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Bug 1396981 - (CVE-2016-9399) CVE-2016-9399 jasper: reachable assertion in calcstepsizes()
CVE-2016-9399 jasper: reachable assertion in calcstepsizes()
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 05:22 EST by Adam Mariš
Modified: 2018-07-18 11:07 EDT (History)
25 users (show)

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Description Adam Mariš 2016-11-21 05:22:28 EST 
An assertion failure was possible to trigger in calcstepsizes.

CVE assignment:

http://seclists.org/oss-sec/2016/q4/441
Comment 1 Adam Mariš 2016-11-21 05:38:10 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 05:38:31 EST 
Created jasper tracking bugs for this issue:

Affects: fedora-all [bug 1396986]
Affects: epel-5 [bug 1396988]
Comment 3 Tomas Hoger 2017-03-30 09:03:26 EDT 
Upstream bug report:

https://github.com/mdadams/jasper/issues/83

Original reporter's advisory:

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

Relevant information form the advisory:

Affected version: 1.900.22

Output/failure:
warning: trailing garbage in marker segment (9 bytes)
warning: trailing garbage in marker segment (28 bytes)
warning: trailing garbage in marker segment (40 bytes)
warning: ignoring unknown marker segment (0xffee)
type = 0xffee (UNKNOWN); len = 23;1f 32 ff ff ff 00 10 00 3d 4d 00 01 32 40 e4 e4 00 10 00 00 4f warning: trailing garbage in marker segment (12 bytes)
imginfo: /tmp/portage/media-libs/jasper-1.900.22/work/jasper-1.900.22/src/libjasper/jpc/jpc_dec.c:1650: void calcstepsizes(uint_fast16_t, int, uint_fast16_t *): Assertion `!((expn + (numrlvls – 1) – (numrlvls – 1 – ((bandno > 0) ? ((bandno + 2) / 3) : (0)))) & (~0x1f))’ failed.

Commit fix: N/A

Fixed version: N/A

Testcase:
https://github.com/asarubbo/poc/blob/master/00044-jasper-assert-calcstepsizes

CVE: CVE-2016-9399
Comment 4 Tomas Hoger 2017-03-30 09:06:25 EDT 
Upstream bug is still open and unfixed.  The issue is not reproducible in version 1.900.26 and later, as there's limit on maximum number of samples in one image used in those versions.  The issue is reproducible in the latest 2.0.12 when no samples limit is used (specified using --max-samples 0 option for jasper command line tools).
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