CVE-2015-8867

php: openssl_random_pseudo_bytes() is not cryptographically secure

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Severity

Moderate

Red Hat Product Security

3.7

CVSS 3.0

Review impact separately from score.

Published · April 21, 2016

Updated · June 28, 2026

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.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.0 · 3.7
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

CVSS 2.0 · 4
AV:N/AC:H/Au:N/C:P/I:P/A:N

CWE not specified