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CVE-2016-5399

HighPublished

The bzread function in ext/bz2/bz2.c in PHP before 5.5.38, 5.6.x before 5.6.24, and 7.x before 7.0.9 allows remote attackers to cause a denial of service...

Published: Apr 21, 2017
Updated: Aug 6, 2024
Assigning CNA: redhat
Evidence observed: Jul 25, 2016

Primary CVSS

7.8/ 10High

nvd · CVSS 3.1

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS probability estimate

9.8%

Low · next 30 days

Percentile: 95.4%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

The bzread function in ext/bz2/bz2.c in PHP before 5.5.38, 5.6.x before 5.6.24, and 7.x before 7.0.9 allows remote attackers to cause a denial of service (out-of-bounds write) or execute arbitrary code via a crafted bz2 archive.

Sources

PHP 5.5.37/5.6.23/7.0.8 - 'bzread()' Out-of-Bounds WriteExploit
Hans Jerry Illikainen · php · Jul 25, 2016

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