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JLSEC-2025-29 Critical 9.1

When sending data to an MQTT server, libcurl <= 7.73.0 and 7.78.0 could in some circumstances...

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JLSEC Published
Modified
Severity
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Affected Packages
LibCURL_jll >= 7.70.0+0, < 7.81.0+0
Upstream
CVE-2021-22945

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.

References