Detections
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CVE-2018-16840
critical
Description
A heap use-after-free flaw was found in curl versions from 7.59.0 through 7.61.1 in the code related to closing an easy handle. When closing and cleaning up an 'easy' handle in the `Curl_close()` function, the library code first frees a struct (without nulling the pointer) and might then subsequently erroneously write to a struct field within that already freed struct.
References
https://usn.ubuntu.com/3805-1/
https://security.gentoo.org/glsa/201903-03
https://github.com/curl/curl/commit/81d135d67155c5295b1033679c606165d4e28f3f
https://curl.haxx.se/docs/CVE-2018-16840.html