4.3 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:M/Au:N/C:P/I:N/A:N
0.003 Low
EPSS
Percentile
69.9%
curl and libcurl 7.27.0 through 7.35.0, when using the SecureTransport/Darwinssl backend, as used in in Apple OS X 10.9.x before 10.9.2, does not verify that the server hostname matches a domain name in the subject’s Common Name (CN) or subjectAltName field of the X.509 certificate when accessing a URL that uses a numerical IP address, which allows man-in-the-middle attackers to spoof servers via an arbitrary valid certificate.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Debian | 12 | all | curl | < 7.88.1-10+deb12u5 | curl_7.88.1-10+deb12u5_all.deb |
Debian | 11 | all | curl | < 7.74.0-1.3+deb11u11 | curl_7.74.0-1.3+deb11u11_all.deb |
Debian | 10 | all | curl | < 7.64.0-4+deb10u2 | curl_7.64.0-4+deb10u2_all.deb |
Debian | 999 | all | curl | < 8.7.1-5 | curl_8.7.1-5_all.deb |
Debian | 13 | all | curl | < 8.7.1-3 | curl_8.7.1-3_all.deb |