ext/curl/interface.c in PHP 7.x before 7.0.10 does not work around a libcurl integer overflow, which allows remote attackers to cause a denial of service (allocation error and heap-based buffer overflow) or possibly have unspecified other impact via a long string that is mishandled in a curl_escape call.
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
| Link | Tags |
|---|---|
| http://www.php.net/ChangeLog-7.php | release notes |
| https://security.gentoo.org/glsa/201611-22 | vendor advisory |
| http://www.securitytracker.com/id/1036680 | vdb entry |
| https://bugs.php.net/bug.php?id=72674 | release notes |
| https://github.com/php/php-src/commit/72dbb7f416160f490c4e9987040989a10ad431c7?w=1 | issue tracking patch |
| http://www.securityfocus.com/bid/92766 | vdb entry |
| http://openwall.com/lists/oss-security/2016/09/02/9 | mailing list |