vulnerability
Alpine Linux: CVE-2021-22945: Double Free
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 6 | (AV:N/AC:M/Au:N/C:P/I:N/A:P) | Sep 23, 2021 | Aug 22, 2024 | Dec 5, 2025 |
Severity
6
CVSS
(AV:N/AC:M/Au:N/C:P/I:N/A:P)
Published
Sep 23, 2021
Added
Aug 22, 2024
Modified
Dec 5, 2025
Description
When sending data to an MQTT server, libcurl <= 7.73.0 and 7.78.0 could in some circumstances erroneously keep a pointer to an already freed memory area and both use that again in a subsequent call to send data and also free it *again*.
Solution
alpine-linux-upgrade-curl
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