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CVE
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CVE-2016-1902Date: (C)2016-06-02   (M)2023-12-22


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.

CVSS Score and Metrics +CVSS Score and Metrics -

CVSS V3 Severity:CVSS V2 Severity:
CVSS Score : 7.5CVSS Score : 5.0
Exploit Score: 3.9Exploit Score: 10.0
Impact Score: 3.6Impact Score: 2.9
 
CVSS V3 Metrics:CVSS V2 Metrics:
Attack Vector: NETWORKAccess Vector: NETWORK
Attack Complexity: LOWAccess Complexity: LOW
Privileges Required: NONEAuthentication: NONE
User Interaction: NONEConfidentiality: PARTIAL
Scope: UNCHANGEDIntegrity: NONE
Confidentiality: HIGHAvailability: NONE
Integrity: NONE 
Availability: NONE 
  
Reference:
DSA-3588
http://symfony.com/blog/cve-2016-1902-securerandom-s-fallback-not-secure-when-openssl-fails
https://github.com/symfony/symfony/pull/17359
https://www.landaire.net/blog/cve-2016-1902-symfony-securerandom/

CPE    20
cpe:/a:sensiolabs:symfony:2.6.0
cpe:/a:sensiolabs:symfony:2.6.1
cpe:/a:sensiolabs:symfony:2.7.0
cpe:/a:sensiolabs:symfony:2.6.2
...
CWE    1
CWE-310
OVAL    1
oval:org.secpod.oval:def:602518

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