Strix
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CVE-2013-4623

UnknownEPSS 1.89%

Last modified

CVE-2013-4623 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 1.89% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability
1.89%

76.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
PolarsslPolarssl1.1.0
PolarsslPolarssl1.1.1
PolarsslPolarssl1.1.2
PolarsslPolarssl1.1.3
PolarsslPolarssl1.1.4
PolarsslPolarssl1.1.5
PolarsslPolarssl1.1.6
PolarsslPolarssl1.2.0
PolarsslPolarssl1.2.1
PolarsslPolarssl1.2.2
PolarsslPolarssl1.2.3
PolarsslPolarssl1.2.4
PolarsslPolarssl1.2.5
PolarsslPolarssl1.2.6
PolarsslPolarssl1.2.7

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is 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 cause a denial of service (infinite loop and CPU consumption) via a certificate message that contains a PEM encoded certificate.
How severe is CVE-2013-4623?
Severity scoring for CVE-2013-4623 is pending analysis. The EPSS model estimates a 1.89% probability of exploitation in the next 30 days.
How do I fix CVE-2013-4623?
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-2013-4623?

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

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Source: NVD / NIST