CVE-2013-6420

HIGH

Description

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.

References

http://forums.interworx.com/threads/8000-InterWorx-Version-5-0-14-Released-on-Beta-Channel!

http://git.php.net/?p=php-src.git;a=commit;h=c1224573c773b6845e83505f717fbf820fc18415

http://lists.opensuse.org/opensuse-updates/2013-12/msg00125.html

http://lists.opensuse.org/opensuse-updates/2013-12/msg00126.html

http://rhn.redhat.com/errata/RHSA-2013-1813.html

http://rhn.redhat.com/errata/RHSA-2013-1815.html

http://rhn.redhat.com/errata/RHSA-2013-1824.html

http://rhn.redhat.com/errata/RHSA-2013-1825.html

http://rhn.redhat.com/errata/RHSA-2013-1826.html

http://secunia.com/advisories/59652

http://support.apple.com/kb/HT6150

http://www.debian.org/security/2013/dsa-2816

http://www.php.net/ChangeLog-5.php

http://www.securityfocus.com/bid/64225

http://www.securitytracker.com/id/1029472

http://www.ubuntu.com/usn/USN-2055-1

https://bugzilla.redhat.com/show_bug.cgi?id=1036830

https://h20564.www2.hp.com/hpsc/doc/public/display?docId=emr_na-c04463322

https://www.sektioneins.de/advisories/advisory-012013-php-openssl_x509_parse-memory-corruption-vulnerability.html

Details

Source: MITRE

Published: 2013-12-17

Updated: 2018-10-30

Type: CWE-119

Risk Information

CVSS v2.0

Base Score: 7.5

Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P

Impact Score: 6.4

Exploitability Score: 10

Severity: HIGH