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.
The MITRE CVE dictionary describes this issue as:
Find out more about CVE-2016-5769 from the MITRE CVE dictionary dictionary and NIST NVD.
The versions of PHP package shipped with Red Hat Enterprise Linux, do not have support for mcrypt.
NOTE: The following CVSS v2 metrics and score provided are preliminary and subject to review.
Base Score | 5.1 |
---|---|
Base Metrics | AV:N/AC:H/Au:N/C:P/I:P/A:P |
Access Vector | Network |
Access Complexity | High |
Authentication | None |
Confidentiality Impact | Partial |
Integrity Impact | Partial |
Availability Impact | Partial |
NOTE: The following CVSS v3 metrics and score provided are preliminary and subject to review.
CVSS3 Base Score | 5.6 |
---|---|
CVSS3 Base Metrics | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L |
Attack Vector | Network |
Attack Complexity | High |
Privileges Required | None |
User Interaction | None |
Scope | Unchanged |
Confidentiality | Low |
Integrity Impact | Low |
Availability Impact | Low |
Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).
Platform | Package | State |
---|---|---|
Red Hat Software Collections for Red Hat Enterprise Linux | php55-php | Not affected |
Red Hat Software Collections for Red Hat Enterprise Linux | rh-php56-php | Not affected |
Red Hat Software Collections for Red Hat Enterprise Linux | php54-php | Not affected |
Red Hat Enterprise Linux 7 | php | Not affected |
Red Hat Enterprise Linux 6 | php | Not affected |
Red Hat Enterprise Linux 5 | php53 | Not affected |
Red Hat Enterprise Linux 5 | php | Not affected |