CVE-2016-5114

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Last Modified: UTC

Description

An out-of-bounds write flaw was found in the fpm_log_write() logging function of PHP's FastCGI Process Manager service. A remote attacker could repeatedly send maliciously crafted requests to force FPM to exhaust file system space, creating a denial of service and preventing further logging.

An out-of-bounds write flaw was found in the fpm_log_write() logging function of PHP's FastCGI Process Manager service. A remote attacker could repeatedly send maliciously crafted requests to force FPM to exhaust file system space, creating a denial of service and preventing further logging.

Additional information

  • Bugzilla 1297710: php: out-of-bounds write in fpm_log.c
  • CWE-787: Out-of-bounds Write
  • FAQ: Frequently asked questions about CVE-2016-5114

Common Vulnerability Scoring System (CVSS) Score Details

Important note

CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).

CVSS v2 Score Breakdown
Red HatNVD

CVSS v2 Base Score

5.8

6.4

Attack Vector

Network

Network

Access Complexity

Medium

Low

Authentication

None

None

Confidentiality Impact

Partial

Partial

Integrity Impact

Partial

None

Availability Impact

None

Partial

CVSS v2 Vector

Red Hat: AV:N/AC:M/Au:N/C:P/I:P/A:N

NVD: AV:N/AC:L/Au:N/C:P/I:N/A:P

Frequently Asked Questions

Why is Red Hat's CVSS v3 score or Impact different from other vendors?

My product is listed as "Under investigation" or "Affected", when will Red Hat release a fix for this vulnerability?

What can I do if my product is listed as "Will not fix"?

What can I do if my product is listed as "Fix deferred"?

What is a mitigation?

I have a Red Hat product but it is not in the above list, is it affected?

Why is my security scanner reporting my product as vulnerable to this vulnerability even though my product version is fixed or not affected?

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