CVE-2013-4248

Description

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 CVE-2009-2408.

Category

4.3
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 7.29% Top 10%
Vendor Advisory debian.org Vendor Advisory opensuse.org Vendor Advisory marc.info Vendor Advisory ubuntu.com Vendor Advisory redhat.com Vendor Advisory opensuse.org Vendor Advisory redhat.com Vendor Advisory secunia.com Vendor Advisory secunia.com Vendor Advisory secunia.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://secunia.com/advisories/54657 third party advisory vendor advisory
http://www.debian.org/security/2013/dsa-2742 vendor advisory
http://lists.opensuse.org/opensuse-updates/2013-12/msg00126.html vendor advisory
http://www.securityfocus.com/bid/61776 vdb entry
http://git.php.net/?p=php-src.git%3Ba=commit%3Bh=2874696a5a8d46639d261571f915c493cd875897
http://secunia.com/advisories/59652 third party advisory
http://secunia.com/advisories/55078 third party advisory vendor advisory
http://marc.info/?l=bugtraq&m=141390017113542&w=2 vendor advisory
http://support.apple.com/kb/HT6150
http://www.ubuntu.com/usn/USN-1937-1 vendor advisory
http://www.php.net/ChangeLog-5.php
http://secunia.com/advisories/54478 third party advisory vendor advisory
http://rhn.redhat.com/errata/RHSA-2013-1307.html vendor advisory
http://www.securitytracker.com/id/1028924 vdb entry
http://lists.opensuse.org/opensuse-updates/2013-12/msg00125.html vendor advisory
http://rhn.redhat.com/errata/RHSA-2013-1615.html vendor advisory

Frequently Asked Questions

What is the severity of CVE-2013-4248?
CVE-2013-4248 has been scored as a medium severity vulnerability.
How to fix CVE-2013-4248?
To fix CVE-2013-4248, 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-2013-4248 being actively exploited in the wild?
It is possible that CVE-2013-4248 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~7% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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