Bug 1494196 – CVE-2017-7544 libexif: Out-of-bounds heap read in exif_data_save_data_entry function

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Bug 1494196 - (CVE-2017-7544) CVE-2017-7544 libexif: Out-of-bounds heap read in exif_data_save_data_entry function

Summary:	CVE-2017-7544 libexif: Out-of-bounds heap read in exif_data_save_data_entry f...

Status:	NEW

Aliases:	CVE-2017-7544

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

Priority	low Severity low
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Assigned To:	Red Hat Product Security
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Whiteboard:	impact=low,public=20170704,reported=2...
Keywords:	Security

Depends On:	1494197
Blocks:
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Reported:	2017-09-21 12:13 EDT by Adam Mariš
Modified:	2017-11-07 17:09 EST (History)
CC List:	9 users (show)

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Description Adam Mariš 2017-09-21 12:13:13 EDT

An out-of-bounds heap read vulnerability was found in exif_data_save_data_entry function in libexif/exif-data.c caused by improper length computation of the allocated data of an ExifMnote entry which can cause denial-of-service or possibly information disclosure.

Upstream bug:

https://sourceforge.net/p/libexif/bugs/130/

Comment 1 Adam Mariš 2017-09-21 12:13:15 EDT

Acknowledgments:

Name: Lili Xu (Chinese Acadamy of Sciences), Bingchang Liu (Chinese Acadamy of Sciences)

Comment 2 Adam Mariš 2017-09-21 12:13:47 EDT

Created libexif tracking bugs for this issue:

Affects: fedora-all [bug 1494197]

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