REDHAT-BUG-1644448: Null Pointer Dereference
First published: Tue Oct 30 2018(Updated: )
An issue was discovered in LibTIFF 4.0.9. There is a NULL pointer dereference in the function LZWDecode in the file tif_lzw.c. References: <a href="http://bugzilla.maptools.org/show_bug.cgi?id=2819">http://bugzilla.maptools.org/show_bug.cgi?id=2819</a> Upstream Patch: <a href="https://gitlab.com/libtiff/libtiff/commit/99b10edde9a0fc28cc0e7b7757aa18ac4c8c225f">https://gitlab.com/libtiff/libtiff/commit/99b10edde9a0fc28cc0e7b7757aa18ac4c8c225f</a>
| Affected Software | Affected Version | How to fix |
|---|---|---|
| libtiff |
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Reference Links
- http://bugzilla.maptools.org/show_bug.cgi?id=2819
- https://gitlab.com/libtiff/libtiff/commit/99b10edde9a0fc28cc0e7b7757aa18ac4c8c225f
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1644449
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1644451
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1644450
- https://access.redhat.com/support/policy/updates/errata/
- https://access.redhat.com/errata/RHSA-2019:2053
- https://access.redhat.com/security/cve/cve-2018-18661
- https://bugzilla.redhat.com/show_bug.cgi?id=1644448
Frequently Asked Questions
What is the severity of REDHAT-BUG-1644448?
The severity of REDHAT-BUG-1644448 is classified as high due to the potential for NULL pointer dereference leading to application crashes.
How do I fix REDHAT-BUG-1644448?
To fix REDHAT-BUG-1644448, you should apply the latest patch provided by the LibTIFF maintainers.
What software is affected by REDHAT-BUG-1644448?
The affected software for REDHAT-BUG-1644448 includes LibTIFF version 4.0.9.
What type of vulnerability is REDHAT-BUG-1644448?
REDHAT-BUG-1644448 is a NULL pointer dereference vulnerability.
In which function is the issue in REDHAT-BUG-1644448 found?
The issue in REDHAT-BUG-1644448 is found in the function LZWDecode within the tif_lzw.c file.
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