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›vulnerability›CVE-2022-43552
Name
CVE-2022-43552
Source
NVD ( link)Debian ( link)
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.
CWEs
CWE-416 CWE-416 CWE-416
Published Date
Updated Date
Workaround
-
Advisories
http://seclists.org/fulldisclosure/2023/Mar/17Mailing List
https://hackerone.com/reports/1764858Exploit
https://security.gentoo.org/glsa/202310-12Third Party Advisory
https://security.netapp.com/advisory/ntap-20230214-0002/Vendor Advisory
https://support.apple.com/kb/HT213670Third Party Advisory
http://seclists.org/fulldisclosure/2023/Mar/17Mailing List
https://hackerone.com/reports/1764858Exploit
https://security.gentoo.org/glsa/202310-12Third Party Advisory
https://security.netapp.com/advisory/ntap-20230214-0002/Vendor Advisory
https://support.apple.com/kb/HT213670Third Party Advisory

Analysis#

Affected Component
Analysis
curl
Patched

Vulnerability Ratings#

5.9
CVSSv31
5.9
CVSSv31
NaN
other

Others affected components#

Name
Project
Project Version
Version
Status
libcurl
buildroot
2025.02.x
8.20.0
Not Affected
libcurl
buildroot
master
8.21.0
Not Affected
curl
openwrt
master
8.19.0-r2
Not Affected
libcurl-gnutls
openwrt
master
8.20.0-r1
Not Affected
curl
openwrt
openwrt-25.12
8.19.0-r2
Not Affected
libcurl-gnutls
openwrt
openwrt-25.12
8.14.1-r1
Not Affected
curl
yocto
master
8.20.0
Not Affected
curl
yocto
scarthgap
8.7.1
Not Affected

Resolved with patches#

curl (yocto:kirkstone)

#
Title
Author
Resolve
1
smb/telnet: do not free the protocol struct in *_done()
Daniel Stenberg <daniel@haxx.se>
CVE-2022-43552