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CVE-2022-43552

Public on 2022-12-23
Modified on 2024-02-01
Description

A use after free vulnerability exists in curl <7.87.0. Curl can be asked to *tunnel* virtually all protocols it supports through an HTTP proxy. HTTP proxies can (and often do) deny such tunnel operations. When getting denied to tunnel the specific protocols SMB or TELNET, curl would use a heap-allocated struct after it had been freed, in its transfer shutdown code path.

Severity
Low
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CVSS v3 Base Score
5.9
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Affected Packages

Platform Package Release Date Advisory
Amazon Linux 1 curl 2023-04-13 19:01 ALAS-2023-1729
Amazon Linux 2 - Core curl 2023-01-30 16:02 ALAS2-2023-1924
Amazon Linux 2023 curl 2023-02-17 20:47 ALAS2023-2023-083

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD CVSSv3 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H