Bug 1510958 – CVE-2017-15723 irssi: NULL pointer dereference due to overlong nicks while splitting the message

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Bug 1510958 - (CVE-2017-15723) CVE-2017-15723 irssi: NULL pointer dereference due to overlong nicks while splitting the message

Summary:	CVE-2017-15723 irssi: NULL pointer dereference due to overlong nicks while sp...

Status:	CLOSED NOTABUG

Aliases:	CVE-2017-15723

Product:	Security Response
Classification:	Other
Component:	vulnerability (Show other bugs)
Sub Component:
Version:	unspecified
Hardware:	All Linux

Priority	medium Severity medium
Target Milestone:	---
Target Release:	---
Assigned To:	Red Hat Product Security
QA Contact:
Docs Contact:

URL:
Whiteboard:	impact=moderate,public=20171022,repor...
Keywords:	Security

Depends On:	1510963
Blocks:	1510960
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Reported:	2017-11-08 08:30 EST by Andrej Nemec
Modified:	2017-12-14 05:01 EST (History)
CC List:	3 users (show)

See Also:
Fixed In Version:	irssi 1.0.5
Doc Type:	If docs needed, set a value
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Clone Of:
Environment:
Last Closed:	2017-12-14 05:01:13 EST
Type:	---
Regression:	---
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oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
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Description Andrej Nemec 2017-11-08 08:30:00 EST

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

External References:

https://irssi.org/security/irssi_sa_2017_10.txt

Comment 1 Andrej Nemec 2017-11-08 08:32:33 EST

Created irssi tracking bugs for this issue:

Affects: fedora-all [bug 1510963]

Comment 2 Stefan Cornelius 2017-12-14 05:01:13 EST

As far as I can tell, this was introduced sometime around version 0.8.17-rc2. The versions we ship are older.

Comment 3 Stefan Cornelius 2017-12-14 05:01:20 EST

Statement:

This issue did not affect the versions of irssi as shipped with Red Hat Enterprise Linux 6 and 7.

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