Bug 1765752 (CVE-2019-17544)

Summary:	CVE-2019-17544 aspell: stack-based buffer over-read in acommon::unescape in common/getdata.cpp
Product:	[Other] Security Response	Reporter:	Guilherme de Almeida Suckevicz <gsuckevi>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	jchaloup, nforro
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	aspell 0.68.8	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2021-10-25 09:55:41 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:	1765754, 1809627, 1809628
Bug Blocks:	1765755

Description Guilherme de Almeida Suckevicz 2019-10-25 20:59:06 UTC

libaspell.a in GNU Aspell before 0.60.8 has a stack-based buffer over-read in acommon::unescape in common/getdata.cpp via an isolated \ character.

Reference:
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=16109

Upstream commit:
https://github.com/GNUAspell/aspell/commit/80fa26c74279fced8d778351cff19d1d8f44fe4e

Comment 2 Guilherme de Almeida Suckevicz 2019-10-25 21:04:37 UTC

Created aspell tracking bugs for this issue:

Affects: fedora-all [bug 1765754]