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CURL-CVE-2015-3144
No affected components available
There is a private function in libcurl called fix_hostname() that removes a
trailing dot from the hostname if there is one. The function is called after
the hostname has been extracted from the URL libcurl has been told to act on.
If a URL is given with a zero-length hostname, like in "http://:80" or ":80",
fix_hostname() indexes the hostname pointer with a -1 offset (as it blindly
assumes a non-zero length) and both read and assign that address.
At best, this gets unnoticed but can also lead to a crash or worse. We have not researched further what kind of malicious actions that potentially this could be used for.
Measures severity based on intrinsic characteristics of the vulnerability, independent of environment.
No exploitation activity has been observed at this time. Continue routine monitoring.
Probability that this vulnerability will be exploited in the wild within the next 30 days.
We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.
- CVE-2015-3144Alias
- EUVD-2015-3225Alias
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