{"id":"UBUNTU-CVE-2013-4623","details":"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that contains a PEM encoded certificate.","modified":"2025-07-16T07:31:24.615706Z","published":"2013-09-30T22:55:00Z","withdrawn":"2025-07-18T16:42:56Z","upstream":["CVE-2013-4623"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2013-4623"},{"type":"REPORT","url":"https://polarssl.org/tech-updates/security-advisories/polarssl-security-advisory-2013-03"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2013-4623"}],"affected":[{"package":{"name":"polarssl","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/polarssl@1.2.8-2?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2.8-2"}]}],"ecosystem_specific":{"binaries":[{"binary_version":"1.2.8-2","binary_name":"libpolarssl-dev"},{"binary_version":"1.2.8-2","binary_name":"libpolarssl-runtime"},{"binary_version":"1.2.8-2","binary_name":"libpolarssl0"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2013/UBUNTU-CVE-2013-4623.json"}}],"schema_version":"1.7.3","severity":[{"type":"Ubuntu","score":"medium"}]}