Home/CVE/Zend/zend_hash.c in PHP before 7.0.15 and 7.1.x before 7.1.1 mishandles certain cases that require large array allocatio
CVE

CVE-2017-5340

Zend/zend_hash.c in PHP before 7.0.15 and 7.1.x before 7.1.1 mishandles certain cases that require large array allocatio

Zend/zend_hash.c in PHP before 7.0.15 and 7.1.x before 7.1.1 mishandles certain cases that require large array allocations, which allows remote attackers to execute arbitrary code or cause a denial of service (integer overflow, uninitialized memory access, and use of arbitrary destructor function pointers) via crafted serialized data.

CRITICAL · CVSS 9.8 EPSS 0.05169
Act now
  • EPSS percentile: top 10% of all CVEs by exploitation likelihood
  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-190Integer Overflow or Wraparound
▤

Affected Products & Versions

3
php>= 7.0.0 and < 7.0.15
php>= 7.1.0 and < 7.1.1
netapp clustered data ontapall versions
⚠

Public Exploits & PoCs

1
pocbugs.php.net · bug.php?id=73832bugs.php.net
▣

Scoring & Timeline

9.8
CRITICAL · CVSS v3.1 · 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 NVD11 Jan 2017 · 06:59 AM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
⚑

Vendor Advisories

3
rhsaRHSA-2018:1296Low
usnUSN-3211-1
suse-csafSUSE-SU-2017:0534-1
🔗

References & Sources

4
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://www.securityfocus.com/bid/95371Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1037659Third Party AdvisoryVDB Entry
https://github.com/php/php-src/commit/4cc0286f2f3780abc6084bcdae5dce595daa3c12PatchThird Party Advisory
https://security.netapp.com/advisory/ntap-20180112-0001/Third Party Advisory
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