Bug 1483909 – CVE-2017-6419 libmspack, clamav: heap-based buffer overflow in mspack/lzxd.c

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Bug 1483909 - (CVE-2017-6419) CVE-2017-6419 libmspack, clamav: heap-based buffer overflow in mspack/lzxd.c

Summary:	CVE-2017-6419 libmspack, clamav: heap-based buffer overflow in mspack/lzxd.c

Status:	CLOSED ERRATA

Aliases:	CVE-2017-6419

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

Priority	medium Severity medium
Target Milestone:	---
Target Release:	---
Assigned To:	Red Hat Product Security
QA Contact:
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URL:
Whiteboard:	impact=moderate,public=20170329,repor...
Keywords:	Security

Depends On:	1483911 1483912 1483999 1484000
Blocks:
	Show dependency tree / graph

Reported:	2017-08-22 05:09 EDT by Adam Mariš
Modified:	2018-09-26 01:46 EDT (History)
CC List:	12 users (show)

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Last Closed:	2018-09-26 01:46:36 EDT
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Description Adam Mariš 2017-08-22 05:09:07 EDT

mspack/lzxd.c in libmspack 0.5alpha, as used in ClamAV 0.99.2, allows
remote attackers to cause a denial of service (heap-based buffer
overflow and application crash) or possibly have unspecified other
impact via a crafted CHM file.

Upstream patch:

https://github.com/vrtadmin/clamav-devel/commit/a83773682e856ad6529ba6db8d1792e6d515d7f1

Comment 1 Adam Mariš 2017-08-22 05:10:29 EDT

Created clamav tracking bugs for this issue:

Affects: epel-all [bug 1483912]
Affects: fedora-all [bug 1483911]

Comment 2 Adam Mariš 2017-08-22 08:46:12 EDT

Created libmspack tracking bugs for this issue:

Affects: fedora-all [bug 1483999]

Comment 3 Adam Mariš 2017-08-22 08:48:14 EDT

Created libmspack tracking bugs for this issue:

Affects: epel-all [bug 1484000]

Comment 4 Sergio Monteiro Basto 2018-01-10 23:08:39 EST

Same as bug 1472776#c7 libclamav/libmspack.c only exist in clamav  0.99.3 [1], in 0.99.2 we only have libclamav/mspack.c [2]. 


[1]
https://github.com/vrtadmin/clamav-devel/tree/0.99.3/libclamav

[2]
https://github.com/vrtadmin/clamav-devel/blob/0.99.2/libclamav/mspack.c

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