Improper input validation in Polarssl

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.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.019 (77.4th percentile) — read the EPSS interpretation.

Affected products

  • Polarssl — versions 1.1.0, 1.1.1, 1.1.2
  • N/a — versions n/a

Weakness classification (CWE)

References