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CVE-2016-1902

UnknownEPSS 1.91%

Last modified

CVE-2016-1902 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 1.91% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability
1.91%

77.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
DebianDebian Linux8.0
SensiolabsSymfony<= 2.3.36
SensiolabsSymfony2.6.0
SensiolabsSymfony2.6.1
SensiolabsSymfony2.6.2
SensiolabsSymfony2.6.3
SensiolabsSymfony2.6.4
SensiolabsSymfony2.6.5
SensiolabsSymfony2.6.6
SensiolabsSymfony2.6.7
SensiolabsSymfony2.6.8
SensiolabsSymfony2.6.9
SensiolabsSymfony2.6.10
SensiolabsSymfony2.6.11
SensiolabsSymfony2.6.12
SensiolabsSymfony2.7.0
SensiolabsSymfony2.7.1
SensiolabsSymfony2.7.2
SensiolabsSymfony2.7.3
SensiolabsSymfony2.7.4
SensiolabsSymfony2.7.5
SensiolabsSymfony2.7.6
SensiolabsSymfony2.7.7
SensiolabsSymfony2.7.8

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2016-1902?
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.
How severe is CVE-2016-1902?
Severity scoring for CVE-2016-1902 is pending analysis. The EPSS model estimates a 1.91% probability of exploitation in the next 30 days.
How do I fix CVE-2016-1902?
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.

How Strix Helps

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Source: NVD / NIST