CVE-2015-8867

Name: CVE-2015-8867
Creator: NVD / NIST
Published: 2016-05-22T01:59:06.71+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 4.35%

Last modified Jun 17, 2026

CVE-2015-8867 is a vulnerability of currently unknown severity. The openssl_random_pseudo_bytes function in ext/openssl/openssl.c in PHP before 5.4.44, 5.5.x before 5.5.28, and 5.6.x before 5.6.12 incorrectly relies on the deprecated RAND_pseudo_bytes function, which makes it easier for remote attackers to defeat cryptographic protection mechanisms via unspecified vectors.. EPSS estimates a 4.35% chance of exploitation in the next 30 days.

Description

The openssl_random_pseudo_bytes function in ext/openssl/openssl.c in PHP before 5.4.44, 5.5.x before 5.5.28, and 5.6.x before 5.6.12 incorrectly relies on the deprecated RAND_pseudo_bytes function, which makes it easier for remote attackers to defeat cryptographic protection mechanisms via unspecified vectors.

Metrics

EPSS Probability

4.35%

90.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-310

Affected Software

Vendor	Product	Versions
Php	Php	>= 5.4.0, < 5.4.44
Php	Php	>= 5.5.0, < 5.5.28
Php	Php	>= 5.6.0, < 5.6.12
Canonical	Ubuntu Linux	12.04
Canonical	Ubuntu Linux	14.04
Canonical	Ubuntu Linux	15.10

References

http://git.php.net/?p=php-src.git%3Ba=commit%3Bh=16023f3e3b9c06cf677c3c980e8d574e4c162827
http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00031.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00033.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00056.htmlMailing List, Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-2750.htmlThird Party Advisory
http://www.openwall.com/lists/oss-security/2016/04/24/1Mailing List, Third Party Advisory
http://www.php.net/ChangeLog-5.phpVendor Advisory
http://www.php.net/ChangeLog-7.phpVendor Advisory
http://www.ubuntu.com/usn/USN-2952-1Third Party Advisory
http://www.ubuntu.com/usn/USN-2952-2Third Party Advisory
https://bugs.launchpad.net/ubuntu/+source/php5/+bug/1534203Third Party Advisory
https://bugs.php.net/bug.php?id=70014Vendor Advisory
http://git.php.net/?p=php-src.git%3Ba=commit%3Bh=16023f3e3b9c06cf677c3c980e8d574e4c162827
http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00031.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00033.htmlMailing List, Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00056.htmlMailing List, Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-2750.htmlThird Party Advisory
http://www.openwall.com/lists/oss-security/2016/04/24/1Mailing List, Third Party Advisory
http://www.php.net/ChangeLog-5.phpVendor Advisory
http://www.php.net/ChangeLog-7.phpVendor Advisory
http://www.ubuntu.com/usn/USN-2952-1Third Party Advisory
http://www.ubuntu.com/usn/USN-2952-2Third Party Advisory
https://bugs.launchpad.net/ubuntu/+source/php5/+bug/1534203Third Party Advisory
https://bugs.php.net/bug.php?id=70014Vendor Advisory

Timeline

Published: May 22, 2016
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2015-8867?

How severe is CVE-2015-8867?

Severity scoring for CVE-2015-8867 is pending analysis. The EPSS model estimates a 4.35% probability of exploitation in the next 30 days.

How do I fix CVE-2015-8867?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2015-8867?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST