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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
The Curl Project curl
from 7.59.0 to 7.61.1affected
References
- https://security.gentoo.org/glsa/201903-03 ↗
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16840 ↗
- https://github.com/curl/curl/commit/81d135d67155c5295b1033679c606165d4e28f3f ↗
- http://www.securitytracker.com/id/1042013 ↗
- https://curl.haxx.se/docs/CVE-2018-16840.html ↗
- https://usn.ubuntu.com/3805-1/ ↗