CVE-2013-6420

The asn1_time_to_time_t function in ext/openssl/openssl.c in PHP before 5.3.28, 5.4.x before 5.4.23, and 5.5.x before 5.5.7 does not properly parse (1) notBefore and (2) notAfter timestamps in X.509 certificates, which allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted certificate that is not properly handled by the openssl_x509_parse function.

CVSS v2.0

7.5 HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P

EPSS

35.63% chance of exploitation in the next 30 days, 98th percentile

Published

2013-12-17

Updated

2024-08-06

ExploitDB entries (1)

• https://www.exploit-db.com/exploits/30395

References

• CVE Record
• NVD entry

Related

• CVE-2013-6414
• CVE-2013-6480
• CVE-2013-6395
• CVE-2013-6490
• CVE-2013-6375
• CVE-2013-6492