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CVE-2018-16840

Published: 31 October 2018

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.

Notes

AuthorNote
mdeslaur
introduced by https://github.com/curl/curl/commit/b46cfbc068
in curl 7.59
Priority

Medium

CVSS 3 base score: 9.8

Status

Package Release Status
curl
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(7.58.0-2ubuntu3.3)
cosmic
Released (7.61.0-1ubuntu2.2)
precise Not vulnerable

trusty Not vulnerable

upstream Pending
(7.62.0)
xenial Not vulnerable