Bug 1416060 (CVE-2017-5498) - CVE-2017-5498 jasper: Left shift of negative value in jas_fast32_asl() in jas_math.h
Summary: CVE-2017-5498 jasper: Left shift of negative value in jas_fast32_asl() in jas...
Alias: CVE-2017-5498
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
Depends On:
Blocks: 1449402
TreeView+ depends on / blocked
Reported: 2017-01-24 13:56 UTC by Andrej Nemec
Modified: 2019-09-29 14:05 UTC (History)
19 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
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Clone Of:
Last Closed: 2017-03-14 13:56:05 UTC

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Description Andrej Nemec 2017-01-24 13:56:57 UTC
A vulnerability was found in jasper. A crafted file could cause a left shift of negative value.



Comment 1 Andrej Nemec 2017-01-24 14:22:19 UTC
Created mingw-jasper tracking bugs for this issue:

Affects: epel-7 [bug 1406409]

Comment 2 Andrej Nemec 2017-01-24 14:22:34 UTC
Created jasper tracking bugs for this issue:

Affects: epel-5 [bug 1406406]

Comment 3 Tomas Hoger 2017-03-14 13:53:54 UTC
Upstream bug report:


This issue has not been resolved upstream yet (the current upstream version is 2.0.12).

Reporter's advisory:


Relevant information from the advisory:

With the undefined behavior sanitizer enabled, jasper crashes showing some left shift and some signed integer overflow.


Affected version / Tested on: 1.900.17
Fixed version: N/A
Commit fix: N/A

Relevant part of the stacktrace:

# imginfo -f $FILE
/tmp/portage/media-libs/jasper-1.900.17/work/jasper-1.900.17/src/libjasper/include/jasper/jas_math.h:156:11: runtime error: left shift of negative value -185

CVE: CVE-2017-5498

Comment 4 Tomas Hoger 2017-03-14 13:56:05 UTC
The important information form the advisory is that this crash only occurs when jasper is compiles with undefined behaviour sanitizer (ubsan) enabled.  That is a development tool aimed to identify possible code bugs related to undefined behaviour.  There is no crash as described by this CVE in builds not using ubsan.

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