CVE-2016-5399

HIGH severity · CVSS 7.8 · Out-of-bounds write

7.8CVSS HIGH

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.

Impact & exploitability

Attack vectorLocal

Attack complexityLow

Privileges requiredNone

User interactionRequired

Confidentiality impactHigh

Integrity impactHigh

Availability impactHigh

Exploit probability (EPSS)14%

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

Affected products we track (1)

PHP

Recommendation

Apply the vendor fix promptly. Open any affected product above for its exact safe version.

Additional information

NVD record
http://php.net/ChangeLog-5.phpAdvisory
http://php.net/ChangeLog-7.phpAdvisory
http://rhn.redhat.com/errata/RHSA-2016-2598.htmlAdvisory
http://rhn.redhat.com/errata/RHSA-2016-2750.htmlAdvisory
http://www.debian.org/security/2016/dsa-3631Advisory
http://packetstormsecurity.com/files/137998/PHP-7.0.8-5.6.23-5.5.37-bzread-OOB-Write.htmlAdvisory
http://seclists.org/fulldisclosure/2016/Jul/72Advisory
http://www.openwall.com/lists/oss-security/2016/07/21/1Advisory