CVE-2024-2466

TLS certificate check bypass with mbedTLS

Description

libcurl did not check the server certificate of TLS connections done to a host specified as an IP address, when built to use mbedTLS. libcurl would wrongly avoid using the set hostname function when the specified hostname was given as an IP address, therefore completely skipping the certificate check. This affects all uses of TLS protocols (HTTPS, FTPS, IMAPS, POPS3, SMTPS, etc).

Category

6.5
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.15%
Affected: curl curl
Published at:
Updated at:

References

Link Tags
https://curl.se/docs/CVE-2024-2466.json
https://curl.se/docs/CVE-2024-2466.html
https://hackerone.com/reports/2416725
http://www.openwall.com/lists/oss-security/2024/03/27/4
https://security.netapp.com/advisory/ntap-20240503-0010/
https://support.apple.com/kb/HT214119
https://support.apple.com/kb/HT214118
https://support.apple.com/kb/HT214120
http://seclists.org/fulldisclosure/2024/Jul/20
http://seclists.org/fulldisclosure/2024/Jul/18
http://seclists.org/fulldisclosure/2024/Jul/19
https://www.vicarius.io/vsociety/posts/tls-certificate-check-bypass-curl-with-mbedtls-cve-2024-2466-2468

Frequently Asked Questions

What is the severity of CVE-2024-2466?
CVE-2024-2466 has been scored as a medium severity vulnerability.
How to fix CVE-2024-2466?
To fix CVE-2024-2466, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2024-2466 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2024-2466 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-2466?
CVE-2024-2466 affects curl curl.
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