CVE Tools
Sign in

CVE-2022-43552

Published: Feb 9, 2023Updated: Nov 21, 2024 Sources: CVE List NVD BDU csafCWE-416
NVD MITRE
5.9CVSSMEDIUM
EPSS Score
2.5%
Top 17.3%
CISA KEV
Not in KEV
Exploits
1 Known
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:HPR:NUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-416

Affected Products

https://github.com/curl/curln/a
curlhaxxOSS Libraries
macosapple
On-premOS
Operating Systems / unix-bsd
universal forwardersplunkSecurity Products
Debian GNU/LinuxСообщество свободного программного обеспечения
On-premOS
Operating Systems / linux-distro
haxxoss-projectSEOSS Librariesaka haxx.se
applecommercialUSMobile Appsaka apple inc., apple computer
splunkcommercialUSSecurity Productsaka splunk enterprise, splunk cloud platform
сообщество свободного программного обеспеченияoss-projectOperating Systemsaka сообщество свободного программного обеспечения, fsf
and 4 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

1 exploit source identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available

MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://hackerone.com/reports/1764858
hackerone.com
https://security.netapp.com/advisory/ntap-20230214-0002/
security.netapp.com
https://support.apple.com/kb/HT213670
support.apple.com
and 23 more references View all →

Timeline

Published
Feb 9, 2023
Last Updated
Nov 21, 2024

Unlock Complete Vulnerability Intelligence

Get the full picture for CVE-2022-43552 and every CVE in our database. Create a free account — no credit card required.

Create Free Account
Plain-language analysis
Impact assessment and exploitation scenario in plain English
Attack graph visualization
Interactive attack path and kill chain mapping
Exploit details & PoC links
ExploitDB, Metasploit, GitHub PoCs with direct links
Nuclei scanner templates
Ready-to-use vulnerability scanner templates
Full remediation guide
Patch instructions, workarounds, and compliance impact
Interactive AI chat
Ask questions about this vulnerability in natural language
Related vulnerabilities
Semantically similar CVEs and attack patterns
REST API & MCP access
Integrate vulnerability data into your workflows