Bug 1074958 (CVE-2018-5206)

Summary:	VUL-0: irssi: 1.0.6: CVE-2018-5206, CVE-2018-5205, CVE-2018-5208, CVE-2018-5207
Product:	[openSUSE] openSUSE Distribution	Reporter:	Marcus Meissner <meissner>
Component:	Other	Assignee:	Security Team bot <security-team>
Status:	RESOLVED FIXED	QA Contact:	Security Team bot <security-team>
Severity:	Normal
Priority:	P3 - Medium	CC:	ailin.nemui, astieger
Version:	Leap 42.3
Target Milestone:	---
Hardware:	Other
OS:	Other
URL:	https://smash.suse.de/issue/197780/
Whiteboard:	CVSSv3:RedHat:CVE-2018-5207:5.5:(AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H) CVSSv3:RedHat:CVE-2018-5208:5.0:(AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H)
Found By:	Security Response Team	Services Priority:
Business Priority:		Blocker:	---
Marketing QA Status:	---	IT Deployment:	---

Description Marcus Meissner 2018-01-08 07:54:20 UTC

Irssi 1.0.6: CVE-2018-5206, CVE-2018-5205, CVE-2018-5208, CVE-2018-5207 From: Ailin Nemui <ailin.nemui () gmail com>
Date: Sat, 06 Jan 2018 15:13:38 +0100

IRSSI-SA-2018-01 Irssi Security Advisory [1]
============================================
CVE-2018-5206, CVE-2018-5205, CVE-2018-5208, CVE-2018-5207

Description
-----------

Multiple vulnerabilities have been located in Irssi.

(a) When the channel topic is set without specifying a sender, Irssi
    may dereference NULL pointer. Found by Joseph Bisch. (CWE-476)

    CVE-2018-5206 was assigned to this issue.

(b) When using incomplete escape codes, Irssi may access data beyond
    the end of the string. (CWE-126) Found by Joseph Bisch.

    CVE-2018-5205 was assigned to this issue.

(c) A calculation error in the completion code could cause a heap
    buffer overflow when completing certain strings. (CWE-126) Found
    by Joseph Bisch.

    CVE-2018-5208 was assigned to this issue.

(d) When using an incomplete variable argument, Irssi may access data
    beyond the end of the string. (CWE-126) Found by Joseph Bisch.

    CVE-2018-5207 was assigned to this issue.


Impact
------

May affect the stability of Irssi.


Affected versions
-----------------

(a,b,c,d) All Irssi versions that we observed.


Fixed in
--------

Irssi 1.0.6


Recommended action
------------------

Upgrade to Irssi 1.0.6. Irssi 1.0.6 is a maintenance release in the
1.0 series, 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
----------------

(a) requires a broken ircd or control over the ircd

(b,d) requires user to install malicious or broken files or enter
      affected commands


Patch
-----
https://github.com/irssi/irssi/releases/download/1.0.6/irssi-1.0.5_1.0.
6.diff


References
----------

[1] https://irssi.org/security/irssi_sa_2018_01.txt

Comment 1 Ailin Nemui 2018-01-08 08:46:40 UTC

I opened https://build.opensuse.org/request/show/562176

Comment 2 Andreas Stieger 2018-01-09 17:57:12 UTC

done

Comment 3 Swamp Workflow Management 2018-01-09 23:07:17 UTC

openSUSE-SU-2018:0057-1: An update that fixes four vulnerabilities is now available.

Category: security (moderate)
Bug References: 1074958
CVE References: CVE-2018-5205,CVE-2018-5206,CVE-2018-5207,CVE-2018-5208
Sources used:
SUSE Package Hub for SUSE Linux Enterprise 12 (src):    irssi-1.0.6-36.1

Comment 4 Swamp Workflow Management 2018-01-09 23:07:33 UTC

openSUSE-SU-2018:0058-1: An update that fixes four vulnerabilities is now available.

Category: security (moderate)
Bug References: 1074958
CVE References: CVE-2018-5205,CVE-2018-5206,CVE-2018-5207,CVE-2018-5208
Sources used:
openSUSE Leap 42.3 (src):    irssi-1.0.6-21.1
openSUSE Leap 42.2 (src):    irssi-1.0.6-14.18.1