High

ZendFramework1 Potential Insufficient Entropy Vulnerability

  • Disclosed: 07.06.2024
  • Updated: 11.10.2026 10:22

We discovered several methods used to generate random numbers in ZF1 that potentially used insufficient entropy. These random number generators are used in the following method calls:

Zend_Ldap_Attribute::createPassword
Zend_Form_Element_Hash::_generateHash
Zend_Gdata_HttpClient::filterHttpRequest
Zend_Filter_Encrypt_Mcrypt::_srand
Zend_OpenId::randomBytes

In each case, the methods were using rand() or mt_rand(), neither of which can generate cryptographically secure values. This could potentially lead to information disclosure should an attacker be able to brute force the random number generation.

Moreover, we discovered a potential security issue in the usage of the openssl_random_pseudo_bytes() function in Zend_Crypt_Math::randBytes, reported in PHP BUG #70014, and the security implications reported in a discussion on the random_compat library.

Affected software

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PlatformPackageVulnerable versionsFixed in
Composer package zendframework/zendframework1 >= 1.12.0, < 1.12.18 1.12.18

References

CVSS score 7.5/10
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness (CWE)
CWE-331
Platform
Composer
Package
zendframework/zendframework1
Disclosed
07.06.2024
Updated
11.10.2026 10:22

Sources and licenses

OSV / GitHub Advisory Database - GHSA-8xhv-gqm4-3w99 - CC BY 4.0

Vulnerability history: zendframework/zendframework1

All published vulnerabilities of this package (Composer package), newest first. Shows whether this is a one-off slip or a package that needs watching.

All (34) in the archive
Total entries
34
First → latest
05.2022 06.2024
Without a fix
0
Exploited in attacks
0

Severity breakdown

  • Critical 8
  • High 9
  • Medium 17

Disclosures per year

  1. 2022: 13
  2. 2023: 0
  3. 2024: 21
  4. 2025: 0
  5. 2026: 0
Severity:
  1. Critical · 9.8 ghsa-6fqw-j3vm-7f66 < 1.12.20 1.12.20
  2. High · 7.5 ghsa-848f-mph5-9pm9 >= 1.12.0, < 1.12.17 1.12.17
  3. ZendFramework1 Potential Insufficient Entropy Vulnerability this entry
    High · 7.5 ghsa-8xhv-gqm4-3w99 >= 1.12.0, < 1.12.18 1.12.18
  4. Critical · 9.8 ghsa-v42g-7q2x-cw32 >= 1.12.0, < 1.12.16 1.12.16
  5. Critical · 9.8 ghsa-2x36-qhx3-7m5f >= 1.12.0, < 1.12.7 1.12.7
  6. High · 7.5 ghsa-9v78-h226-2rmq >= 1.12.0, < 1.12.4 1.12.4
  7. High · 8.6 ghsa-229x-22xc-2f2w >= 1.0.0, < 1.11.13 1.11.13
  8. High · 7.5 ghsa-2jx7-xg83-j2m7 >= 1.0.0, < 1.11.13 1.11.13
  9. Critical · 9.8 ghsa-mhpx-3rv8-wrjm >= 1.12.0, < 1.12.4 1.12.4
  10. High · 7.5 ghsa-4j9x-g4x8-vcmf >= 1.11.0, < 1.11.15, >= 1.12.0, < 1.12.1 1.11.15, 1.12.1
  11. Critical · 9.8 ghsa-qf36-fx9f-232x >= 1.10.0, < 1.10.9, >= 1.11.0, < 1.11.6 1.10.9, 1.11.6
  12. Critical · 9.8 CVE-2014-8089 >= 1.12.0, < 1.12.9 1.12.9
  13. High · 7.3 CVE-2012-3363 >= 1.0.0, < 1.11.12, >= 1.12.0-rc1, < 1.12.0 1.11.12, 1.12.0
  14. High · 7.8 CVE-2015-5723 >= 1.12.0, < 1.12.16 1.12.16
  15. Critical · 9.8 CVE-2015-7695 < 1.12.16 1.12.16
  16. Critical · 9.8 CVE-2016-6233 < 1.12.19 1.12.19

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