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: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: 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]