Multiple integer overflows in mcrypt.c in the mcrypt extension in PHP before 5.5.37, 5.6.x before 5.6.23, and 7.x before 7.0.8 allow remote attackers to cause a denial of service (heap-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted length value, related to the (1) mcrypt_generic and (2) mdecrypt_generic functions.
Published 2016-08-07 10:59:17
Updated 2016-11-28 20:29:19
Source MITRE
View at NVD,   CVE.org
Vulnerability category: OverflowDenial of service

Threat overview for CVE-2016-5769

Top countries where our scanners detected CVE-2016-5769
Top open port discovered on systems with this issue 80
IPs affected by CVE-2016-5769 356,663
Threat actors abusing to this issue? Yes
Find out if you* are affected by CVE-2016-5769!
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Exploit prediction scoring system (EPSS) score for CVE-2016-5769

4.96%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 92 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2016-5769

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
7.5
HIGH AV:N/AC:L/Au:N/C:P/I:P/A:P
10.0
6.4
NIST
9.8
CRITICAL CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.9
5.9
NIST

CWE ids for CVE-2016-5769

  • The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control.
    Assigned by: nvd@nist.gov (Primary)

References for CVE-2016-5769

Products affected by CVE-2016-5769

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