CVE-2016-5770: Debian Linux

Critical severity, CVSS 9.8. EPSS: 7.3% chance of exploitation in the next 30 days.

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.

Affected products

• Debian Debian Linux: version 8.0 only
• Opensuse Leap: version 42.1 only
• Opensuse Opensuse: version 13.2 only
• PHP PHP: before 5.5.37 (fixed in 5.5.37); from 5.6.0, before 5.6.23 (fixed in 5.6.23); from 7.0.0, before 7.0.8 (fixed in 7.0.8)

Published 2016-08-07. Last modified 2026-06-17.