Bug 2077323 (CVE-2022-29536)

Summary:	CVE-2022-29536 epiphany: a client buffer overflow (in ephy_string_shorten in the UI process) via a long page title
Product:	[Other] Security Response	Reporter:	Sandipan Roy <saroy>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	gecko-bugs-nobody, gnome-sig, jhorak, mcatanza, mclasen, peter, rhughes, rstrode, sandmann, tpopela
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
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Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2022-04-21 07:01:37 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:	2077324
Bug Blocks:

Description Sandipan Roy 2022-04-21 04:15:17 UTC

In GNOME Epiphany before 41.4 and 42.x before 42.2, an HTML document can trigger a client buffer overflow (in ephy_string_shorten in the UI process) via a long page title. The issue occurs because the number of bytes for a UTF-8 ellipsis character is not properly considered.

https://gitlab.gnome.org/GNOME/epiphany/-/merge_requests/1106

Comment 1 Sandipan Roy 2022-04-21 04:15:35 UTC

Created epiphany tracking bugs for this issue:

Affects: fedora-all [bug 2077324]

Comment 2 Product Security DevOps Team 2022-04-21 07:01:35 UTC

This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.