Integer overflow in NetApp Clustered Data Ontap
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 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.
Vulnerability class: Integer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.167 (96.9th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 97th percentile — 96.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.167 · newest: 0.167 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/php/php-src/commit/4cc0286f2f3780abc6084bcdae5dce595daa3c12 (Patch, Third Party Advisory)
- access.redhat.com/errata/RHSA-2018:1296 (vendor-advisory, Third Party Advisory)
- security.netapp.com/advisory/ntap-20180112-0001/ (Third Party Advisory)
- www.securityfocus.com/bid/95371 (VDB Entry, Third Party Advisory, vdb-entry)
- bugs.php.net/bug.php (Exploit, VDB Entry, Issue Tracking, Vendor Advisory)
- www.securitytracker.com/id/1037659 (VDB Entry, Third Party Advisory, vdb-entry)
Frequently asked questions
- What is CVE-2017-5340?
- CVE-2017-5340 is a critical-severity vulnerability in NetApp Clustered Data Ontap, classified under Integer Overflow or Wraparound. CVSS score: 9.8/10. Published 2017-01-11.
- How severe is CVE-2017-5340?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2017-5340 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.