CVE-2016-5770

critical
Published 2016-08-07 · Modified 2026-05-06
CVSS v3
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v2
7.5
VIR risk
9.8

Description

Integer overflow in the SplFileObject::fread function in spl_directory.c in the SPL extension in PHP before 5.5.37 and 5.6.x before 5.6.23 allows remote attackers to cause a denial of service or possibly have unspecified other impact via a large integer argument, a related issue to CVE-2016-5096.

Predictions

Exploit likelihood
97%
Patch ETA

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2016-5770.html

vendor Authored 2026-05-27

Vendor advisory: cve@mitre.org — https://bugs.php.net/bug.php?id=72262

vendor Authored 2026-05-27

Vendor advisory: cve@mitre.org — http://www.openwall.com/lists/oss-security/2016/06/23/4

vendor Authored 2026-05-27

Vendor advisory: cve@mitre.org — http://php.net/ChangeLog-5.php

vendor Authored 2026-05-27

Vendor advisory: cve@mitre.org — http://github.com/php/php-src/commit/7245bff300d3fa8bacbef7897ff080a6f1c23eba?w=1

OS impact

OSVersionStatusFixed in
suse slesaffected
debian debian8.0affected
suse suse42.1affected
suse suse13.2affected

Application impact

VendorProductVersionsFixed
php phpphp{"endExcluding":"5.5.37"}5.5.37

References

CWEs

CWE-190

Verify integrity in audit chain (admin only). AS-IS.