Integer overflow in Php

CVE-2016-4345

Integer overflow in the php_filter_encode_url function in ext/filter/sanitizing_filters.c in PHP before 7.0.4 allows remote attackers to cause a denial of service or possibly have unspecified other impact via a long string, leading to a heap-based buffer overflow.

Vulnerability class: Integer Overflow

EPSS: 0.052 (91.6th percentile) — read the EPSS interpretation.

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.

Affected products

  • Php
  • N/a — versions n/a

Weakness classification (CWE)

References

  • cve@mitre.org (x_refsource_CONFIRM, Exploit, Patch, Issue Tracking, Vendor Advisory)
  • cve@mitre.org (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
  • cve@mitre.org (x_refsource_CONFIRM, Release Notes, Vendor Advisory)

Frequently asked questions

What is CVE-2016-4345?
CVE-2016-4345 is a critical-severity vulnerability in Php, classified under Integer Overflow or Wraparound. CVSS score: 9.8/10. Published 2016-05-22.
How severe is CVE-2016-4345?
Critical severity. CVSS v3 base score is 9.8 out of 10.