Overview
libpng versions 1.6.1 through 1.6.7 fail to reject colormapped images with empty palettes, leading to a null-pointer dereference (crash) in png_do_expand_palette().
Description
The PNG Development Group has reported that "libpng versions 1.6.1 through 1.6.7 fail to reject colormapped images with empty palettes, leading to a null-pointer dereference (crash) in png_do_expand_palette()". |
Impact
An attacker may be able to exploit an application that uses libpng to execute arbitrary code or cause a denial-of-service. |
Solution
Apply an Update libpng 1.6.8 has addressed this vulnerability. |
Vendor Information
650142
CVSS Metrics
| Group | Score | Vector |
|---|---|---|
| Base | 3.3 | AV:L/AC:M/Au:N/C:P/I:P/A:N |
| Temporal | 2.4 | E:U/RL:OF/RC:C |
| Environmental | 2.5 | CDP:ND/TD:H/CR:ND/IR:ND/AR:ND |
References
Acknowledgements
Thanks to Glenn Randers-Pehrson for reporting this vulnerability.
This document was written by Jared Allar.
Other Information
| CVE IDs: | CVE-2013-6954 |
| Date Public: | 2013-12-19 |
| Date First Published: | 2014-01-09 |
| Date Last Updated: | 2014-01-09 18:01 UTC |
| Document Revision: | 5 |