Bug 1510956 (CVE-2017-15722)

Summary:	CVE-2017-15722 irssi: Out-of-bounds access while verifying that a Safe channel ID is long enough
Product:	[Other] Security Response	Reporter:	Andrej Nemec <anemec>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED WONTFIX	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	huzaifas, jskarvad, mmahut
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	irssi 1.0.5	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2018-01-10 17:02:14 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1510963
Bug Blocks:	1510960

Description Andrej Nemec 2017-11-08 13:28:59 UTC

In certain cases, Irssi before 1.0.5 may fail to verify that a Safe channel ID is long enough, causing reads beyond the end of the string. 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 13:32:51 UTC

Created irssi tracking bugs for this issue:

Affects: fedora-all [bug 1510963]

Comment 2 Stefan Cornelius 2018-01-10 17:02:14 UTC

Patch:
https://github.com/irssi/irssi/commit/43e44d553d44e313003cee87e6ea5e24d68b84a1

Comment 3 Stefan Cornelius 2018-01-10 17:02:37 UTC

Statement:

Red Hat Product Security has rated this issue as having Moderate security impact. This issue is not currently planned to be addressed in future updates. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.

Red Hat Enterprise Linux 5 is now in Extended Life Cycle phase of the support and maintenance life cycle. This issue is not currently planned to be addressed in future updates. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata/.

Red Hat Enterprise Linux 6 is now in Production 3 Phase of the support and maintenance life cycle. This has been rated as having Moderate security impact and is not currently planned to be addressed in future updates. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata/.