vulnerability

Arch Linux: Arbitrary code execution (CVE-2018-16840)

Severity
7
CVSS
(AV:N/AC:L/Au:N/C:P/I:P/A:P)
Published
Oct 31, 2018
Added
Jul 11, 2025
Modified
Nov 27, 2025

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.

Solution

arch-linux-upgrade-latest

References

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