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
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2017-6419
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1483911 1483912 1483999 1484000
Blocks:
TreeView+ depends on / blocked
 
Reported: 2017-08-22 09:09 UTC by Adam Mariš
Modified: 2019-09-29 14:19 UTC (History)
12 users (show)

Fixed In Version:
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Clone Of:
Environment:
Last Closed: 2018-09-26 05:46:36 UTC
Embargoed:

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Description Adam Mariš 2017-08-22 09:09:07 UTC 
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 09:10:29 UTC 
Created clamav tracking bugs for this issue:

Affects: epel-all [bug 1483912]
Affects: fedora-all [bug 1483911]
Comment 2 Adam Mariš 2017-08-22 12:46:12 UTC 
Created libmspack tracking bugs for this issue:

Affects: fedora-all [bug 1483999]
Comment 3 Adam Mariš 2017-08-22 12:48:14 UTC 
Created libmspack tracking bugs for this issue:

Affects: epel-all [bug 1484000]
Comment 4 Sergio Basto 2018-01-11 04:08:39 UTC 
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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