5.9 Medium

CVE-2022-43552 A use after free vulnerability exists in curl <7.87.0

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.

Affected products and versions

Product	Affected versions	Fixed in
https://github.com/curl/curl	Versions not published
SIMATIC S7-1500 CPU 1518-4 PN/DP MFP 3.1	3.1.0 → < 3.1.5	3.1.5
SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP 3.1	3.1.0 → < 3.1.5	3.1.5
SIPLUS S7-1500 CPU 1518-4 PN/DP MFP 3.1	3.1.0 → < 3.1.5	3.1.5

References

hackerone.com hackerone.com
security.netapp.com security.netapp.com
support.apple.com support.apple.com
20230327 APPLE-SA-2023-03-27-3 macOS Ventura 13.3 seclists.org
GLSA-202310-12 security.gentoo.org

Timeline

Published February 9, 2023
Last modified October 14, 2026

The 51 CVEs of https://github.com/curl/curl →

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Track this CVE

CVE-2022-43552 A use after free vulnerability exists in curl <7.87.0

Description

Affected products and versions

References

Timeline

Other CVEs of https://github.com/curl/curl