Unrated severityNVD Advisory· Published Nov 23, 2013· Updated Jun 16, 2026
CVE-2013-4545
CVE-2013-4545
Description
cURL and libcurl 7.18.0 through 7.32.0, when built with OpenSSL, disables the certificate CN and SAN name field verification (CURLOPT_SSL_VERIFYHOST) when the digital signature verification (CURLOPT_SSL_VERIFYPEER) is disabled, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
70cpe:2.3:a:haxx:curl:7.18.0:*:*:*:*:*:*:*+ 33 more
- cpe:2.3:a:haxx:curl:7.18.0:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:curl:7.18.1:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:curl:7.18.2:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:curl:7.19.0:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:curl:7.19.1:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:curl:7.19.2:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:curl:7.19.3:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:curl:7.19.4:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:curl:7.19.5:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:curl:7.19.6:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:curl:7.19.7:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:curl:7.20.0:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:curl:7.20.1:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:curl:7.21.0:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:curl:7.21.1:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:curl:7.21.2:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:curl:7.21.3:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:curl:7.21.4:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:curl:7.21.5:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:curl:7.21.6:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:curl:7.21.7:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:curl:7.22.0:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:curl:7.23.0:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:curl:7.23.1:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:curl:7.24.0:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:curl:7.25.0:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:curl:7.26.0:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:curl:7.27.0:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:curl:7.28.0:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:curl:7.28.1:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:curl:7.29.0:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:curl:7.30.0:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:curl:7.31.0:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:curl:7.32.0:*:*:*:*:*:*:*
cpe:2.3:a:haxx:libcurl:7.18.0:*:*:*:*:*:*:*+ 34 more
- cpe:2.3:a:haxx:libcurl:7.18.0:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:libcurl:7.18.1:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:libcurl:7.18.2:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:libcurl:7.19.0:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:libcurl:7.19.1:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:libcurl:7.19.2:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:libcurl:7.19.3:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:libcurl:7.19.4:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:libcurl:7.19.5:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:libcurl:7.19.6:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:libcurl:7.19.7:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:libcurl:7.20.0:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:libcurl:7.20.1:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:libcurl:7.21.0:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:libcurl:7.21.1:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:libcurl:7.21.2:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:libcurl:7.21.3:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:libcurl:7.21.4:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:libcurl:7.21.5:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:libcurl:7.21.6:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:libcurl:7.21.7:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:libcurl:7.22.0:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:libcurl:7.23.0:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:libcurl:7.23.1:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:libcurl:7.24.0:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:libcurl:7.25.0:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:libcurl:7.26.0:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:libcurl:7.27.0:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:libcurl:7.28.0:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:libcurl:7.28.1:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:libcurl:7.29.0:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:libcurl:7.30.0:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:libcurl:7.31.0:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:libcurl:7.32.0:*:*:*:*:*:*:*
- (no CPE)range: >=7.18.0, <=7.32.0
Patches
Vulnerability mechanics
References
9- curl.haxx.se/docs/adv_20131115.htmlnvdVendor Advisory
- lists.opensuse.org/opensuse-updates/2013-12/msg00047.htmlnvd
- lists.opensuse.org/opensuse-updates/2013-12/msg00053.htmlnvd
- www.debian.org/security/2013/dsa-2798nvd
- www.oracle.com/technetwork/topics/security/cpuapr2015-2365600.htmlnvd
- www.oracle.com/technetwork/topics/security/cpujan2015-1972971.htmlnvd
- www.oracle.com/technetwork/topics/security/cpujul2015-2367936.htmlnvd
- www.ubuntu.com/usn/USN-2048-1nvd
- h20564.www2.hp.com/hpsc/doc/public/displaynvd
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