Bug 1610896 – CVE-2018-14681 libmspack: out-of-bounds write in kwajd_read_headers in mspack/kwajd.c

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Bug 1610896 - (CVE-2018-14681) CVE-2018-14681 libmspack: out-of-bounds write in kwajd_read_headers in mspack/kwajd.c

Summary:	CVE-2018-14681 libmspack: out-of-bounds write in kwajd_read_headers in mspack...

Status:	NEW

Aliases:	CVE-2018-14681

Product:	Security Response
Classification:	Other
Component:	vulnerability (Show other bugs)
Sub Component:
Version:	unspecified
Hardware:	All Linux

Priority	low Severity low
Target Milestone:	---
Target Release:	---
Assigned To:	Red Hat Product Security
QA Contact:
Docs Contact:

URL:
Whiteboard:	impact=low,public=20171126,reported=2...
Keywords:	Security

Depends On:	1610897 1610898 1610933 1611551
Blocks:	1610945
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Reported:	2018-08-01 10:53 EDT by Laura Pardo
Modified:	2018-10-30 03:59 EDT (History)
CC List:	2 users (show)

See Also:
Fixed In Version:	libmspack 0.7alpha
Doc Type:	If docs needed, set a value
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Environment:
Last Closed:
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Regression:	---
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oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
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External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHSA-2018:3327	None	None	None	2018-10-30 03:59 EDT

Groups: None (edit)

Description Laura Pardo 2018-08-01 10:53:45 EDT

An issue was discovered in kwajd_read_headers in mspack/kwajd.c in libmspack before 0.7alpha. A maliciously crafted KWAJ file header extensions could cause a one or two byte overwrite.


References:
http://openwall.com/lists/oss-security/2018/07/28/1
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=904799

Upstream patch:
https://github.com/kyz/libmspack/commit/0b0ef9344255ff5acfac6b7af09198ac9c9756c8

Comment 1 Laura Pardo 2018-08-01 10:54:10 EDT

Created libmspack tracking bugs for this issue:

Affects: fedora-all [bug 1610897]

Comment 3 Laura Pardo 2018-08-01 12:25:52 EDT

Created libmspack tracking bugs for this issue:

Affects: epel-all [bug 1610933]

Comment 4 Stefan Cornelius 2018-08-02 06:38:52 EDT

Statement:

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

Comment 6 errata-xmlrpc 2018-10-30 03:59:38 EDT

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

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