|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.|
|Source||CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)|
Vulnerable and fixed packages
The table below lists information on source packages.
|buster, buster (security)||7.64.0-4+deb10u2||fixed|
|bookworm, sid, bullseye||7.74.0-1.3||fixed|
The information below is based on the following data on fixed versions.
|Package||Type||Release||Fixed Version||Urgency||Origin||Debian Bugs|
[stretch] - curl <not-affected> (Use-after-free issue introduced later)
[jessie] - curl <not-affected> (Use-after-free issue introduced later)
Fixed by: https://github.com/curl/curl/commit/81d135d67155c5295b1033679c606165d4e28f3f
Introduced by: https://github.com/curl/curl/commit/b46cfbc068ebe90f18e9777b9e877e4934c1b5e3