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Bug 1396980 - (CVE-2016-9398) CVE-2016-9398 jasper: reachable assertion in jpc_floorlog2()
CVE-2016-9398 jasper: reachable assertion in jpc_floorlog2()
Status: NEW
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
low Severity low
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Assigned To: Red Hat Product Security
impact=low,public=20161116,reported=2...
: Security
Depends On: 1434464 1396987 1396988 1396989
Blocks: 1449402
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Reported: 2016-11-21 05:21 EST by Adam Mariš
Modified: 2018-07-18 11:06 EDT (History)
25 users (show)

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Description Adam Mariš 2016-11-21 05:21:40 EST 
An assertion failure was possible to trigger in jpc_floorlog2.

CVE assignment:

http://seclists.org/oss-sec/2016/q4/441
Comment 1 Adam Mariš 2016-11-21 05:37:31 EST 
Created mingw-jasper tracking bugs for this issue:

Affects: fedora-all [bug 1396987]
Affects: epel-7 [bug 1396989]
Comment 2 Adam Mariš 2016-11-21 05:37:52 EST 
Created jasper tracking bugs for this issue:

Affects: fedora-all [bug 1396986]
Affects: epel-5 [bug 1396988]
Comment 3 Tomas Hoger 2016-11-29 16:13:25 EST 
Original reporter's advisory:

https://blogs.gentoo.org/ago/2016/11/16/jasper-multiple-assertion-failure/

Upstream bug report:

https://github.com/mdadams/jasper/issues/71

Test case:

https://github.com/asarubbo/poc/blob/master/00023-jasper-assert-jpc_floorlog2

This issue has not been fixed upstream yet - the issue is reproducible with the current git master, hence still affecting upstream version 2.0.1.
Comment 5 Tomas Hoger 2016-11-30 03:50:55 EST 
Quoting relevant part of the original reporter's advisory for posterity:

Affected version:
1.900.17

Output/failure:
imginfo: /tmp/portage/media-libs/jasper-1.900.17/work/jasper-1.900.17/src/libjasper/jpc/jpc_math.c:94: int jpc_floorlog2(int): Assertion `x > 0′ failed.

Commit fix:
N/A

Fixed version:
N/A

Testcase:
https://github.com/asarubbo/poc/blob/master/00023-jasper-assert-jpc_floorlog2

CVE:
CVE-2016-9398
Comment 6 Tomas Hoger 2017-03-01 09:21:50 EST 
Remains unfixed in 2.0.11.
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