CVE-2016-1902

Published: Jun 1, 2016Updated: May 6, 2026 Sources: CVE List NVD GHSACWE-310

7.5HIGH

NVD MITRE

Description

The nextBytes function in the SecureRandom class in Symfony before 2.3.37, 2.6.x before 2.6.13, and 2.7.x before 2.7.9 does not properly generate random numbers when used with PHP 5.x without the paragonie/random_compat library and the openssl_random_pseudo_bytes function fails, which makes it easier for attackers to defeat cryptographic protection mechanisms via unspecified vectors.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:LAttack Complexity

Low

PR:NPrivileges Required

None

UI:NUser Interaction

None

Scope

S:UScope

Unchanged

Impact

C:HConfidentiality

High

I:NIntegrity

None

A:NAvailability

None

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Weaknesses

CWE-310

Affected Products

Packagist

package-ecosystem

symfony/security-core

oss-project·GBaka debian gnu/linux

debian linuxOn-premOS

Operating Systems / linux-distro

sensiolabs

oss-project

symfonyLibraryLibrary

OSS Libraries / generic-library

and 1 more affected products View all →

Exploitability

3 exploit sources identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details

Official Patch Available

Is your org exposed to CVE-2016-1902?Request an assessment to establish which checks are appropriate for your systems. Check my exposure

References

http://symfony.com/blog/cve-2016-1902-securerandom-s-fallback-not-secure-when-openssl-fails

symfony.com

http://www.debian.org/security/2016/dsa-3588

debian.org

https://github.com/symfony/symfony/pull/17359

github.com

and 7 more references View all →

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