Home/CVE/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 b
CVE

CVE-2015-8867

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 b

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.

HIGH · CVSS 7.5 EPSS 0.13368
Schedule remediation
  • EPSS ≥ 0.10 - elevated exploitation probability
  • EPSS percentile: top 6% of all CVEs by exploitation likelihood
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
▤

Affected Products & Versions

4
php>= 5.4.0 and < 5.4.44
php>= 5.5.0 and < 5.5.28
php>= 5.6.0 and < 5.6.12
canonical ubuntu linuxall versions
▣

Scoring & Timeline

7.5
HIGH · CVSS v3.0 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD22 May 2016 · 01:59 AM
CVSS VectorCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
⚑

Vendor Advisories

5
rhsaRHSA-2016:2750Moderate
suse-csafSUSE-SU-2016:1638-1
suse-csafSUSE-SU-2016:1581-1
suse-csafSUSE-SU-2016:1310-1
suse-csafSUSE-SU-2016:1277-1
🔗

References & Sources

12
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://git.php.net/?p=php-src.git
http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00031.htmlMailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00033.htmlMailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00056.htmlMailing ListThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-2750.htmlThird Party Advisory
http://www.openwall.com/lists/oss-security/2016/04/24/1Mailing ListThird Party Advisory
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