CVE-2013-4248

UnknownEPSS 3.59%

Last modified

CVE-2013-4248 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 3.59% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability
3.59%

87.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersionsUpdate
CanonicalUbuntu Linux10.04
CanonicalUbuntu Linux12.04
CanonicalUbuntu Linux12.10
CanonicalUbuntu Linux13.04
PhpPhp<= 5.4.17
PhpPhp5.0.0
PhpPhp5.0.1
PhpPhp5.0.2
PhpPhp5.0.3
PhpPhp5.0.4
PhpPhp5.0.5
PhpPhp5.1.0
PhpPhp5.1.1
PhpPhp5.1.2
PhpPhp5.1.3
PhpPhp5.1.4
PhpPhp5.1.5
PhpPhp5.1.6
PhpPhp5.2.0
PhpPhp5.2.1
PhpPhp5.2.2
PhpPhp5.2.3
PhpPhp5.2.4
PhpPhp5.2.5
PhpPhp5.2.6
PhpPhp5.2.7
PhpPhp5.2.8
PhpPhp5.2.9
PhpPhp5.2.10
PhpPhp5.2.11
PhpPhp5.2.12
PhpPhp5.2.13
PhpPhp5.2.14
PhpPhp5.2.15
PhpPhp5.2.16
PhpPhp5.2.17
PhpPhp5.3.0
PhpPhp5.3.1
PhpPhp5.3.2
PhpPhp5.3.3
PhpPhp5.3.4
PhpPhp5.3.5
PhpPhp5.3.6
PhpPhp5.3.7
PhpPhp5.3.8
PhpPhp5.3.9
PhpPhp5.3.10
PhpPhp5.3.11
PhpPhp5.3.12
PhpPhp5.3.13

Showing 50 of 84 affected configurations. See NVD for the full list.

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is 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 CVE-2009-2408.
How severe is CVE-2013-4248?
Severity scoring for CVE-2013-4248 is pending analysis. The EPSS model estimates a 3.59% probability of exploitation in the next 30 days.
How do I fix CVE-2013-4248?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2013-4248?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST