Xavier Roche discovered an infinite loop in the gdPngReadData() function when processing a truncated PNG file (CVE-2007-2756). An integer overflow has been discovered in the gdImageCreateTrueColor() function (CVE-2007-3472). An error has been discovered in the function gdImageCreateXbm() function (CVE-2007-3473). Unspecified vulnerabilities have been discovered in the GIF reader (CVE-2007-3474). An error has been discovered when processing a GIF image that has no global color map (CVE-2007-3475). An array index error has been discovered in the file gd_gif_in.c when processing images with an invalid color index (CVE-2007-3476). An error has been discovered in the imagearc() and imagefilledarc() functions when processing overly large angle values (CVE-2007-3477). A race condition has been discovered in the gdImageStringFTEx() function (CVE-2007-3478).
A remote attacker could exploit one of these vulnerabilities to cause a Denial of Service or possibly execute arbitrary code with the privileges of the user running GD.
There is no known workaround at this time.
All GD users should upgrade to the latest version:
Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to firstname.lastname@example.org or alternatively, you may file a bug at http://bugs.gentoo.org.
Copyright 2007 Gentoo Foundation, Inc; referenced text belongs to its owner(s).
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