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CVE-2013-4248 The openssl_x509_parse function in openssl.c in the OpenSSL module in PHP before 5.4.18 and 5.5.x before 5.5.2 does not properly handle a '\0' character in a domain name in the Subject Alternative Name field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority, a related issue to…
Severity Medium 4.3
Published 18 Aug 2013
Last changed 16 Jun 2026
Added to UpHeron 14 Oct 2026
Sources NVD Affected software Software Affected versions PHPServers and applications · cpe:a:php:php Version 5.5.1 Version 5.5.0 Version 5.4.16-rc1 Version 5.4.15-rc1 All 90 release lines Every version up to 5.4.17 Version 5.0.0-beta1 Version 5.0.0-beta2 Version 5.0.0-beta3 Version 5.0.0-beta4 Version 5.0.0-rc1 Version 5.0.0-rc2 Version 5.0.0-rc3 Version 5.0.0 Version 5.0.1 Version 5.0.2 Version 5.0.3 Version 5.0.4 Version 5.0.5 Version 5.1.0 Version 5.1.1 Version 5.1.2 Version 5.1.3 Version 5.1.4 Version 5.1.5 Version 5.1.6 Version 5.2.0 Version 5.2.1 Version 5.2.2 Version 5.2.3 Version 5.2.4 Version 5.2.5 Version 5.2.6 Version 5.2.7 Version 5.2.8 Version 5.2.9 Version 5.2.10 Version 5.2.11 Version 5.2.12 Version 5.2.13 Version 5.2.14 Version 5.2.15 Version 5.2.16 Version 5.2.17 Version 5.3.0 Version 5.3.1 Version 5.3.2 Version 5.3.3 Version 5.3.4 Version 5.3.5 Version 5.3.6 Version 5.3.7 Version 5.3.8 Version 5.3.9 Version 5.3.10 Version 5.3.11 Version 5.3.12 Version 5.3.13 Version 5.3.14 Version 5.3.15 Version 5.3.16 Version 5.3.17 Version 5.3.18 Version 5.3.19 Version 5.3.20 Version 5.3.21 Version 5.3.22 Version 5.3.23 Version 5.3.24 Version 5.3.25 Version 5.3.26 Version 5.3.27 Version 5.4.0 Version 5.4.1 Version 5.4.2 Version 5.4.3 Version 5.4.4 Version 5.4.5 Version 5.4.6 Version 5.4.7 Version 5.4.8 Version 5.4.9 Version 5.4.10 Version 5.4.11 Version 5.4.12-rc1 Version 5.4.12-rc2 Version 5.4.12 Version 5.4.13-rc1 Version 5.4.13 Version 5.4.14-rc1 Version 5.4.14 Version 5.4.15-rc1 Version 5.4.16-rc1 Version 5.5.0 Version 5.5.1
References NVD https://nvd.nist.gov/vuln/detail/CVE-2013-4248 CVE.org https://www.cve.org/CVERecord?id=CVE-2013-4248