CVE-2016-5770 Integer overflow in n/a

What is CVE-2016-5770?

CVE-2016-5770 is a critical vulnerability in Debian Debian Linux, published on 7 Aug 2016. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official 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.

Weakness: CWE-190

Which versions are affected by CVE-2016-5770?

It affects 4 products.

Products include Debian Debian Linux, Opensuse Leap, Opensuse Opensuse, Php Php.

How do I fix CVE-2016-5770?

Upgrade to a fixed version.

Is CVE-2016-5770 being exploited?

There is no known exploitation of CVE-2016-5770 in the wild and no public exploit code.

Other vulnerabilities in Debian Debian Linux

• CVE-2015-3306 ProFTPD Improper Access Control Exploited Critical 10.0
• CVE-2025-49113 RoundCube Webmail Deserialization of Untrusted Data Exploited Critical 9.9
• CVE-2026-24061 GNU InetUtils Argument Injection Exploited Critical 9.8
• CVE-2025-39682 Linux Kernel Improper Check for Unusual or Exceptional Conditions Exploited Critical 9.8
• CVE-2024-9680 Mozilla Firefox Use-After-Free Exploited Critical 9.8

All Debian Debian Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-cc8q-wj33-74wc.