REDHAT-BUG-2216080: Null Pointer Dereference
First published: Tue Jun 20 2023(Updated: )
A NULL pointer dereference in TIFFClose() is caused by a failure to open an output file (non-existent path or a path that requires permissions like /dev/null) while specifying zones. <a href="https://research.jfrog.com/vulnerabilities/libtiff-nullderef-dos-xray-522144/">https://research.jfrog.com/vulnerabilities/libtiff-nullderef-dos-xray-522144/</a> <a href="https://gitlab.com/libtiff/libtiff/-/issues/515">https://gitlab.com/libtiff/libtiff/-/issues/515</a>
| Affected Software | Affected Version | How to fix |
|---|---|---|
| libtiff |
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Reference Links
- https://research.jfrog.com/vulnerabilities/libtiff-nullderef-dos-xray-522144/
- https://gitlab.com/libtiff/libtiff/-/issues/515
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2216082
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2216081
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2216083
- https://access.redhat.com/errata/RHSA-2023:6575
- https://bugzilla.redhat.com/show_bug.cgi?id=2216080
Frequently Asked Questions
What is the severity of REDHAT-BUG-2216080?
The severity of REDHAT-BUG-2216080 is classified as a critical NULL pointer dereference vulnerability.
How do I fix REDHAT-BUG-2216080?
To fix REDHAT-BUG-2216080, ensure that the output path is valid and has the appropriate permissions before using TIFFClose().
What are the affected versions in REDHAT-BUG-2216080?
REDHAT-BUG-2216080 affects all versions of the LibTIFF library.
What could be the impact of exploiting REDHAT-BUG-2216080?
Exploiting REDHAT-BUG-2216080 may lead to a denial of service due to application crashes.
Is there a known workaround for REDHAT-BUG-2216080?
A known workaround for REDHAT-BUG-2216080 is to avoid specifying zones or ensure that the output file is accessible.
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