Bug 1546275 (CVE-2018-7051)

Summary:	CVE-2018-7051 irssi: out-of-bounds access when printing theme strings with certain nick names
Product:	[Other] Security Response	Reporter:	Laura Pardo <lpardo>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED WONTFIX	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	huzaifas, jskarvad, rschiron
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	irssi 1.0.7, irssi 1.1.1	Doc Type:	If docs needed, set a value
Doc Text:	An out of bound read was found in Irssi, version 0.8.7 and later, when dealing with malformed theme strings. An attacker could trigger the vulnerability by using specific nick names that could potentially cause a crash in the application.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-06-08 03:40:13 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:	1546316, 1563293, 1563294, 1563295
Bug Blocks:	1546283

Description Laura Pardo 2018-02-16 19:22:11 UTC

An issue was discovered in Irssi 0.8.7 and later in function
theme_format_expand_abstract of fe-common/core/themes.c file. Certain nick names
could result in out-of-bounds access when printing malformed theme strings.

Upstream commit:
https://github.com/irssi/irssi/commit/e0c66e31224894674356ddaf6d46016c1abc994f

Upstream patch:
https://github.com/irssi/irssi/commit/e32e9d63c67ab95ef0576154680a6c52334b97af

References:
https://irssi.org/security/irssi_sa_2018_02.txt

Comment 1 Laura Pardo 2018-02-16 20:12:12 UTC

Created irssi tracking bugs for this issue:

Affects: fedora-all [bug 1546316]