CVE-2017-5340: netapp clustered_data_ontap Integer Overflow or Wraparound
Vulnerability summary
CVE-2017-5340 is a critical (CVSS 9.8) Integer Overflow or Wraparound vulnerability in netapp clustered_data_ontap. EPSS estimates a 16.69% chance of exploitation in the next 30 days, higher than 97% of scored vulnerabilities. 1 public exploit is recorded.
Public exploit (reference, Date unknown)
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 3 · Related 2Timeline
- 11-01-2017PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
4 scores · 2 sources · 3 versions- OSV · UbuntuEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
16.69%
Chance of exploitation in the next 30 days
Percentile
97%
Versus all other CVEs
30-day change
No change 0.00 pp
From 16.69% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
1 foundExploit Reference (bugs.php.net)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Netapp1 product
Php1 product
- php≥ 7.0.0, < 7.0.15 | ≥ 7.1.0, < 7.1.1
Ubuntu1 product
- php7.0< 7.0.15-0ubuntu0.16.04.2
3 vendors · 3 products
References
9 links- github.com/php/php-src/commit/4cc0286f2f3780abc6084bcdae5dce595daa3c12X Refsource CONFIRMPatchThird Party Advisory