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CURL-CVE-2016-9586
No affected components available
libcurl's implementation of the printf() functions triggers a buffer overflow when doing a large floating point output. The bug occurs when the conversion outputs more than 255 bytes.
The flaw happens because the floating point conversion is using system functions without the correct boundary checks.
The functions have been documented as deprecated for a long time and users are discouraged from using them in "new programs" as they are planned to get removed at a future point. Since the functions are present and there is nothing preventing users from using them, we expect there to be a certain amount of existing users in the wild.
If there are any application that accepts a format string from the outside without necessary input filtering, it could allow remote attacks.
This flaw does not exist in the command line tool.
Measures severity based on intrinsic characteristics of the vulnerability, independent of environment.
No exploitation activity has been observed at this time. Continue routine monitoring.
The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.
We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.
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