Input validation error in libcurl - CVE-2014-8151
Published: January 15, 2015 / Updated: August 9, 2020
Vulnerability identifier: #VU40952
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2014-8151
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote non-authenticated attacker to read and manipulate data.
The darwinssl_connect_step1 function in lib/vtls/curl_darwinssl.c in libcurl 7.31.0 through 7.39.0, when using the DarwinSSL (aka SecureTransport) back-end for TLS, does not check if a cached TLS session validated the certificate when reusing the session, which allows man-in-the-middle attackers to spoof servers via a crafted certificate. <a href="http://cwe.mitre.org/data/definitions/295.html">CWE-295: Improper Certificate Validation</a>
Affected software
libcurl
How to mitigate CVE-2014-8151
Install update from vendor's website.