CVE-2015-8867

moderate-risk
Published 2016-05-22

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.

Do I need to act?

!
13.4% chance of exploitation in next 30 days
EPSS score — higher than 87% of all CVEs
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.5/10 High
NETWORK / LOW complexity

Affected Products (4)

Php

Affected Vendors

Php Canonical

References (24)

http://git.php.net/?p=php-src.git%3Ba=commit%3Bh=16023f3e3b9c06cf677c3c980e8d574...
Mailing List http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00031.html
Mailing List http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00033.html
Mailing List http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00056.html
Third Party Advisory http://rhn.redhat.com/errata/RHSA-2016-2750.html
Mailing List http://www.openwall.com/lists/oss-security/2016/04/24/1
Vendor Advisory http://www.php.net/ChangeLog-5.php
Vendor Advisory http://www.php.net/ChangeLog-7.php
Third Party Advisory http://www.ubuntu.com/usn/USN-2952-1
Third Party Advisory http://www.ubuntu.com/usn/USN-2952-2
Third Party Advisory https://bugs.launchpad.net/ubuntu/+source/php5/+bug/1534203
Vendor Advisory https://bugs.php.net/bug.php?id=70014
http://git.php.net/?p=php-src.git%3Ba=commit%3Bh=16023f3e3b9c06cf677c3c980e8d574...
Mailing List http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00031.html
Mailing List http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00033.html
Mailing List http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00056.html
Third Party Advisory http://rhn.redhat.com/errata/RHSA-2016-2750.html
Mailing List http://www.openwall.com/lists/oss-security/2016/04/24/1
Vendor Advisory http://www.php.net/ChangeLog-5.php
Vendor Advisory http://www.php.net/ChangeLog-7.php
and 4 more references
48
/ 100
moderate-risk
Severity 26/34 · High
Exploitability 12/34 · Low
Exposure 10/34 · Low