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

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

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

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

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

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

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

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

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

http://secunia.com/advisories/59652

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

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

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

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

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

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

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

http://git.php.net/?p=php-src.git%3Ba=commit%3Bh=c1224573c773b6845e83505f717fbf820fc18415

http://forums.interworx.com/threads/8000-InterWorx-Version-5-0-14-Released-on-Beta-Channel%21

Details

Source: Mitre, NVD

Published: 2013-12-17

Updated: 2025-04-11

Risk Information

CVSS v2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Severity: High

CVSS v3

Base Score: 7.3

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Severity: High

EPSS

EPSS: 0.48115