REDHAT-BUG-1556708: Null Pointer Dereference
First published: Thu Mar 15 2018(Updated: )
LibTIFF through version 4.0.9 is vulnerable to a NULL pointer dereference in tif_print.c:TIFFPrintDirectory(). An attacker exploit this to cause a denial of service using the tiffinfo command with a crafted TIFF image. This is a different issue to <a href="https://access.redhat.com/security/cve/CVE-2017-18013">CVE-2017-18013</a>. Upstream Bug: <a href="http://bugzilla.maptools.org/show_bug.cgi?id=2778">http://bugzilla.maptools.org/show_bug.cgi?id=2778</a>
| Affected Software | Affected Version | How to fix |
|---|---|---|
| libtiff | <=4.0.9 |
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Reference Links
- https://access.redhat.com/security/cve/CVE-2017-18013
- http://bugzilla.maptools.org/show_bug.cgi?id=2778
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1556709
- https://access.redhat.com/errata/RHSA-2019:2051
- https://access.redhat.com/errata/RHSA-2019:2053
- https://bugzilla.redhat.com/show_bug.cgi?id=1556708
Frequently Asked Questions
What is the severity of REDHAT-BUG-1556708?
REDHAT-BUG-1556708 is classified as a denial of service vulnerability due to a NULL pointer dereference.
How do I fix REDHAT-BUG-1556708?
To fix REDHAT-BUG-1556708, update LibTIFF to version 4.0.10 or later.
What systems are affected by REDHAT-BUG-1556708?
REDHAT-BUG-1556708 affects LibTIFF versions up to and including 4.0.9.
What can an attacker achieve by exploiting REDHAT-BUG-1556708?
An attacker can exploit REDHAT-BUG-1556708 to cause a denial of service by using a crafted TIFF image.
Which function in LibTIFF is vulnerable in REDHAT-BUG-1556708?
The vulnerable function in LibTIFF related to REDHAT-BUG-1556708 is TIFFPrintDirectory in tif_print.c.
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