Bug 1610941 (CVE-2018-14682)

Summary: CVE-2018-14682 libmspack: off-by-one error in the TOLOWER() macro for CHM decompression
Product: [Other] Security Response Reporter: Laura Pardo <lpardo>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: dan, rjones
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Fixed In Version: libmspack 0.7alpha Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2019-06-10 10:34:53 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Bug Depends On: 1610942, 1610943, 1610944, 1611553    
Bug Blocks: 1610945    

Description Laura Pardo 2018-08-01 16:33:41 UTC
An issue was discovered in mspack/chmd.c in libmspack before 0.7alpha. There is an off-by-one error in the TOLOWER() macro for CHM decompression.


Upstream Patch:

Comment 1 Laura Pardo 2018-08-01 16:34:35 UTC
Created libmspack tracking bugs for this issue:

Affects: epel-all [bug 1610944]
Affects: fedora-all [bug 1610942]

Comment 3 Stefan Cornelius 2018-08-02 10:38:38 UTC

This issue affects the versions of libmspack as shipped with Red Hat Enterprise Linux 7.

Comment 5 errata-xmlrpc 2018-10-30 07:59:48 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2018:3327 https://access.redhat.com/errata/RHSA-2018:3327