Fixed: 1.0.5-1
  dsa · irssi · debian · bookworm; dsa · irssi · debian · 12
- 1.4.5-1~bpo12+1 · amd64 · bookworm-backports
  Fixed · Fixed: 1.0.5-1
  dsa · irssi · debian · bookworm; dsa · irssi · debian · 12
- 1.4.5-1~bpo12+1 · arm64 · bookworm-backports
  Fixed · Fixed: 1.0.5-1
  dsa · irssi · debian · bookworm; dsa · irssi · debian · 12
[irssi-dev]Fixed
Source package: [irssi]
Details (4)
- 1.4.3-2 · amd64 · bookworm
  Fixed · Fixed: 1.0.5-1
  dsa · irssi · debian · bookworm; dsa · irssi · debian · 12
- 1.4.3-2 · arm64 · bookworm
  Fixed · Fixed: 1.0.5-1
  dsa · irssi · debian · bookworm; dsa · irssi · debian · 12
- 1.4.5-1~bpo12+1 · amd64 · bookworm-backports
  Fixed · Fixed: 1.0.5-1
  dsa · irssi · debian · bookworm; dsa · irssi · debian · 12
- 1.4.5-1~bpo12+1 · arm64 · bookworm-backports
  Fixed · Fixed: 1.0.5-1
  dsa · irssi · debian · bookworm; dsa · irssi · debian · 12
[irssi-plugin-otr]Fixed
Source package: [irssi]
Details (4)
- 1.4.3-2 · amd64 · bookworm
  Fixed · Fixed: 1.0.5-1
  dsa · irssi · debian · bookworm; dsa · irssi · debian · 12
- 1.4.3-2 · arm64 · bookworm
  Fixed · Fixed: 1.0.5-1
  dsa · irssi · debian · bookworm; dsa · irssi · debian · 12
- 1.4.5-1~bpo12+1 · amd64 · bookworm-backports
  Fixed · Fixed: 1.0.5-1
  dsa · irssi · debian · bookworm; dsa · irssi · debian · 12
- 1.4.5-1~bpo12+1 · arm64 · bookworm-backports
  Fixed · Fixed: 1.0.5-1
  dsa · irssi · debian · bookworm; dsa · irssi · debian · 12

[Debian 13 (Trixie)]

[irssi]Fixed
Source package: [irssi]
Details (2)
- 1.4.5-1+b5 · amd64 · trixie
  Fixed · Fixed: 1.0.5-1
  dsa · irssi · debian · 13
- 1.4.5-1+b5 · arm64 · trixie
  Fixed · Fixed: 1.0.5-1
  dsa · irssi · debian · 13
[irssi-dev]Fixed
Source package: [irssi]
Details (2)
- 1.4.5-1+b5 · amd64 · trixie
  Fixed · Fixed: 1.0.5-1
  dsa · irssi · debian · 13
- 1.4.5-1+b5 · arm64 · trixie
  Fixed · Fixed: 1.0.5-1
  dsa · irssi · debian · 13
[irssi-plugin-otr]Fixed
Source package: [irssi]
Details (2)
- 1.4.5-1+b5 · amd64 · trixie
  Fixed · Fixed: 1.0.5-1
  dsa · irssi · debian · 13
- 1.4.5-1+b5 · arm64 · trixie
  Fixed · Fixed: 1.0.5-1
  dsa · irssi · debian · 13

Observed: Oct 23, 2026, 5:27:17 PM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]