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MEDIUM · 4.3

CVE-2013-4623

The x509parse_crt function in x509.h in PolarSSL 1.1.x before 1.1.7 and 1.2.x before 1.2.8 does not properly parse certificate messages during the SSL/TLS handshake, which allows remote attackers to c...

Vulnerability Description

The x509parse_crt function in x509.h in PolarSSL 1.1.x before 1.1.7 and 1.2.x before 1.2.8 does not properly parse certificate messages during the SSL/TLS handshake, which allows remote attackers to cause a denial of service (infinite loop and CPU consumption) via a certificate message that contains a PEM encoded certificate.

CVSS Score

4.3

MEDIUM

AV:N/AC:M/Au:N/C:N/I:N/A:P
Confidentiality
NONE
Integrity
NONE
Availability
PARTIAL

Affected Products

VendorProductVersions
PolarsslPolarssl1.1.0

Related Weaknesses (CWE)

CWE-20

References

FAQ

What is CVE-2013-4623?

CVE-2013-4623 is a vulnerability with a CVSS score of 4.3 (MEDIUM). The x509parse_crt function in x509.h in PolarSSL 1.1.x before 1.1.7 and 1.2.x before 1.2.8 does not properly parse certificate messages during the SSL/TLS handshake, which allows remote attackers to c...

How severe is CVE-2013-4623?

CVE-2013-4623 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2013-4623?

Check the references section above for vendor advisories and patch information. Affected products include: Polarssl Polarssl.